CN112129232A - Light beam alignment device of laser displacement sensor - Google Patents
Light beam alignment device of laser displacement sensor Download PDFInfo
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- CN112129232A CN112129232A CN202011012531.4A CN202011012531A CN112129232A CN 112129232 A CN112129232 A CN 112129232A CN 202011012531 A CN202011012531 A CN 202011012531A CN 112129232 A CN112129232 A CN 112129232A
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- light beam
- displacement sensor
- laser displacement
- guide rail
- laser
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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
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/30—Collimators
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention belongs to the technical field of laser detection and calibration, and discloses a light beam alignment device of a laser displacement sensor, which comprises the laser displacement sensor and a light beam detection mechanism, wherein the laser displacement sensor emits a laser beam to the light beam detection mechanism; the guide rail comprises a fixed guide rail and a movable guide rail, an alignment sleeve a is arranged on the fixed guide rail, and an alignment sleeve b is arranged on the movable guide rail; in summary, two alignment sleeves are provided for passing through the laser beam emitted by the laser displacement sensor, and one alignment sleeve far away from the laser displacement sensor can be directionally reciprocated, so that the emitting angle of the laser beam is effectively detected in the process of reciprocating, and the emitting angle of the laser beam is convenient to adjust.
Description
Technical Field
The invention belongs to the technical field of laser detection and calibration, and particularly relates to a light beam alignment device of a laser displacement sensor.
Background
The laser displacement sensor is a sensor for measuring by using a laser technology and consists of a laser, a laser detector and a measuring circuit;
at present, in the use process of a laser displacement sensor, due to the deviation of the installation position and the deviation of the structure assembly, a light beam emitted by a laser cannot be accurately shot to a detected object, so that a large error exists in a measurement result, and the actual moving distance of the corresponding object cannot be effectively reflected.
In addition, in the conventional operation, the alignment correction of the laser displacement sensor light beam mostly depends on the experience of a technician for precision judgment, and the requirement of high-precision alignment correction cannot be met.
Disclosure of Invention
In view of the above, to solve the deficiencies of the prior art, the present invention provides a beam alignment apparatus for a laser displacement sensor.
In order to achieve the purpose, the invention provides the following technical scheme: a light beam alignment device of a laser displacement sensor comprises the laser displacement sensor and a light beam detection mechanism which are correspondingly arranged, wherein the laser displacement sensor emits laser beams to the light beam detection mechanism, the light beam detection mechanism comprises a guide rail, an alignment sleeve a fixedly arranged on the guide rail and an alignment sleeve b movably arranged on the guide rail, and the alignment sleeve a is positioned between the laser displacement sensor and the alignment sleeve b;
the guide rail includes fixed guide and movable guide, fixed guide is equipped with two, and symmetric distribution is in movable guide's both sides, and aims at cover a and install on fixed guide, two telescopic cylinder, and two all welded in one side of fixed guide one side telescopic cylinder's flexible end is connected with movable guide's both sides respectively, movable guide passes through slider and telescopic cylinder sliding fit, and aims at cover b and install on movable guide.
Preferably, a display screen is further mounted on the moving guide rail, and the alignment sleeve b is located between the alignment sleeve a and the display screen.
Preferably, one side of the display screen, which is close to the alignment sleeve b, is provided with an identification ring, the diameter of the identification ring is the same as the inner diameter of the alignment sleeve b, at least four movable identification sliding blocks are arranged in the identification ring in an array mode, and one end of each identification sliding block is connected with an electronic micrometer.
Furthermore, the alignment device further comprises a light beam adjusting mechanism, and the light beam adjusting mechanism is fixed at the light beam emitting end of the laser displacement sensor and used for adjusting the light beam emitting angle.
Preferably, an angle-adjustable mounting sleeve is arranged in the light beam adjusting mechanism, and a laser in the laser displacement sensor is arranged in the mounting sleeve; a plurality of springs are connected to one side of the mounting sleeve at equal intervals, and a V-shaped limiting groove is formed in the other side of the mounting sleeve; the outer wall of one side of the light beam adjusting mechanism is embedded with a slidable limiting block, and the limiting block is matched with the V-shaped limiting groove to limit the positioning angle of the mounting sleeve.
Preferably, a first chute is formed in the outer wall of one side of the light beam adjusting mechanism, the limiting block slides in the first chute, fixed blocks are arranged at two ends of the first chute, a lead screw is connected between the two fixed blocks in a rotating mode, and the limiting block is sleeved on the lead screw in a rotating mode.
Preferably, a movable sliding sleeve is arranged in the light beam adjusting mechanism, a lens corresponding to the laser is arranged in the sliding sleeve, and the light beam emitted by the laser passes through the lens.
Preferably, two second chutes are symmetrically formed in two sides of the light beam adjusting mechanism, connecting rods slide in the two second chutes, one ends of the connecting rods are welded to the sliding sleeves, the other ends of the connecting rods are connected with threaded sleeves in a sliding mode, and the threaded sleeves are sleeved on the outer wall of the light beam adjusting mechanism in a rotating mode.
Compared with the prior art, the invention has the following beneficial effects:
(1) in the invention, two alignment sleeves are arranged for penetrating through the laser beam emitted by the laser displacement sensor, and one alignment sleeve far away from the laser displacement sensor can be directionally reciprocated, so that the emitting angle of the laser beam can be effectively detected in the process of reciprocating movement, and the emitting angle of the laser beam can be conveniently adjusted.
(2) Aiming at the movable alignment sleeve, a display light screen is arranged on one side of the movable alignment sleeve, which is far away from the laser displacement sensor, so that laser beams can present light spots on the display light screen; and the display screen is also provided with an identification ring which coaxially corresponds to the alignment sleeve, and the identification ring is internally provided with an identification sliding block matched with the micrometer, so that the alignment state of the light spot and the center of the identification ring can be effectively detected, and the alignment state and the position of the light beam can be conveniently adjusted.
(3) Aiming at the laser displacement sensor, an adjusting mechanism of the light beam emission angle is correspondingly arranged, and the adjusting mechanism comprises a movable lens and an installation sleeve with an adjustable angle, so that the alignment sleeve and the display screen can be effectively matched to quickly finish the alignment correction of the light beam.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of a guide rail in the beam detection mechanism of the present invention;
FIG. 3 is a side view of a display screen in the beam detection mechanism of the present invention;
FIG. 4 is a schematic structural diagram of a beam adjustment mechanism according to the present invention;
FIG. 5 is an external view of the light beam adjusting mechanism according to the present invention;
in the figure: the device comprises a laser displacement sensor-1, a light beam detection mechanism-2, a guide rail-21, a fixed guide rail-211, a movable guide rail-212, a telescopic cylinder-213, an alignment sleeve a-22, an alignment sleeve b-23, a display screen-24, an identification ring-241, an identification slider-242, an electronic micrometer-243, a light beam adjusting mechanism-3, an installation sleeve-31, a spring-32, a V-shaped limit groove-33, a limit block-34, a first chute-35, a screw rod-36, a sliding sleeve-37, a lens-38, a second chute-39, a connecting rod-391 and a threaded sleeve-392.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides the following technical solutions:
example 1
A light beam alignment device of a laser displacement sensor comprises a laser displacement sensor 1 (shown by a dashed line frame in figure 1) and a light beam detection mechanism 2 which are correspondingly arranged, wherein the laser displacement sensor 1 emits a laser beam to the light beam detection mechanism 2, the light beam detection mechanism 2 comprises a guide rail 21, an alignment sleeve a22 fixedly arranged on the guide rail 21 and an alignment sleeve b23 movably arranged on the guide rail 21, and the alignment sleeve a22 is positioned between the laser displacement sensor 1 and the alignment sleeve b 23;
As can be seen from the above, in the present embodiment, the principle of implementing the beam alignment correction of the laser displacement sensor 1 by using the beam detection mechanism 2 in cooperation is as follows: the laser displacement sensor 1 emits a laser beam, the laser beam passes through the alignment sleeve a22 and the alignment sleeve b23, meanwhile, it is guaranteed that no light spot is formed on the inner wall of the alignment sleeve a22, then the telescopic cylinder 213 is started to drive the movable guide rail 212 to move, and further the alignment sleeve b23 is driven to move synchronously, so that the alignment sleeve b23 is gradually far away from the alignment sleeve a22, in the process, if the light spot is formed on the inner wall of the alignment sleeve b23, the emitting direction of the light beam is determined to be in an inclined state, the distance between the laser displacement sensor 1 and the alignment sleeve b23 (the critical position where the light spot is formed on the inner wall for the first time) is obtained, the emitting inclination angle of the light beam can be calculated, and then the emitting angle of the light beam of the laser displacement sensor 1 can be aligned and corrected.
Further, the display screen 24 is mounted on the moving rail 212, and the alignment sleeve b23 is located between the alignment sleeve a22 and the display screen 24.
Furthermore, an identification ring 241 is arranged on one side of the display screen 24 close to the alignment sleeve b23, the diameter of the identification ring 241 is the same as the inner diameter of the alignment sleeve b23, at least four movable identification sliders 242 are arranged in the identification ring 241 in an array manner, and one end of each identification slider 242 is connected with an electronic micrometer 243.
To sum up, the light beam that laser displacement sensor 1 sent still forms the facula on display screen 24, then adjust the position of sign slider 242 on the display screen 24, make at least four sign sliders 242 all be located the edge of facula, obtain the displacement distance of every sign slider 242 according to electron micrometer 243, and correspond the difference of the displacement distance of two sign sliders 242 of comparative symmetry, judge the deviation between facula and the sign circle 241 center that forms from this, and then can know the deviation distance between laser displacement sensor 1 and the light beam detection mechanism 2, further adjust the position of laser displacement sensor 1 according to this deviation distance, in order to guarantee that laser beam can accurate transmission to the center department of sign circle 241, and then can accurate transmission to corresponding detection object on, guarantee the accuracy of testing result.
Example 2
The utility model provides a laser displacement sensor's light beam aligning device, is including the laser displacement sensor 1, light beam detection mechanism 2 and the light beam adjustment mechanism 3 that correspond the setting, and wherein the concrete structure of laser displacement sensor 1 and light beam detection mechanism 2 is the same with embodiment 1, and about light beam adjustment mechanism 3, is fixed in the light beam transmitting end of laser displacement sensor 1 for adjust the light beam transmission angle.
Specifically, an angle-adjustable mounting sleeve 31 is arranged in the light beam adjusting mechanism 3, and a laser in the laser displacement sensor 1 is arranged in the mounting sleeve 31; a plurality of springs 32 are equidistantly connected to one side of the mounting sleeve 31, and a V-shaped limiting groove 33 is formed in the other side of the mounting sleeve 31; a slidable limiting block 34 is embedded in the outer wall of one side of the light beam adjusting mechanism 3, and the limiting block 34 is matched with the V-shaped limiting groove 33 to limit the positioning angle of the mounting sleeve 31.
Further, a first sliding groove 35 is formed in the outer wall of one side of the light beam adjusting mechanism 3, the limiting block 34 slides in the first sliding groove 35, fixing blocks are arranged at two ends of the first sliding groove 35, a screw rod 36 is rotatably connected between the two fixing blocks, and the limiting block 34 is rotatably sleeved on the screw rod 36.
Furthermore, a movable sliding sleeve 37 is arranged in the light beam adjusting mechanism 3, a lens 38 corresponding to the laser is arranged in the sliding sleeve 37, and the light beam emitted by the laser passes through the lens 38
It should be noted that two second sliding grooves 39 are symmetrically formed in two sides of the light beam adjusting mechanism 3, a connecting rod 391 slides in each of the two second sliding grooves 39, one end of the connecting rod 391 is welded to the sliding sleeve 37, the other end of the connecting rod 391 is connected to a threaded sleeve 392 in a sliding manner, and the threaded sleeve 392 is rotatably sleeved on the outer wall of the light beam adjusting mechanism 3.
As can be seen from the above, in the present embodiment, the principle of implementing the beam alignment correction of the laser displacement sensor 1 by using the cooperation of the beam adjusting mechanism 3 and the beam detecting mechanism 2 is as follows: according to the principle of the embodiment 1, the beam detection mechanism 2 can effectively detect the state of the beam emitted by the laser displacement sensor 1, and according to the state, the alignment correction can be completed by matching with the beam adjustment mechanism 3;
(1) the alignment adjustment of the emission angle of the light beam is carried out through the mounting sleeve 31 with adjustable angle: manually poking the screw rod 36, specifically, arranging a knob with an anti-slip sleeve at one end of the screw rod 36, so as to drive the screw rod 36, and driving the limit block 34 to slide along the first sliding groove 35 when the screw rod 36 rotates, as can be seen from fig. 4, when the limit block 34 slides rightwards, the limit block is matched with the V-shaped limit groove 33, and the front end of the installation sleeve 31 is extruded, so that the front end of the installation sleeve 31 descends, and further, the light beam emitted by the laser is driven to rotate clockwise, so that the angle adjustment is realized; on the contrary, the angle adjustment of the counterclockwise rotation of the light beam is realized; in the above adjustment process, based on the position of the light spot on the display screen 24, it can be determined whether the light beam position is aligned;
(2) beam emission angle alignment adjustment is performed by lens 38 movement: the threaded sleeve 392 is manually rotated to enable the threaded sleeve 392 to move along the outer wall of the light beam adjusting mechanism 3, and meanwhile the connecting rod 391 drives the sliding sleeve 37 and the lens 38 to synchronously move in the light beam adjusting mechanism 3, so that the distance between the laser and the lens 38 can be effectively adjusted, wherein the refraction angle of the lens 38 to light is fixed, the light beam emitting position of the laser is fixed, and therefore when the distance between the two is different, the light beam angles displayed after refraction are different; for example, when the laser is at the focal length of lens 38, a parallel beam is formed; at this time, the light beam emitted by the light source can be judged to be a parallel light beam by moving the alignment sleeve b23, and the light beam alignment adjustment can be completed by moving the screw sleeve 392.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A light beam alignment device of a laser displacement sensor is characterized in that: the device comprises a laser displacement sensor (1) and a light beam detection mechanism (2) which are correspondingly arranged, wherein the laser displacement sensor (1) emits a laser beam to the light beam detection mechanism (2), the light beam detection mechanism (2) comprises a guide rail (21), an alignment sleeve a (22) fixedly arranged on the guide rail (21) and an alignment sleeve b (23) movably arranged on the guide rail (21), and the alignment sleeve a (22) is positioned between the laser displacement sensor (1) and the alignment sleeve b (23);
guide rail (21) are including fixed guide rail (211) and moving guide rail (212), fixed guide rail (211) are equipped with two, and symmetric distribution is in the both sides of moving guide rail (212), and aims at cover a (22) and install on fixed guide rail (211), two telescopic cylinder (213) have all been welded to one side of fixed guide rail (211), and two telescopic cylinder (213) stretch out and draw back the end and be connected with the both sides of moving guide rail (212) respectively, moving guide rail (212) are through slider and telescopic cylinder (213) sliding fit, and aim at cover b (23) and install on moving guide rail (212).
2. The beam alignment apparatus of a laser displacement sensor according to claim 1, wherein: the display screen (24) is further installed on the moving guide rail (212), and the alignment sleeve b (23) is located between the alignment sleeve a (22) and the display screen (24).
3. The beam alignment apparatus of a laser displacement sensor according to claim 2, wherein: one side of the display screen (24) close to the alignment sleeve b (23) is provided with an identification ring (241), the diameter of the identification ring (241) is the same as the inner diameter of the alignment sleeve b (23), at least four movable identification sliding blocks (242) are arranged in the identification ring (241) in an array mode, and one end of each identification sliding block (242) is connected with an electronic micrometer (243).
4. A beam alignment apparatus of a laser displacement sensor according to any one of claims 1 to 3, wherein: the laser displacement sensor is characterized by further comprising a light beam adjusting mechanism (3), wherein the light beam adjusting mechanism (3) is fixed at a light beam emitting end of the laser displacement sensor (1) and used for adjusting a light beam emitting angle.
5. The beam alignment apparatus of a laser displacement sensor according to claim 4, wherein: an angle-adjustable mounting sleeve (31) is arranged in the light beam adjusting mechanism (3), and a laser in the laser displacement sensor (1) is arranged in the mounting sleeve (31); a plurality of springs (32) are connected to one side of the mounting sleeve (31) at equal intervals, and a V-shaped limiting groove (33) is formed in the other side of the mounting sleeve (31); the outer wall of one side of the light beam adjusting mechanism (3) is embedded with a slidable limiting block (34), and the limiting block (34) is matched with the V-shaped limiting groove (33) to limit the positioning angle of the mounting sleeve (31).
6. The beam alignment apparatus of a laser displacement sensor according to claim 5, wherein: first spout (35) have been seted up on one side outer wall of light beam adjustment mechanism (3), just stopper (34) slide in first spout (35), the both ends of first spout (35) all are equipped with the fixed block, and rotate between two fixed blocks and be connected with lead screw (36), stopper (34) are closed the cover soon and are located on lead screw (36).
7. The beam alignment apparatus of a laser displacement sensor according to claim 4, wherein: the laser beam adjusting mechanism is characterized in that a movable sliding sleeve (37) is arranged in the light beam adjusting mechanism (3), a lens (38) corresponding to the laser is arranged in the sliding sleeve (37), and light beams emitted by the laser penetrate through the lens (38).
8. The beam alignment apparatus of a laser displacement sensor according to claim 7, wherein: two second chutes (39) are symmetrically formed in two sides of the light beam adjusting mechanism (3), connecting rods (391) are arranged in the two second chutes (39) in a sliding mode, one ends of the connecting rods (391) are welded with the sliding sleeves (37), the other ends of the connecting rods are connected with threaded sleeves (392) in a sliding mode, and the threaded sleeves (392) are sleeved on the outer wall of the light beam adjusting mechanism (3) in a rotating mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011012531.4A CN112129232A (en) | 2020-09-24 | 2020-09-24 | Light beam alignment device of laser displacement sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011012531.4A CN112129232A (en) | 2020-09-24 | 2020-09-24 | Light beam alignment device of laser displacement sensor |
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| Publication Number | Publication Date |
|---|---|
| CN112129232A true CN112129232A (en) | 2020-12-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011012531.4A Withdrawn CN112129232A (en) | 2020-09-24 | 2020-09-24 | Light beam alignment device of laser displacement sensor |
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| CN (1) | CN112129232A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113740031A (en) * | 2021-08-31 | 2021-12-03 | 北京吉天仪器有限公司 | Light source adjusting device and method |
| CN114593637A (en) * | 2022-03-22 | 2022-06-07 | 浙江大学湖州研究院 | Laser beam-driving guidance instrument |
| CN116482656A (en) * | 2023-06-21 | 2023-07-25 | 华中科技大学 | Light path control switching device in laser range finder |
-
2020
- 2020-09-24 CN CN202011012531.4A patent/CN112129232A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113740031A (en) * | 2021-08-31 | 2021-12-03 | 北京吉天仪器有限公司 | Light source adjusting device and method |
| CN114593637A (en) * | 2022-03-22 | 2022-06-07 | 浙江大学湖州研究院 | Laser beam-driving guidance instrument |
| CN116482656A (en) * | 2023-06-21 | 2023-07-25 | 华中科技大学 | Light path control switching device in laser range finder |
| CN116482656B (en) * | 2023-06-21 | 2023-09-22 | 华中科技大学 | Light path control switching device in laser range finder |
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Application publication date: 20201225 |
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| WW01 | Invention patent application withdrawn after publication |