CN215338183U - Small laser displacement sensor - Google Patents
Small laser displacement sensor Download PDFInfo
- Publication number
- CN215338183U CN215338183U CN202121076961.2U CN202121076961U CN215338183U CN 215338183 U CN215338183 U CN 215338183U CN 202121076961 U CN202121076961 U CN 202121076961U CN 215338183 U CN215338183 U CN 215338183U
- Authority
- CN
- China
- Prior art keywords
- optical
- displacement sensor
- laser displacement
- bracket
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model belongs to the technical field of sensors, and particularly relates to a small laser displacement sensor which comprises a shell, wherein a circuit board and an optical bracket are arranged in the shell, the circuit board is connected with a communication line, and a laser emitting assembly and an optical receiving assembly which are electrically connected with the circuit board are arranged on the optical bracket; the optical bracket is hinged with the optical bracket, and the other end of the optical bracket is fixedly connected with an arc-shaped scale plate which can be slidably inserted into a sliding groove arranged on the optical bracket; the adjusting bracket is provided with a receiving lens group; and a first locking piece for preventing the adjusting frame from rotating and a second locking piece for preventing the arc-shaped scale plate from sliding are arranged on the optical bracket. Compared with the traditional laser displacement sensor, the adjustable laser displacement sensor is easier to disassemble, assemble and carry, and the installation position of the receiving lens group can be flexibly adjusted according to actual conditions by arranging the adjustable adjusting frame and installing the receiving lens group on the adjusting frame.
Description
Technical Field
The utility model belongs to the technical field of sensors, and particularly relates to a small laser displacement sensor.
Background
In the current industrial environment, the traditional displacement measurement mode mainly comprises the following steps: 1. contact measurements, such as vernier calipers, micrometer screws, micrometers, and the like; 2. non-contact measurement: laser displacement sensors, single and double frequency laser interferometers, photoelectric switches, etc.; compared with non-contact measurement, the traditional contact measurement has the disadvantages of low efficiency, low precision, easy generation of reading deviation, possibility of scratching the surface of a workpiece and incapability of effectively measuring the workpiece with a concave-convex surface. In non-contact measurement, the laser displacement sensor has the advantages of higher precision than an optoelectronic switch and lower price than a laser interferometer, but has larger volume and heavier weight, and therefore, a non-contact small-sized laser displacement sensor needs to be designed.
For example, the publication number CN209055655U discloses a laser displacement sensor and a control circuit thereof, wherein a main control module is integrated in the control circuit, and a laser control module, a sensor control module, a display control module and a power module are electrically connected with the main control module, so that the main control module comprises an ethernet chip, the laser control module is further electrically connected with a laser of the laser displacement sensor, the sensor control module is further electrically connected with an image sensor of the laser displacement sensor, the display control module is further electrically connected with a display screen of the laser displacement sensor, the ethernet chip is externally connected with an ethernet switch, so that the laser displacement sensor has data display and ethernet communication functions, and meanwhile, the laser displacement sensor is compact in structure and small in size.
Also, for example, publication No. CN101451823 discloses a laser displacement sensor for detecting object displacement, particularly for detecting road quality indexes such as road flatness, road structure depth, etc., which comprises a left and a right laser displacement sensors and a laser device disposed therebetween and shared by the two, wherein a set of imaging lens and a photoelectric receiver are respectively disposed in the left and the right laser displacement sensors along the direction of the imaging optical axis. During work, a collimated laser beam emitted by a laser irradiates the rough surface of a measured object and then forms a scattering light spot at an irradiation point, the left imaging lens and the right imaging lens image the scattering light spot on the left photoelectric receiver and the right photoelectric receiver respectively to obtain a left group of image points and a right group of image points, then the positions of the left image point and the right image point on the image surface photoelectric receiver can be obtained through data processing, and finally the displacement of the surface of the measured object can be obtained after the processing is carried out through a corresponding data processing method according to the positions of the image points.
Laser displacement sensor among the prior art is not convenient for the dismouting when overhauing, and laser displacement sensor among the prior art simultaneously, inside optical support often can't adjust optical device's position, leads to its commonality relatively poor to also can't adjust according to actual conditions is nimble.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned shortcomings, it is an object of the present invention to provide a compact laser displacement sensor.
The utility model provides the following technical scheme:
a compact laser displacement sensor comprising:
the shell is provided with a through hole at one end;
the optical filter is arranged in the through hole, and a laser ejection hole is formed in the optical filter;
the circuit board is arranged in the shell and is connected with a communication line;
further comprising:
the optical bracket is arranged in the shell, and a laser emitting assembly and an optical receiving assembly which are electrically connected with the circuit board are arranged on the optical bracket;
one end of the adjusting frame is hinged with the optical bracket, the other end of the adjusting frame is fixedly connected with an arc-shaped scale plate, and the arc-shaped scale plate is slidably inserted into a sliding chute arranged on the optical bracket;
the receiving lens group is arranged on the adjusting frame;
the first locking piece is arranged on the optical bracket and used for preventing the adjusting bracket from rotating;
and the second locking piece is arranged on the optical bracket and used for preventing the arc-shaped scale plate from sliding.
The optical bracket is provided with an installation column, and the installation column comprises an optical axis part and a thread part; one end of the adjusting frame is rotatably arranged on the optical axis part.
The first locking piece is a nut and is arranged on the threaded part; a rubber gasket is arranged between the nut and the adjusting bracket.
The optical bracket is provided with a first threaded hole communicated with the sliding groove; and the locking piece is a locking bolt which is arranged in the threaded hole I.
A cover plate is detachably mounted on the shell.
The optical receiving component is a CMOS component.
And the shell is provided with an indicator light electrically connected with the circuit board.
An aspherical mirror is arranged in the receiving mirror group.
A second threaded hole is formed in the optical bracket, and a positioning groove is formed in one end of the optical bracket; the inner wall of the shell is provided with a positioning lug; the optical bracket is fixedly arranged in the shell through bolt connection.
The utility model has the beneficial effects that:
1. compared with the traditional laser displacement sensor, the utility model is easier to disassemble, assemble and carry;
2. according to the utility model, the adjustable adjusting frame is arranged, and the receiving lens group is arranged on the adjusting frame, so that the mounting position of the receiving lens group can be flexibly adjusted according to the actual condition;
3. the utility model has convenient maintenance and lower cost.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a rear view of the present invention;
FIG. 4 is a top view of the present invention with the cover plate removed;
FIG. 5 is a schematic view of the present invention with the alignment bracket undeflected;
FIG. 6 is a schematic view of the deflection adjusting bracket of the present invention;
fig. 7 is a schematic view of the installation of the second locking member of the present invention.
Labeled as: the optical module comprises a shell 101, an optical filter 102, a laser emitting hole 103, a cover plate 104, an indicator lamp 105, a communication line 106, a circuit board 107, an optical receiving assembly 108, a laser emitting assembly 109, a receiving lens group 110, an optical support 201, a second threaded hole 202, a locking bolt 203, an arc-shaped scale plate 204, an adjusting frame 205, a threaded portion 206, a sliding groove 207 and an optical axis portion 208.
Detailed Description
As shown in the figure, the small laser displacement sensor comprises a housing 101, an optical filter 102, a circuit board 107, an optical support 201, a laser emitting assembly 109, an optical receiving assembly 108, a receiving lens group 110 and an adjusting frame 205, wherein the housing 101 is manufactured through an injection molding process, a through hole is formed in one end of the housing 101, the optical filter 102 is fixedly installed in the through hole, and the optical filter 102 is a 650nm narrow-band optical filter. The circuit board 107 is fixedly installed in the shell 101, the circuit board 107 is provided with an ARM, an FPGA, a 485 chip and the like, and the circuit board 107 is also electrically connected with a communication line 106.
The optical support 201 is fixedly installed in the shell 101, specifically, a second threaded hole 202 is formed in the optical support 201, a positioning groove is formed in one end of the optical support 201, the positioning grooves are arranged in a triangular mode, and a positioning lug is correspondingly arranged on the inner wall of the shell 101, so that the positioning lug can be inserted into the positioning groove, the optical support 201 is placed accurately, the position of the second threaded hole 202 is aligned to the position of the threaded hole formed in the shell 101, and the optical support 201 is fixedly installed in the shell 101 through a bolt.
The laser emitting assembly 109 and the optical receiving assembly 108 mounted on the optical bracket 201 are electrically connected to the circuit board 107, so that the laser emitted from the laser emitting assembly 109 is aligned with the laser emitting hole 103 formed in the filter 102. In order to reduce the volume of the sensor, the optical receiving component 108 is a CMOS component.
In order to adjust the position of the receiving lens group 110 according to different use scenes, one end of the adjusting frame 205 is hinged to the optical bracket 201, the other end of the adjusting frame 205 is fixedly connected with an arc-shaped scale plate 204, scales are arranged on the arc-shaped scale plate 204, and the arc-shaped scale plate 204 is slidably inserted into a sliding groove 207 arranged on the optical bracket 201. The receiving lens group 110 is fixedly mounted on the adjusting frame 205 by pins. The deflection angle of the receiving lens group 110 can be adjusted according to the actual use scene by rotating the adjusting frame 205, so that the sensor can be suitable for different scenes. When the adjusting bracket 205 rotates, the deflection angle of the adjusting bracket 205 can be determined by the reading of the arc-shaped scale 204. The arc-shaped scale plate 204 is also beneficial to improving the temperature property of the adjusting frame 205 and improving the accuracy of the sensor. An aspherical mirror is installed in the receiving lens group 110, so that the design requirement of reducing the size of the lens group to achieve a small laser displacement sensor is met.
And a first locking piece for preventing the adjusting frame 205 from rotating and a second locking piece for preventing the arc-shaped scale plate 204 from sliding are further arranged on the optical bracket 201. Specifically, a mounting post is provided on the optical mount 201, the mounting post including a light shaft portion 208 and a threaded portion 206. The adjustment bracket 205 is rotatably mounted at one end to the optical axis portion 208. The first locking member is a nut that is mounted on the threaded portion 206. When the position of the adjusting frame 205 needs to be locked, a rubber gasket is sleeved on the threaded portion 206, and then the nut is mounted on the threaded portion 206 and screwed down, so that the rubber gasket is in close contact with the adjusting frame 205, and the adjusting frame 205 cannot rotate through friction. The optical bracket 201 is provided with a first threaded hole communicated with the chute 207, and the second locking piece is a locking bolt 203, and the locking bolt 203 is installed in the first threaded hole. After the adjusting bracket 205 is adjusted to a proper position, the locking bolt 203 is tightened to make the lower end of the locking bolt 203 tightly contact with the arc-shaped scale plate 204 in the sliding groove 207, so as to restrict the arc-shaped scale plate 204 from sliding, and prevent the adjusting bracket 205 from rotating.
A cover plate 104 is detachably attached to the housing 101 by bolting, so that the sensor can be serviced by removing the cover plate 104.
An indicator lamp 105 electrically connected to a circuit board 107 is mounted on the housing 101 so that the operating state of the sensor can be observed.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A compact laser displacement sensor comprising:
the device comprises a shell (101), wherein a through hole is formed in one end of the shell (101);
a filter (102) installed in the through hole, the filter (102) being provided with a laser emission port (103);
a circuit board (107) mounted in the housing (101), the circuit board (107) being connected to the communication line (106);
it is characterized by also comprising:
the optical bracket (201) is arranged in the shell (101), and the optical bracket (201) is provided with a laser emitting component (109) and an optical receiving component (108) which are electrically connected with the circuit board (107);
one end of the adjusting frame (205) is hinged with the optical support (201), the other end of the adjusting frame is fixedly connected with an arc-shaped scale plate (204), and the arc-shaped scale plate (204) can be slidably inserted into a sliding groove (207) arranged in the optical support (201);
a receiving lens group (110) mounted on the adjusting frame (205);
the first locking piece is arranged on the optical bracket (201) and used for preventing the adjusting frame (205) from rotating;
and the second locking piece is arranged on the optical bracket (201) and used for preventing the arc-shaped scale plate (204) from sliding.
2. The compact laser displacement sensor according to claim 1, wherein: the optical bracket (201) is provided with an installation column, and the installation column comprises a light shaft part (208) and a thread part (206); one end of the adjusting frame (205) is rotatably arranged on the light shaft part (208).
3. The compact laser displacement sensor according to claim 2, wherein: the first locking piece is a nut and is arranged on the threaded part (206); a rubber gasket is arranged between the nut and the adjusting frame (205).
4. A compact laser displacement sensor according to claim 1 or 3, characterized in that: the optical bracket (201) is provided with a first threaded hole communicated with the sliding groove (207); the locking piece II is a locking bolt (203), and the locking bolt (203) is installed in the threaded hole I.
5. The compact laser displacement sensor according to claim 1, wherein: a cover plate (104) is detachably mounted on the shell (101).
6. The compact laser displacement sensor according to claim 1, wherein: the optical receiving component (108) is a CMOS component.
7. The compact laser displacement sensor according to claim 1, wherein: and the shell (101) is provided with an indicator light (105) electrically connected with the circuit board (107).
8. The compact laser displacement sensor according to claim 1, wherein: an aspherical mirror is arranged in the receiving mirror group (110).
9. The compact laser displacement sensor according to claim 1, wherein: a second threaded hole (202) is formed in the optical bracket (201), and a positioning groove is formed in one end of the optical bracket (201); a positioning lug is arranged on the inner wall of the shell (101); the optical bracket (201) is fixedly installed in the shell (101) through bolt connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121076961.2U CN215338183U (en) | 2021-05-19 | 2021-05-19 | Small laser displacement sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121076961.2U CN215338183U (en) | 2021-05-19 | 2021-05-19 | Small laser displacement sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215338183U true CN215338183U (en) | 2021-12-28 |
Family
ID=79547308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121076961.2U Active CN215338183U (en) | 2021-05-19 | 2021-05-19 | Small laser displacement sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215338183U (en) |
-
2021
- 2021-05-19 CN CN202121076961.2U patent/CN215338183U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110160445B (en) | Vision measuring instrument based on telecentric optics technology | |
| CN215338183U (en) | Small laser displacement sensor | |
| CN214844655U (en) | Calibration structure of back scattering smoke and dust appearance | |
| CN113324514B (en) | Rotating shaft debugging method and debugging assembly | |
| CN108957484B (en) | AGV dolly laser scanning safety arrangement | |
| CN112082515A (en) | Device and method for measuring axial eccentricity and temperature of generator | |
| CN214382979U (en) | Laser device integrating inner coaxial vision and power detection | |
| CN212110072U (en) | Detection assembly for optical multifunctional display machine | |
| CN102004390B (en) | Lens module detection system and detection method thereof | |
| CN201344992Y (en) | Optical conduction device capable of adjusting angular displacement of optical lens | |
| CN111007482B (en) | Laser radar device | |
| CN107727248A (en) | A kind of high-precision luminous power optical wavelength tester table | |
| CN114544151A (en) | Lens transmittance detection device and detection method thereof | |
| US3439987A (en) | Arrangement for measuring of angles,especially for measuring the angular position of wheels of a motor vehicle | |
| CN207351565U (en) | A kind of high accuracy luminous power optical wavelength tester table | |
| CN207132887U (en) | Electronical reading automatic compensated level | |
| CN219798253U (en) | Horizontal image measuring instrument with clamp | |
| CN219810839U (en) | Be applied to online measurement's laser ellipsometer | |
| CN211651646U (en) | double-CCD measuring device capable of improving precision and resolution | |
| CN218601466U (en) | Multi-light source induction type laser sensor | |
| CN110161486B (en) | Device for testing laser radar lens performance | |
| CN219572939U (en) | Ultra-large workpiece detection system based on telecentric imaging | |
| CN216645246U (en) | Passenger train wheel pair axle journal and dust guard seat laser measurement system | |
| CN220690413U (en) | Optical axis detection device of polaroid | |
| CN213990773U (en) | Camera center pin calibrator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |