CN216791228U - High-precision laser sensor - Google Patents

Abstract

The utility model discloses a high-precision laser sensor, which comprises a sensor shell and an inner frame, wherein one side of the sensor shell is connected with a first protection plate, the other side of the sensor shell is connected with a second protection plate, one ends of the first protection plate and the second protection plate are respectively provided with a reflector, the top and the bottom of the sensor shell are respectively provided with a spring button limiting hole, a plurality of heat-radiating aluminum plates are arranged on the first protection plate and the second protection plate, both ends of the first protection plate and the second protection plate are respectively provided with a threaded column, the threaded columns are provided with threaded holes, the laser sensor has long service life, large hardness and good heat-radiating effect, and high precision, can quickly receive reflected light, improves the measurement precision, does not need to disassemble the whole shell when the laser sensor is replaced, and only needs to replace an electronic element in the laser sensor, the dismouting is simple and convenient, and the flexibility is strong, makes things convenient for people to operate and use.

Description

A high-precision laser sensor

technical field

The utility model relates to the field of laser sensors, in particular to a high-precision laser sensor.

Background technique

Laser Sensors: Sensors that utilize laser technology for measurement. It consists of a laser, a laser detector and a measuring circuit. Laser sensor is a new type of measuring instrument. Its advantages are that it can realize non-contact long-distance measurement, fast speed, high precision, large range, strong anti-light and electrical interference ability, etc. When the laser sensor is working, the laser emitting diode is first aimed at the target. emit laser pulses. After being reflected by the target, the laser light is scattered in all directions. Part of the scattered light returns to the sensor receiver, where it is picked up by the optical system and imaged onto the avalanche photodiode. Avalanche photodiode is an optical sensor with an internal amplification function, so it can detect extremely weak light signals and convert them into corresponding electrical signals; laser sensors are widely used, but the existing laser sensors have relatively simple functions. The service life is short, and the sensor will be damaged after long-term use, causing the sensor to stop working. Moreover, the existing laser sensor has low accuracy and weak reception of reflected light, which affects the measurement accuracy. When the existing laser sensor needs to be replaced , the entire laser sensor needs to be replaced, the cost is high, the disassembly and assembly efficiency is low, and it is inconvenient for people to operate and use, so a high-precision laser sensor is provided.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a high-precision laser sensor in view of the defects of the prior art, so as to solve the problems raised by the above-mentioned background technology.

In order to achieve the above purpose, the present invention provides the following technical solutions: a high-precision laser sensor, comprising a sensor shell and an inner frame, one side of the sensor shell is connected with a first protective plate, and the other side of the sensor shell is connected A second protective plate is connected, one end of the first protective plate and the second protective plate are equipped with a reflector, the top and bottom of the sensor shell are provided with spring button limit holes, the first protective plate and Several heat-dissipating aluminum plates are installed on the second protective plate, threaded posts are installed on both ends of the first protective plate and the second protective plate, the threaded posts are provided with threaded holes, and one end of the sensor housing is provided with The first objective lens hole, the bottom of the first objective lens hole is provided with a second objective lens hole, the interior of the sensor housing is provided with an inner frame, the interior of the inner frame is installed with a control motherboard, and one end of the inner frame is installed with a The sealing plate is connected with a power cord, one end of the power cord is connected with a connector, the other end of the inner frame is mounted with a laser emitting objective lens, and the bottom of the laser emitting objective lens is mounted with a laser receiving objective lens.

As a preferred technical solution of the present invention, the first protective plate and the second protective plate are respectively welded on the side surface of the sensor housing, and the heat dissipation aluminum plate is welded on the first protective plate and the second protective plate. The threaded column is welded on both ends of the first protective plate and the second protective plate, and the top of the threaded column is provided with a counterbore.

As a preferred technical solution of the present invention, the reflector is bonded to one end of the first protective plate and the second protective plate through glass glue, and the sealing plate is welded to one end of the inner frame.

As a preferred technical solution of the present invention, the spring button is installed on the top and bottom of the inner frame by bolts, the sealing plate is fixed on one end of the inner frame by screws, and the connector is connected to the control unit through the power cord. The main board is connected, and the control main board is electrically connected with the emitting element in the laser emitting objective lens and the receiving element in the laser receiving objective lens.

As a preferred technical solution of the present invention, the inner frame is fixedly connected to the sensor housing through a spring button and a limit hole of the spring button.

As a preferred technical solution of the present invention, the sealing plate is sealed and connected to one end of the sensor housing through a sealing gasket.

The beneficial effects of the utility model are: the laser sensor has a long service life, the hardness of the entire shell is large, the heat dissipation effect is good, and the precision of the entire laser sensor is high, the reflected light can be quickly received, and the measurement accuracy is improved, and the laser sensor is replaced. There is no need to disassemble the entire shell when the laser sensor is used, only the electronic components inside the laser sensor can be replaced, the disassembly and assembly are simple and convenient, the flexibility is strong, and it is convenient for people to operate and use.

Description of drawings

Fig. 1 is the dismantling structure schematic diagram of the present utility model;

FIG. 2 is a schematic view of the assembled structure of the utility model.

In the figure: sensor shell 1, inner frame 2, first protective plate 3, second protective plate 4, heat dissipation aluminum plate 5, threaded post 6, threaded hole 7, first objective lens hole 8, second objective lens hole 9, reflector 10 , spring button limit hole 11 , control main board 12 , spring button 13 , laser emission objective lens 14 , laser receiving objective lens 15 , power cord 16 , connector 17 , sealing plate 18 .

Detailed ways

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the protection scope of the present invention can be more clearly defined.

Embodiment: Please refer to Figure 1-2, the present utility model provides a technical solution: a high-precision laser sensor, comprising a sensor housing 1 and an inner frame 2, one side of the sensor housing 1 is connected with a first protective plate 3, The other side of the sensor housing 1 is connected with a second protective plate 4, one end of the first protective plate 3 and the second protective plate 4 are both mounted with a reflector 10, and the top and bottom of the sensor housing 1 are provided with spring button limit holes 11. Several heat-dissipating aluminum plates 5 are installed on the first protective plate 3 and the second protective plate 4. Both ends of the first protective plate 3 and the second protective plate 4 are equipped with threaded posts 6, and the threaded posts 6 are provided with threads. Hole 7, one end of the sensor housing 1 is provided with a first objective lens hole 8, the bottom of the first objective lens hole 8 is provided with a second objective lens hole 9, the interior of the sensor housing 1 is provided with an inner frame 2, and the interior of the inner frame 2 is provided with a control The main board 12, one end of the inner frame 2 is installed with a sealing plate 18, the sealing plate 18 is connected with a power cord 16, one end of the power cord 16 is connected with a connector 17, the other end of the inner frame 2 is installed with a laser emission objective lens 14, the laser emission A laser receiving objective lens 15 is mounted on the bottom of the objective lens 14 .

The first protective plate 3 and the second protective plate 4 are respectively welded on the side of the sensor housing 1, the heat dissipation aluminum plate 5 is welded on the first protective plate 3 and the second protective plate 4, and the threaded column 6 is welded on the first protective plate 3 and the second protective plate 4. On both ends of the second protective plate 4 , the top of the threaded column 6 is provided with countersunk holes.

The reflector 10 is bonded on one end of the first protective plate 3 and the second protective plate 4 through glass glue, and the sealing plate 18 is welded on one end of the inner frame 2, and the first protective plate 3 and the second protective plate 4 are used to improve the overall performance. The hardness also increases the heat dissipation effect, and the reflector 10 can be used to gather the light, which is convenient for the receiving element to receive quickly.

The spring button 13 is installed on the top and bottom of the inner frame 2 by bolts, the sealing plate 18 is fixed on one end of the inner frame 2 by screws, the connector 17 is connected with the control main board 12 through the power cord 16, and the control main board 12 is connected with the laser emission objective lens The transmitting element in 14 is electrically connected with the receiving element in the laser receiving objective lens 15 .

The inner frame 2 is fixedly connected with the sensor housing 1 through the spring button 13 and the spring button limit hole 11 , and the disassembly and assembly are simple and convenient.

The sealing plate 18 is sealedly connected to one end of the sensor housing 1 through a sealing gasket, so as to improve the sealing performance.

Working principle: a high-precision laser sensor, including a sensor shell 1 and an inner frame 2. When in use, the entire sensor shell 1 is fixed in a proper position by bolts through the threaded column 6, and then the inner frame 2 is inserted. Go to the inside of the sensor housing 1, let the spring buttons 13 on the top and bottom of the inner frame 2 be stuck on the spring button limit holes 11, and let the gasket on the sealing plate 18 press one end of the sensor housing 1, so that the sensor housing 1 and the The inner frame 2 is fused together, and then when working, the emitting element in the laser emitting objective lens 14 emits laser light to the object, and the light reflected on the object will reach the mirrors 10 on both sides of the laser receiving objective lens 15, and the mirror 10 is used to reflect The returned weak light is concentrated, thereby improving the receiving speed and sensitivity of the receiving element inside the laser receiving objective 15, and improving the measurement accuracy. When it needs to be replaced, directly press the spring button 13 to pull out the inner frame 2 from the sensor housing 1, and then Just replace it with a new one. When the sensor is working, the electronic components on the control motherboard 12 can also be dissipated through the heat dissipation aluminum plate 5, so as to improve the service life of the sensor, and it also has the function of protection. impact performance.

The laser sensor has a long service life, high hardness of the entire shell, good heat dissipation effect, and high precision of the entire laser sensor, which can quickly receive the reflected light and improve the measurement accuracy. It is only necessary to replace the electronic components inside the laser sensor, the disassembly and assembly are simple and convenient, the flexibility is strong, and it is convenient for people to operate and use.

The above examples only represent several embodiments of the present utility model, and the descriptions thereof are specific and detailed, but should not be construed as a limitation on the scope of the utility model patent. It should be pointed out that for those of ordinary skill in the art, some modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims (6)

1. A high-precision laser sensor comprises a sensor shell (1) and an inner frame (2), and is characterized in that: one side of the sensor shell (1) is connected with a first protection plate (3), the other side of the sensor shell (1) is connected with a second protection plate (4), reflectors (10) are installed at one ends of the first protection plate (3) and the second protection plate (4), spring button limiting holes (11) are arranged at the top and the bottom of the sensor shell (1), a plurality of heat dissipation aluminum plates (5) are installed on the first protection plate (3) and the second protection plate (4), threaded columns (6) are installed at two ends of the first protection plate (3) and the second protection plate (4), threaded holes (7) are formed in the threaded columns (6), a first objective hole (8) is formed in one end of the sensor shell (1), a second objective hole (9) is formed in the bottom of the first objective hole (8), an inner frame (2) is arranged in the sensor shell (1), the interior mounting of interior frame (2) has control mainboard (12), closing plate (18) are installed to the one end of interior frame (2), be connected with power cord (16) on closing plate (18), the one end of power cord (16) is connected with connector (17), laser emission objective (14) are installed to the other end of interior frame (2), laser receiving objective (15) are installed to the bottom of laser emission objective (14).

2. A high precision laser sensor according to claim 1, characterized in that: first guard plate (3) and second guard plate (4) weld respectively on the side of sensor housing (1), heat dissipation aluminum plate (5) weld on first guard plate (3) and second guard plate (4), screw thread post (6) weld on the both ends of first guard plate (3) and second guard plate (4), the top of screw thread post (6) is equipped with the counter bore.

3. A high precision laser sensor according to claim 1, characterized in that: the reflector (10) is adhered to one ends of the first protection plate (3) and the second protection plate (4) through glass cement, and the sealing plate (18) is welded to one end of the inner frame (2).

4. A high precision laser sensor according to claim 1, characterized in that: the spring button (13) is installed on the top and the bottom of the inner frame (2) through bolts, the sealing plate (18) is fixed to one end of the inner frame (2) through screws, the connector (17) is connected with the control main board (12) through a power line (16), and the control main board (12) is electrically connected with a transmitting element in the laser emission objective lens (14) and a receiving element in the laser receiving objective lens (15).

5. A high precision laser sensor according to claim 1, characterized in that: the inner frame (2) is fixedly connected with the sensor shell (1) through a spring button (13) and a spring button limiting hole (11).

6. A high precision laser sensor according to claim 1, characterized in that: the sealing plate (18) is connected with one end of the sensor shell (1) in a sealing mode through a sealing gasket.

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