Protective structure for cylindrical laser emitter

Abstract

The application relates to the technical field of laser emitters, and provides a protection structure of a cylindrical laser emitter, which comprises a protection main body, an axially-through laser emission channel is arranged in the protection main body, a plurality of sensor units are arranged around the laser emission channel and are uniformly embedded in the outer peripheral wall of the protection main body and are used for detecting obstacles, a shielding mechanism is arranged on the side wall of the laser emission channel and comprises a rotatable rotating shielding plate and a driving assembly used for driving the rotating shielding plate, the rotating shielding plate has a first position in which the rotating shielding plate is accommodated in the side wall of the laser emission channel and a second position in which the rotating shielding plate rotates into the laser emission channel and blocks the laser emission channel, and a signal processing module is electrically connected between the sensor units and the driving assembly. In the scheme, the sensor units can perceive potential risks, the information processing module controls the driving assembly to work, the rotating shielding plate is rotated from the first position to the second position, the laser light path is actively cut off, and the burning of the laser on the equipment or the workpiece is eliminated.

Description

Technical Field

[0001] This application relates to the field of laser emitter technology, and more particularly to a protective structure for a cylindrical laser emitter. Background Technology

[0002] In laser repair and other processing, the laser emitter needs to move and position frequently in a complex working environment to perform precision machining on damaged panels. Because the workspace often contains multiple devices, panels to be repaired, and their clamping tools, the space is very compact. If the laser emitter collides with surrounding objects during movement, it can cause the laser beam path to deviate from its preset trajectory and irradiate surrounding cables or equipment, resulting in ablation and damage, thus affecting the safety of the entire production line.

[0003] Therefore, how to provide a protective structure to prevent the above situation from occurring is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] This application provides a protective structure for a cylindrical laser emitter that can actively detect collision risks and quickly cut off the laser beam path before physical contact occurs, thus preventing laser burns to equipment or workpieces.

[0005] The technical solution adopted in this application is as follows: A protective structure for a cylindrical laser emitter includes: The main body of the protection structure has an axially continuous laser emission channel inside. Several sensor units are arranged around the laser emission channel and uniformly embedded in the outer peripheral wall of the protective body for detecting obstacles; A shielding mechanism is provided on the side wall of the laser emission channel, including a rotatable rotating shielding plate and a driving assembly for driving the rotating shielding plate. The rotating shielding plate has a first position that is housed within the side wall of the laser emission channel, and a second position that rotates in and blocks the laser emission channel. The signal processing module is located inside the protection body and is electrically connected between the sensor unit and the drive component.

[0006] Preferably, the protective body comprises, from the outside to the inside, an integrally formed outer buffer layer, an intermediate structural layer, and an inner laser-transmitting layer.

[0007] Preferably, the outer buffer layer is made of an elastic material.

[0008] Preferably, the sensor unit is embedded in the intermediate structural layer, and the sensor unit is an infrared sensor or an acoustic sensor.

[0009] Preferably, the drive assembly includes a motor and a transmission gear set, and the output shaft of the motor is connected to the rotating shield via the transmission gear set.

[0010] Preferably, the rotating shield is made of metal and has a laser-absorbing coating on its surface facing the laser incident side.

[0011] Preferably, the protective body has a mounting cavity for accommodating the laser emitter, and the laser emission channel is located on the axis of the mounting cavity.

[0012] Preferably, the inner wall of the mounting cavity is provided with an axial keyway for engaging with the positioning key on the laser emitter.

[0013] Preferably, the inner wall of the mounting cavity is provided with a heat-conducting layer, and the outer wall of the protective body is provided with a heat dissipation structure corresponding to the position of the mounting cavity.

[0014] Preferably, the structure further includes a status indicator light, which is disposed on the outer peripheral wall of the protective body and electrically connected to the signal processing module.

[0015] According to the specific embodiments provided in this application, the following technical effects are disclosed: This application provides a protective structure for a cylindrical laser emitter, comprising: a protective body with an axially extending laser emission channel inside; several sensor units surrounding the laser emission channel and uniformly embedded in the outer peripheral wall of the protective body for detecting obstacles; a shielding mechanism located on the side wall of the laser emission channel, including a rotatable rotating shield and a driving assembly for driving the rotating shield, the rotating shield having a first position housed within the side wall of the laser emission channel and a second position rotating in and blocking the laser emission channel; and a signal processing module located inside the protective body and electrically connected between the sensor units and the driving assembly. Through the arrangement of the sensor units, shielding mechanism, and signal processing module, the solution allows the sensor units to detect potential risks before a physical collision occurs. The information processing module controls the driving assembly to rotate the rotating shield from the first position to the second position, actively cutting off the laser path and preventing burns to the equipment or workpiece caused by the laser, thus improving the safety of the laser emitter. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the rotating baffle plate in the first position according to an embodiment of this application; Figure 2 This is a schematic diagram of the rotating baffle plate in the second position provided in the embodiment of this application.

[0018] Figure label: 1. Protective body; 2. Rotating shield; 3. Drive assembly; 4. Laser emitter; 10. Laser emission channel; 11. Outer buffer layer; 12. Intermediate structural layer; 13. Inner laser light-transmitting layer; 14. Mounting cavity; 20. First position; 21. Second position. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] As described in the background section, in laser repair and other processing, the laser emitter needs to move and position frequently in a complex working environment to perform precision machining on damaged panels. Since the workspace often contains multiple devices, panels to be repaired, and their clamping tools, the space is very compact. If the laser emitter collides with surrounding objects during movement, the laser beam path may deviate from its preset trajectory and irradiate surrounding cables or equipment, causing ablation and damage, thus affecting the safety of the entire production line.

[0021] Based on this, this application provides a protective structure for a cylindrical laser emitter, aiming to solve the technical problems of equipment burns and low safety caused by laser optical path deviation in the prior art.

[0022] The embodiments of this application are described in detail below with reference to the accompanying drawings.

[0023] A protective structure for a cylindrical laser emitter, reference Figure 1The structure includes: a protective body 1, which has an axially extending laser emission channel 10 inside; several sensor units, which surround the laser emission channel 10 and are uniformly embedded in the outer peripheral wall of the protective body 1, for detecting obstacles; a blocking mechanism, which is located on the side wall of the laser emission channel 10, including a rotatable rotating blocking plate 2 and a driving assembly 3 for driving the rotating blocking plate 2, the rotating blocking plate 2 having a first position 20 housed in the side wall of the laser emission channel 10, and a second position 21 that rotates in and blocks the laser emission channel 10; and a signal processing module, which is located inside the protective body 1 and electrically connected between the sensor units and the driving assembly 3.

[0024] The cylindrical laser emitter 4 has its laser head aligned with the laser emission channel 10, and the laser beam path is parallel to the axis of the laser emission channel 10. A sensor unit embedded in the outer peripheral wall of the protective body 1 detects the distance between the laser emitter 4 and obstacles or specific equipment. When any sensor unit detects that the distance between the laser emitter and the object exceeds a preset threshold, it indicates a collision risk between the laser emitter 4 and the object. The signal processing module then controls the drive assembly 3 to start, causing the rotating baffle 2 to rotate from the first position 20 to the second position 21, cutting off the laser beam path and preventing laser beam path deviation caused by collision between the laser emitter 4 and the object, thus ensuring the safety of the equipment. This preventative protection avoids safety accidents caused by laser equipment deflection due to collisions in complex working environments.

[0025] As a preferred embodiment, refer to Figure 1 and Figure 2 The protective body 1 consists of an integrally formed outer buffer layer 11, a middle structural layer 12, and an inner laser light-transmitting layer 13, from the outside to the inside.

[0026] The outer buffer layer 11 can be made of elastic material for physical protection. In the event of an unavoidable collision, it absorbs and disperses the impact of the collision to protect the internal laser emitter 4. The middle structural layer 12 mainly serves as structural support and bears the load. The inner laser light-transmitting layer 13 is arranged around the laser emission channel 10 to reduce the energy loss of the laser during transmission.

[0027] In a preferred embodiment, the sensor unit is embedded in the intermediate structural layer 12, and the sensor unit adopts an infrared sensor or an acoustic sensor.

[0028] The intermediate structural layer 12, which bears the load, has a certain degree of rigidity. Therefore, the sensor unit is placed in the intermediate structural layer 12 to ensure that the detection reference surface of the sensor unit is not changed by external vibration. For infrared sensors, optical through-holes need to be opened as windows in the outer buffer layer 11 and the intermediate structural layer 12 at the corresponding positions to ensure infrared emission and reception. For acoustic sensors, acoustic channels need to be opened in the outer buffer layer 11 and the intermediate structural layer 12 at the corresponding positions to ensure that acoustic waves can be transmitted.

[0029] In a preferred embodiment, the drive assembly 3 includes a motor and a transmission gear set, with the output shaft of the motor connected to the rotating baffle 2 via the transmission gear set.

[0030] The cooperation between the motor and the transmission gear set ensures that the rotating shield 2 can be quickly rotated from the first position 20 to the second position 21, which meets the instantaneous requirements of the protection structure and avoids equipment burns caused by the laser emitter 4 colliding and the laser beam path deflection due to failure to cut off the laser beam path in time.

[0031] In a preferred embodiment, the rotating shield 2 is made of metal and has a laser-absorbing coating on its surface facing the laser incident side.

[0032] The use of metal materials ensures that the rotating shield 2 has high mechanical strength, and the laser absorption coating can convert the light energy of the laser into heat energy and reduce laser reflection, thus avoiding burn-through caused by local overheating.

[0033] In a preferred embodiment, the protective body 1 is provided with a mounting cavity 14 for accommodating the laser emitter 4, and the laser emission channel 10 is located on the axis of the mounting cavity 14.

[0034] The mounting cavity 14 encloses the laser emitter 4 within the protective body 1. By setting the mounting cavity 14 and the laser emission channel 10 on the same axis, it is ensured that the laser path of the laser emitter 4 coincides with the axis of the laser emission channel 10 after it is installed.

[0035] In a preferred embodiment, the inner wall of the mounting cavity 14 is provided with an axial keyway for engaging with the positioning key on the laser emitter 4.

[0036] The keyway and the positioning key work together to achieve circumferential positioning and restrict the circumferential rotation of the laser emitter 4 within the mounting cavity 14.

[0037] In a preferred embodiment, the inner wall of the mounting cavity 14 is provided with a heat-conducting layer, and the outer wall of the protective body 1 is provided with a heat dissipation structure corresponding to the position of the mounting cavity 14.

[0038] The heat-conducting layer can transfer the heat from the outer shell of the laser emitter 4 to the heat dissipation structure on the protective body 1. The heat dissipation structure can use heat dissipation fins to increase the contact area with the air.

[0039] In a preferred embodiment, the structure also includes a status indicator light, which is disposed on the outer peripheral wall of the protective body 1 and electrically connected to the signal processing module.

[0040] Specifically, when the rotating shield 2 is in the first position 20, the status indicator light is green, and when the rotating shield 2 is in the second position 21, the status indicator light is red to warn the staff.

[0041] For a complete example of its structure and operation, please refer to... Figure 1 and Figure 2 The protective body 1 adopts a three-layer structure, consisting of a thick outer buffer layer 11, an alloy intermediate structural layer 12, and a glass inner laser-transmitting layer 13, from the outside to the inside. A laser emission channel 10 is located at the center of the protective body 1, with storage slots on both sides of the channel. A rotating shielding plate 2 is housed within each storage slot. The rotating shielding plate 2, facing the laser incident side, is coated with a black ceramic laser-absorbing coating. The drive assembly 3 uses a micro-motor and a transmission gear set to rotate the rotating shielding plate 2 from the storage slot at the first position 20 to the storage slot at the second position 21. The protective body 1 has a mounting cavity 14, with a keyway on its inner wall for engaging with the positioning key of the laser emitter 4 to achieve circumferential positioning. A heat-conducting layer is located within the mounting cavity 14, and the protective body 1 has a ring-shaped heat dissipation structure on its outer wall corresponding to the position of the heat-conducting layer. The signal processing module is integrated inside the protective body 1, connecting all sensor units, drive assemblies, and status indicator lights via a flexible circuit board. During operation, the sensor unit continuously monitors the surrounding environment. When any sensor detects an obstacle entering the safe distance, the signal processing module sends a command to the drive component 3, causing the rotating shield 2 to rotate from the storage slot at the first position 20 to the storage slot at the second position 21, completely blocking the laser beam path. At the same time, the status indicator light changes from green to red to warn the operator. After the obstacle is removed, the rotating shield 2 resets and rotates from the storage slot at the second position 21 back to the storage slot at the first position 20, restoring the laser beam path to normal.

[0042] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0044] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A protective structure for a cylindrical laser emitter, characterized in that, The structure includes: The protective body (1) has an axially continuous laser emission channel (10) inside. Several sensor units are arranged around the laser emission channel (10) and uniformly embedded in the outer peripheral wall of the protective body (1) for detecting obstacles; The shielding mechanism is located on the side wall of the laser emission channel (10) and includes a rotatable rotating shielding plate (2) and a driving assembly (3) for driving the rotating shielding plate (2). The rotating shielding plate (2) has a first position (20) that is housed in the side wall of the laser emission channel (10) and a second position (21) that rotates into and blocks the laser emission channel (10). The signal processing module is located inside the protection body (1) and is electrically connected between the sensor unit and the drive component (3).

2. The protective structure for the cylindrical laser emitter according to claim 1, characterized in that, The protective body (1) consists of an integrally formed outer buffer layer (11), an intermediate structural layer (12), and an inner laser light-transmitting layer (13) from the outside to the inside.

3. The protective structure for the cylindrical laser emitter according to claim 2, characterized in that, The outer buffer layer (11) is made of an elastic material.

4. The protective structure for the cylindrical laser emitter according to claim 2, characterized in that, The sensor unit is embedded in the intermediate structural layer (12), and the sensor unit adopts an infrared sensor or an acoustic sensor.

5. The protective structure for the cylindrical laser emitter according to claim 1, characterized in that, The drive assembly (3) includes a motor and a transmission gear set, and the output shaft of the motor is connected to the rotating shield (2) through the transmission gear set.

6. The protective structure for the cylindrical laser emitter according to claim 1 or 5, characterized in that, The rotating shield (2) is made of metal and has a laser-absorbing coating on its surface facing the laser incident side.

7. The protective structure for the cylindrical laser emitter according to claim 1, characterized in that, The protective body (1) has a mounting cavity (14) for accommodating the laser emitter (4), and the laser emission channel (10) is located on the axis of the mounting cavity (14).

8. The protective structure for the cylindrical laser emitter according to claim 7, characterized in that, The inner wall of the mounting cavity (14) is provided with an axial keyway for cooperating with the positioning key on the laser emitter (4).

9. The protective structure for the cylindrical laser emitter according to claim 7, characterized in that, The inner wall of the mounting cavity (14) is provided with a heat-conducting layer, and the outer wall of the protective body (1) is provided with a heat dissipation structure corresponding to the position of the mounting cavity (14).

10. The protective structure for the cylindrical laser emitter according to claim 1, characterized in that, The structure also includes a status indicator light, which is located on the outer peripheral wall of the protective body (1) and electrically connected to the signal processing module.

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