A laser detection device

Abstract

The utility model belongs to laser quality detection device technical field discloses a kind of laser detection devices, the laser detection device includes laser head subassembly, shell, connecting piece, light splitting subassembly and imaging assembly, laser head subassembly includes laser head and plunger, plunger is installed in laser head, shell has accommodating cavity, shell is equipped with light hole, light hole is communicated with accommodating cavity, connecting piece has avoiding space, avoiding space is through along vertical direction and is opposite with light hole, connecting piece is located above shell and is fixedly connected with shell, connecting piece is equipped with counterbore, plunger can be jointed in counterbore, light splitting subassembly is installed in the accommodating cavity of shell, imaging assembly is installed on the outer wall of shell, light splitting subassembly can reflect part of the light beam emitted by laser head to imaging assembly.The utility model provides a kind of laser detection device, can guarantee to the accuracy of centering, improve detection efficiency, support laser centering, can be adapted to use in the laser head of no indicating light laser, and strong adaptability.

Description

Technical Field

[0001] This utility model relates to the field of laser quality inspection device technology, and in particular to a laser inspection device. Background Technology

[0002] With the rapid development of industrial manufacturing, precision measurement, and medical equipment, laser technology, with its advantages of high directionality, high monochromaticity, and high brightness, has been widely used in various inspection scenarios. As the core equipment for achieving precise laser inspection, the alignment accuracy of laser inspection devices directly determines the reliability of inspection results, playing a crucial role in improving product quality, increasing production efficiency, and expanding the application boundaries of laser technology. Traditional inspection technologies often rely on manual experience or simple optical aids, resulting in time-consuming alignment and unstable accuracy, making it difficult to meet the real-time inspection needs of high-precision manufacturing scenarios.

[0003] Currently, most mainstream laser inspection devices on the market use red light alignment to achieve alignment assistance. These devices mainly rely on a red light indicator laser to emit red light, and the operator completes the laser inspection alignment operation by observing the projection position of the red light on the target.

[0004] However, existing laser detection devices using red light alignment have several significant drawbacks. Firstly, although the red indicator laser and the main detection laser are both laser sources, their optical designs are axially offset, and their wavelengths and divergence angles differ significantly. This results in inconsistencies in the position and size of the red light-projected spot and the actual focused spot of the main detection laser. Consequently, the alignment operation performed by the operator based on the red light cannot guarantee the actual alignment accuracy of the detection laser, thus affecting the accuracy of the detection results. Secondly, some industrial-grade lasers, in order to increase output power or integration, adopt a modular structure without an indicator light. Existing auxiliary devices that only support red light alignment cannot recognize or adapt to laser heads without an indicator light, resulting in limited device compatibility and significantly restricting the application range of the device. Utility Model Content

[0005] The purpose of this invention is to provide a laser detection device that can ensure centering accuracy, improve detection efficiency, support laser centering, and be compatible with laser heads without indicator lasers, thus having stronger adaptability.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A laser detection device is provided, comprising:

[0008] A laser head assembly, comprising a laser head and a plunger, wherein the laser head has an internal gas passage and the plunger is installed on the laser head and is used to block the gas passage;

[0009] The housing has a receiving cavity and a light-transmitting hole that communicates with the receiving cavity. The light-transmitting hole is used to allow light beams from the laser head to pass through.

[0010] The connector has a clearance space that runs vertically through the space and is directly opposite the light-transmitting hole. The connector is located above the housing and is fixedly connected to the housing. The side of the connector away from the housing has a countersunk hole, which is correspondingly set with a plunger. The plunger can be engaged in the countersunk hole so that the laser head is located in the clearance space.

[0011] The beam splitter is installed inside the housing cavity, while the imaging component is installed on the outer wall of the housing. The beam splitter can reflect a portion of the beam emitted by the laser head to the imaging component, which is used to detect the beam quality.

[0012] As one possible implementation of the aforementioned laser detection device, the housing is equipped with a first protective cover, which is detachably installed on the housing and is used to cover the light-transmitting hole.

[0013] As one possible implementation of the aforementioned laser detection device, the beam splitting assembly includes a beam splitter mount and a beam splitter. The beam splitter mount is installed on the inner wall of the receiving cavity, and the beam splitter is fixed to the beam splitter mount.

[0014] As one possible implementation of the aforementioned laser detection device, the beam splitter is set at a 45° angle to the incident direction of the beam emitted by the laser head.

[0015] As one possible implementation of the aforementioned laser detection device, the laser detection device further includes a protective mirror, which is installed on the inner wall of the receiving cavity and located above the beam splitter mount.

[0016] As one possible implementation of the aforementioned laser detection device, a second protective cover is provided on the outer wall of the housing. The second protective cover is at the same height as the protective mirror. One end of the second protective cover is connected to the housing by a pin, and the other end of the second protective cover is threadedly connected to the housing by a fastener.

[0017] As one possible implementation of the aforementioned laser detection device, the imaging component includes a camera and a lens. The camera is mounted on the outer wall of the housing, and the lens is connected to the light-incident end of the camera. The lens extends into the receiving cavity and is directly opposite to the reflected light path of the beam splitting component.

[0018] As one possible implementation of the aforementioned laser detection device, the imaging component further includes an adapter ring, which is threadedly connected to the light-incident end of the camera, and the lens is mounted on the end of the adapter ring away from the camera.

[0019] As one possible implementation of the aforementioned laser detection device, the imaging component also includes a filter, which is fixed to the end of the adapter ring away from the lens.

[0020] As one possible implementation of the aforementioned laser detection device, the imaging component also includes a camera housing, which is disposed on the outside of the camera.

[0021] The beneficial effects of this utility model are:

[0022] This utility model provides a laser detection device. First, the laser head assembly and connector are assembled. The plunger mounted on the laser head is aligned with the countersunk hole on the connector, and the plunger and countersunk hole engage to achieve rapid positioning. At this point, the laser head is precisely positioned within the vertical through-hole clearance of the connector. Due to the precise fit between the plunger and countersunk hole, the emission center of the laser head automatically aligns with the center of the light-transmitting hole on the housing, completing the alignment and calibration of the device. Simultaneously, the gas path inside the laser head is reliably sealed by the plunger, ensuring gas path sealing performance. Then, the laser head is activated, and the emitted beam propagates along the aligned axial direction, passing sequentially through the clearance space of the connector and the light-transmitting hole on the housing opposite the clearance space, precisely entering the receiving cavity inside the housing. The beam entering the receiving cavity illuminates a pre-installed beam splitter, which divides the beam into two parts according to a preset ratio. One part of the beam is reflected to an imaging component also installed within the receiving cavity. After receiving the reflected beam, the imaging component detects the beam's quality parameters, such as the beam's spot shape, energy distribution, and divergence angle, and converts the detection data into a recognizable signal, thus completing the laser beam quality detection process.

[0023] This device innovatively employs a snap-fit ​​positioning structure between a plunger and a countersunk hole, replacing the traditional, complex centering adjustment mechanism. The combination of the plunger and the countersunk hole offers inherent advantages in positioning accuracy, enabling automatic and precise centering of the laser head and the light-transmitting hole in the housing. This effectively avoids centering errors caused by manual adjustment, ensuring that the beam always travels along the preset path to the beam splitter, providing a core guarantee for the accuracy of subsequent beam quality testing.

[0024] The snap-fit ​​connection between the plunger and the countersunk hole integrates the installation and alignment of the laser head assembly, simplifying the operation process and eliminating the need for tedious alignment and debugging by professional personnel, thus significantly reducing the assembly preparation time of the device. Compared to traditional alignment methods that rely on bolt fixing or multiple calibrations, this structure significantly simplifies the operation steps, greatly improving the efficiency of pre-test preparation and the turnaround speed of the overall testing process.

[0025] The alignment structure of this device does not rely on the indicator light of the laser head itself; reliable alignment can be achieved through precise mechanical coordination. This feature allows it to break through the dependence of traditional detection devices on lasers with indicator lights, and it can be perfectly adapted to laser heads without indicator lights, thus broadening the device's applicability and meeting the detection needs of different types of laser equipment. Attached Figure Description

[0026] Figure 1 This is a first structural schematic diagram of the laser detection device provided in this embodiment of the utility model;

[0027] Figure 2 This is a schematic diagram of the second structure of the laser detection device provided in this embodiment of the utility model;

[0028] Figure 3 This is a first cross-sectional view of the laser detection device provided in this embodiment of the utility model;

[0029] Figure 4 This is a second cross-sectional view of the laser detection device provided in this embodiment of the present invention.

[0030] In the diagram: 1. Laser head; 2. Plunger; 3. Housing; 4. Connector; 5. Countersunk hole; 6. First protective cover; 7. Beam splitter mount; 8. Beam splitter; 9. Protective lens; 10. Second protective cover; 11. Fastener; 12. Camera; 13. Camera mounting plate; 14. Lens; 15. Adapter ring; 16. Filter; 17. Camera housing; 18. Circuit board; 19. Auxiliary light; 20. Communication cable; 21. Pressure cover. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0032] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0035] like Figure 1-4 As shown, an embodiment of this utility model provides a laser detection device, including a laser head assembly, a housing 3, a connector 4, a beam splitting assembly, and an imaging assembly. The laser head assembly includes a laser head 1 and a plunger 2. The laser head 1 has an internal gas path, and the plunger 2 is installed on the laser head 1 and is used to block the gas path. The housing 3 has a receiving cavity and a light-transmitting hole that communicates with the receiving cavity. The light-transmitting hole is used to allow the light beam from the laser head 1 to pass through. The connector 4 has a clearance space that extends vertically and is directly opposite the light-transmitting hole. The connector 4 is located above the housing 3 and is fixedly connected to the housing 3. A countersunk hole 5 is provided on the side of the connector 4 away from the housing 3. The countersunk hole 5 is correspondingly provided with the plunger 2, and the plunger 2 can be engaged in the countersunk hole 5 so that the laser head 1 is located within the clearance space. The beam splitting assembly is installed in the receiving cavity of the housing 3, and the imaging assembly is installed on the outer wall of the housing 3. The beam splitting assembly can reflect a portion of the light beam emitted by the laser head 1 to the imaging assembly, which is used to detect the light beam quality.

[0036] First, the laser head assembly and connector 4 are assembled. The plunger 2 installed on the laser head 1 is aligned with the countersunk hole 5 on the connector 4. The quick positioning of the two is achieved through the snap-fit ​​between the plunger 2 and the countersunk hole 5. At this time, the laser head 1 is exactly located within the vertical through clearance space of the connector 4. Due to the precise fit between the plunger 2 and the countersunk hole 5, the emission center of the laser head 1 is automatically aligned with the center of the light-transmitting hole on the housing 3, completing the centering calibration of the device. At the same time, the gas passage inside the laser head 1 is reliably sealed by the plunger 2, ensuring the gas passage sealing performance. Then, the laser head 1 is activated, and the emitted beam propagates along the axial direction after centering, passing through the clearance space of the connector 4 and the light-transmitting hole on the housing 3 that is directly opposite the clearance space, and precisely enters the receiving cavity inside the housing 3. The beam entering the receiving cavity illuminates the pre-installed beam splitter, which splits the beam into two parts according to a preset ratio. One part of the beam is reflected to the imaging component, which is also installed in the receiving cavity. After receiving the reflected beam, the imaging component detects the beam's quality parameters, such as the beam's spot shape, energy distribution, and divergence angle, and converts the detection data into a recognizable signal, thus completing the laser beam quality detection process.

[0037] This device innovatively employs a snap-fit ​​positioning structure between the plunger 2 and the countersunk hole 5, replacing the traditional, complex centering adjustment mechanism. The combination of the plunger 2 and the countersunk hole 5 has a natural advantage in positioning accuracy, enabling automatic and precise centering of the laser head 1 and the light-transmitting hole of the housing 3. This effectively avoids centering errors caused by manual adjustment, ensuring that the beam is always transmitted to the beam splitter along the preset path, providing a core guarantee for the accuracy of subsequent beam quality detection.

[0038] The snap-fit ​​between plunger 2 and countersunk hole 5 integrates the installation and alignment of the laser head assembly, simplifying the operation process and eliminating the need for tedious alignment and debugging by professional personnel, thus greatly shortening the assembly preparation time of the device. Compared with the traditional alignment method that relies on bolt fixing or multiple calibrations, this structure significantly simplifies the operation steps, greatly improves the preparation efficiency before testing, and increases the turnaround speed of the overall testing process.

[0039] The alignment structure of this device does not rely on the indicator light of the laser head 1 itself; reliable alignment can be achieved through precise mechanical coordination. This feature allows it to break through the dependence of traditional detection devices on lasers with indicator lights, and it can be perfectly adapted to laser heads without indicator lights, thus broadening the device's applicability and meeting the detection needs of different types of laser equipment.

[0040] Optionally, the housing 3 is equipped with a first protective cover 6, which is detachably installed on the housing 3 and is used to cover the light-transmitting hole.

[0041] The first protective cover 6 is detachably installed on the housing 3. When the device is not in operation, it can cover the light-transmitting hole, effectively preventing dust, impurities, etc. from entering the internal cavity of the housing 3, thus avoiding contamination or damage to precision components such as the beam splitting component and imaging component. At the same time, it can prevent external impacts from directly affecting the structure around the light-transmitting hole, thus providing protection. The detachable design ensures that it can be quickly removed during operation without affecting the testing process.

[0042] Furthermore, such as Figure 3 and Figure 4 As shown, the beam splitting assembly includes a beam splitter mount 7 and a beam splitter 8. The beam splitter mount 7 is installed on the inner wall of the receiving cavity, and the beam splitter 8 is fixed to the beam splitter mount 7.

[0043] The beam splitter mount 7 is securely installed on the inner wall of the housing cavity, providing a reliable mounting reference and support for the beam splitter 8. This design effectively prevents the beam splitter 8 from shifting or tilting due to vibration, impact, or other factors during operation, ensuring that the beam splitter 8 is always at the preset beam splitting angle and position, guaranteeing a stable beam splitting ratio, and thus providing a stable reflected beam for accurate detection of the imaging components, improving the reliability of the overall detection data. At the same time, the independent beam splitter mount design also facilitates the installation, debugging, and subsequent maintenance and replacement of the beam splitter, reducing maintenance costs.

[0044] Preferably, the beam splitter 8 is positioned at a 45° angle to the incident direction of the beam emitted by the laser head 1. This angle enables the beam splitter 8 to efficiently split the incident beam while allowing the reflected beam to propagate in a direction perpendicular to the incident beam. This facilitates a compact layout of the imaging components within the housing 3, eliminating the need for additional complex beam steering structures and further simplifying the internal layout of the device. Furthermore, the 45° angle minimizes energy loss and beam distortion during reflection, ensuring higher consistency between the beam quality reflected to the imaging components and the incident beam, providing a superior optical basis for accurate beam quality parameter detection.

[0045] Optionally, the beam splitter 8 is provided with a dielectric film beam splitting coating. This coating has advantages such as stable beam splitting ratio, good spectral selectivity, and low energy loss, and can transmit 95% of the laser while reflecting 5% of the laser for detection by the imaging components.

[0046] On the one hand, a 5% reflected beam is sufficient to meet the imaging component's requirements for beam quality detection, accurately reflecting key parameters such as the main beam's spot size and energy distribution. On the other hand, a high transmittance of 95% ensures that most of the main beam's energy is retained. If the device is applied to laser processing, measurement, or other scenarios, the main beam can continue to perform its original tasks, achieving the dual function of "detection without affecting the main operation," significantly improving the device's practicality and cost-effectiveness. Simultaneously, the dielectric film coating exhibits strong stability, maintaining a stable beam splitting ratio during long-term use and preventing a decrease in detection accuracy due to coating aging.

[0047] Furthermore, the laser detection device also includes a protective mirror 9, which is installed on the inner wall of the receiving cavity and located above the beam splitter mount 7.

[0048] The protective mirror 9 is installed on the inner wall of the receiving cavity and located above the beam splitter mount 7, forming a dedicated protective barrier for the beam splitter 8. From the beam transmission path perspective, the protective mirror 9 is positioned between the light-transmitting aperture and the beam splitter 8. When the beam enters the receiving cavity from the light-transmitting aperture, it first passes through the protective mirror 9 before illuminating the beam splitter 8. This arrangement effectively blocks any tiny impurities, dust, or laser processing spatter that may be trapped in the beam, preventing them from directly impacting the surface of the beam splitter 8 and thus preventing scratches or contamination of its optical surface. Furthermore, the protective mirror 9 is a consumable component; compared to the expensive and complex beam splitter 8, its replacement cost is lower and operation is more convenient. Regularly replacing the protective mirror 9 can extend the service life of the beam splitter 8 and reduce the overall maintenance cost of the device.

[0049] Optionally, a protective mirror 9 is provided below the beam splitter mount 7. The protective mirror 9 is located between the beam splitter mount 7 and the pressure cap 21.

[0050] like Figure 3 and Figure 4 As shown, the protective mirror 9 below the beam splitter mount 7 is positioned between the beam splitter mount 7 and the pressure cap 21, forming a two-way protection system for the beam splitter 8 together with the upper protective mirror 9. On one hand, the lower protective mirror 9 can prevent dust and impurities that may be present at the bottom of the housing cavity from spreading upwards to the surface of the beam splitter 8. At the same time, it can prevent fragments caused by minor deformation or detachment of the beam splitter 8 during long-term use from scattering downwards, avoiding contamination of imaging components and other parts, and further improving the cleanliness of the working environment of the beam splitter 8. On the other hand, the lower protective mirror 9 is clamped between the beam splitter mount 7 and the pressure cap 21. The fastening effect of the pressure cap 21 can form a stable integral structure with the protective mirror 9, the beam splitter mount 7, and the beam splitter 8. This not only prevents the protective mirror 9 from shifting or shaking, but also indirectly reinforces the installation stability of the beam splitter 8, reducing the impact of vibration on the beam splitting accuracy.

[0051] Furthermore, a second protective cover 10 is provided on the outer wall of the housing 3. The second protective cover 10 is at the same height as the protective mirror 9. One end of the second protective cover 10 is connected to the housing 3 by a pin, and the other end of the second protective cover 10 is threadedly connected to the housing 3 by a fastener 11. Specifically, the fastener 11 is a screw.

[0052] like Figure 2As shown, the second protective cover 10, installed on the outer wall of the housing 3, is reliably connected to the housing 3 via a combination of a pin and a fastener 11, providing targeted protection for the critical structure of the outer wall of the housing 3. On one hand, the second protective cover 10 effectively shields the interfaces, wiring, or weak structures of the outer wall of the housing 3, preventing physical damage caused by external collisions and friction. It also prevents the adhesion of contaminants such as dust and oil, making it particularly suitable for device protection in complex environments such as industrial processing. On the other hand, the pin connection at one end serves as a rotation fulcrum, while the threaded fastener 11 at the other end allows for detachable fixing. To open, simply loosen the fastener 11, and the second protective cover 10 can be flipped open around the pin without completely disassembling the cover, simplifying the operation and facilitating the replacement and maintenance of the protective lens 9.

[0053] Optionally, the cover 21 is fastened to the housing with screws. The removable design of the cover 21 makes it as easy to replace the lower protective mirror 9 as the upper protective mirror 9, ensuring continuous bidirectional protection and ease of maintenance.

[0054] Furthermore, the imaging assembly includes a camera 12 and a lens 14. The camera 12 is mounted on the outer wall of the housing 3, and the lens 14 is connected to the light-incident end of the camera 12. The lens 14 extends into the receiving cavity and is directly opposite to the reflected light path of the beam splitting assembly.

[0055] like Figure 3 and Figure 4 As shown, camera 12 is fixed to housing 3 via camera mounting plate 13. From the perspective of detection accuracy, the lens 14 is precisely aligned with the reflected light path of beam splitter 8, maximizing the reception of 5% of the beam reflected from beam splitter 8, reducing beam offset and loss during propagation, and ensuring that the light spot image captured by camera 12 is clear and complete, providing high-quality raw data for accurate analysis of beam quality parameters. From a structural layout perspective, the external placement of camera 12 avoids the crowded layout of internal optical components, while reducing potential interference from the laser beam to the camera 12 circuitry, lowering the risk of equipment failure. Lens 14 extends into the cavity to directly receive the beam, eliminating the need for an additional beam steering structure and simplifying the internal optical path design. From a maintenance perspective, camera 12 is mounted on the outer wall of housing 3, allowing for inspection, calibration, or replacement without disassembling the entire housing 3. The separate connection between lens 14 and camera 12 also facilitates individual maintenance of optical components, significantly improving the convenience of later maintenance and reducing downtime maintenance costs.

[0056] Furthermore, the imaging assembly also includes an adapter ring 15, which is threaded to the light-incident end of the camera 12, and the lens 14 is mounted on the end of the adapter ring 15 away from the camera 12.

[0057] On the one hand, the adapter ring 15 serves as a "fitting bridge" between the camera 12 and the lens 14, effectively solving the problem of incompatible interface specifications between different models of the camera 12 and the lens 14. It allows for diverse combinations without replacing core imaging components, significantly improving the versatility of the imaging assembly and the flexibility of future upgrades. On the other hand, the threaded connection is finely adjustable. During installation, the front and rear positions of the lens can be precisely adjusted by rotating the adapter ring 15, achieving precise calibration of focusing accuracy. This ensures that the light spot image captured by the camera 12 is in optimal sharpness, further improving the accuracy of beam quality detection.

[0058] Optionally, the imaging assembly also includes a filter 16, which is fixed to the end of the adapter ring 15 away from the lens 14. Specifically, the filter 16 is fixed to the adapter ring 15 with adhesive. The filter 16 can effectively filter stray light and prevent stray light from affecting image quality.

[0059] Furthermore, the imaging assembly also includes a camera housing 17, which is disposed on the outside of the camera 12. Specifically, the camera housing 17 is fixed to the housing 3 by screws.

[0060] As a precision optical device, the camera 12 is directly isolated from external physical interference by the camera housing 17, preventing dust, moisture, and oil from entering the camera body, avoiding blurry images caused by dirt on the lens 14, or short circuits caused by moisture in the internal circuit; and preventing the camera 12 from directly contacting hard objects in the outside, reducing scratches, damage, loosening of internal circuits and other problems caused by accidental collisions during installation or use.

[0061] Optionally, an auxiliary light 19 is provided on the top of the housing 3, and the auxiliary light 19 is connected to the housing 3 by screws. The auxiliary light 19 can ensure the brightness during image acquisition and improve the detection accuracy.

[0062] like Figure 3 and Figure 4 As shown, a circuit board 18 is mounted on the back of the camera mounting plate 13. A data cable is connected between the circuit board 18 and the camera 12. A power cable is connected between the circuit board 18 and the auxiliary light 19. A communication cable 20 is mounted on the camera housing 17. The communication cable 20 is connected to an external device. A data cable is connected between the circuit board 18 and the communication cable 20.

[0063] By consolidating the data transmission line of camera 12, the power line of auxiliary light 19, and the external communication line 20 onto circuit board 18, the messy tangling caused by directly connecting various cables is avoided, greatly improving the space utilization of the overall structure of camera 12 and making the internal layout of camera housing 17 more compact. Data collected by camera 12, after being processed by circuit board 18, can be directly transmitted to external devices via communication line 20. Simultaneously, control signals of auxiliary light 19 (such as trigger commands and brightness adjustment) can also be processed collaboratively with camera 12 data through the same circuit board 18, achieving synchronous control of camera 12 and auxiliary light 19, thus improving the coordination and efficiency of equipment operation.

[0064] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A laser detection device, characterized in that, include: A laser head assembly, comprising a laser head (1) and a plunger (2), wherein the laser head (1) has an internal gas passage, and the plunger (2) is installed on the laser head (1) and is used to block the gas passage; The housing (3) has a receiving cavity and a light-transmitting hole that communicates with the receiving cavity. The light-transmitting hole is used to transmit a light beam from the laser head (1). The connector (4) has a clearance space that extends vertically and is directly opposite the light-transmitting hole. The connector (4) is located above the housing (3) and is fixedly connected to the housing (3). The connector (4) has a countersunk hole (5) on the side away from the housing (3). The countersunk hole (5) is correspondingly provided with the plunger (2). The plunger (2) can be engaged in the countersunk hole (5) so that the laser head (1) is located in the clearance space. A beam splitter and an imaging assembly are provided. The beam splitter is installed in the cavity of the housing (3), and the imaging assembly is installed on the outer wall of the housing (3). The beam splitter can reflect a portion of the beam emitted by the laser head (1) to the imaging assembly, and the imaging assembly is used to detect the beam quality.

2. The laser detection device according to claim 1, characterized in that, The housing (3) is equipped with a first protective cover (6), which is detachably installed on the housing (3) and is used to cover the light-transmitting hole.

3. The laser detection device according to claim 1, characterized in that, The beam splitting assembly includes a beam splitter mount (7) and a beam splitter (8). The beam splitter mount (7) is installed on the inner wall of the receiving cavity, and the beam splitter (8) is fixed to the beam splitter mount (7).

4. The laser detection device according to claim 3, characterized in that, The beam splitter (8) is set at a 45° angle to the incident direction of the beam emitted by the laser head (1).

5. The laser detection device according to claim 3, characterized in that, The laser detection device also includes a protective mirror (9), which is installed on the inner wall of the receiving cavity and located above the beam splitter mount (7).

6. The laser detection device according to claim 5, characterized in that, The outer wall of the housing (3) is provided with a second protective cover (10). The second protective cover (10) is at the same height as the protective mirror (9). One end of the second protective cover (10) is connected to the housing (3) by a pin, and the other end of the second protective cover (10) is threadedly connected to the housing (3) by a fastener (11).

7. The laser detection device according to any one of claims 1 to 6, characterized in that, The imaging component includes a camera (12) and a lens (14). The camera (12) is mounted on the outer wall of the housing (3). The lens (14) is connected to the light-incident end of the camera (12). The lens (14) extends into the receiving cavity and is directly opposite to the reflected light path of the beam splitting component.

8. The laser detection device according to claim 7, characterized in that, The imaging assembly also includes an adapter ring (15) which is threaded to the light-inlet end of the camera (12), and the lens (14) is mounted on the end of the adapter ring (15) away from the camera (12).

9. The laser detection device according to claim 8, characterized in that, The imaging assembly also includes a filter (16) fixed to the end of the adapter ring (15) away from the lens (14).

10. The laser detection device according to claim 7, characterized in that, The imaging assembly also includes a camera housing (17) which covers the outside of the camera (12).

Images