Laser collimation light path adjusting device

Abstract

The utility model discloses a laser collimation light path adjusting device which comprises a machine shell, the top and the bottom of one side of the machine shell are respectively provided with a first self-locking motor, the output end of each first self-locking motor is connected with a lead screw, the lead screws are spirally sleeved with nut seats, and a movable adjusting frame is installed between every two adjacent nut seats. When laser collimation light path adjustment is carried out, the PLC controls the piston rods of the output ends of the two telescopic air cylinders to be in a contraction state, at the moment, the CCD camera right faces the front portion of the laser collimation lens, the light beam divergence angle and the light spot shape can be measured in real time, monitored data can be fed back to the PLC, and after laser collimation is completed, the laser collimation light path is adjusted. The PLC controller can control the adjusting mechanism to stop moving and start the piston rods at the output ends of the two telescopic cylinders to stretch out, the CCD camera is driven to be away from the laser collimation lens and stop at the side position, and the laser emitted by the laser light source and penetrating through the laser collimation lens to complete collimation processing cannot be shielded.

Description

A laser collimation optical path adjustment device Technical Field

[0001] This utility model relates to the field of laser collimation technology, specifically to a laser collimation optical path adjustment device. Background Technology

[0002] Laser collimation technology is widely used in industry, scientific research, and medical fields. Laser collimation refers to the process of controlling a laser beam through optical elements to significantly reduce its divergence angle and form a nearly parallel beam. It can make a laser beam that might otherwise diverge straighter and more focused, thereby improving its directionality and transmission stability. However, current laser collimation optical path adjustment devices still have some shortcomings in practical applications.

[0003] Laser collimation optical path adjustment devices often rely on manual experience to determine the collimation position before installing the lens close to the laser source. However, this method is not easy to automatically calibrate the relative distance between the lens and the source to ensure the source is at the focal point, nor is it easy to automatically adjust the tilt angle of the lens relative to the source to ensure beam coaxiality. Furthermore, the adjustment effect cannot be monitored or fed back, resulting in poor accuracy and inconvenient operation of laser collimation optical path adjustment. To address this, we propose a novel laser collimation optical path adjustment device. Summary of the Invention

[0004] The purpose of this invention is to provide a laser collimation optical path adjustment device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a laser collimation optical path adjustment device, comprising a housing, with a first self-locking motor installed at the top and bottom of one side of the housing, a lead screw connected to the output end of the first self-locking motor, a nut seat screwed onto the lead screw, a movable adjustment frame installed between adjacent nut seats, a PLC controller installed at one end of the movable adjustment frame, telescopic cylinders installed at both ends of the bottom of the movable adjustment frame, a CCD camera installed between adjacent telescopic cylinders, a left-right flip adjustment frame movably connected inside the movable adjustment frame, an up-down flip adjustment frame movably connected inside the left-right flip adjustment frame, a laser collimation lens installed inside the up-down flip adjustment frame, and a second self-locking motor and an encoder installed at the top of the movable adjustment frame and at one end of the left-right flip adjustment frame.

[0006] Preferably, the top and bottom ends of the housing are each provided with a guide cavity that matches the lead screw and nut seat, and the nut seat and the guide cavity form a sliding connection.

[0007] Preferably, the output end of the telescopic cylinder is equipped with a connecting plate.

[0008] Preferably, screws are evenly distributed between the CCD camera and the connecting plate, forming a disassembly and assembly structure between the CCD camera and the connecting plate.

[0009] Preferably, an external mounting arm is installed at each of the four corners of one end of the housing, and the external mounting arm is provided with screw holes.

[0010] Preferably, one end of the external arm is provided with a threaded locking block, and the housing is provided with a threaded groove that matches the threaded locking block.

[0011] Preferably, a reinforced outer frame is fixed at the edge of the laser collimation lens, and the reinforced outer frame and the up-and-down tilting adjustment frame are connected by screws to form a disassembly and installation structure.

[0012] Preferably, damping bearings are provided between the bottom of the left-right flip adjustment frame, the movable adjustment frame, one end of the up-down flip adjustment frame, and the left-right flip adjustment frame.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) The laser collimation optical path adjustment device optimizes its performance by installing a laser collimation lens. On the one hand, the PLC controller controls the start of two first self-locking motors, which, together with the transmission action formed by the corresponding lead screw and nut seat, can drive the movable adjustment frame to move back and forth automatically. This facilitates the adjustment of the relative distance between the laser collimation lens and the light source, which helps to ensure that the light source is at the focal point. On the other hand, the PLC controller can start the second self-locking motor on the top of the movable adjustment frame, which, together with the limiting and guiding action of the corresponding damping bearing, can drive the left and right tilting adjustment frame and the laser collimation lens to tilt left and right, which facilitates the calibration of the relative position of the laser collimation lens and the laser light source in the left and right directions. It can also start the second self-locking motor installed at one end of the left and right tilting adjustment frame, which, together with the limiting and guiding action of the corresponding damping bearing, can drive the up and down tilting adjustment frame and the laser collimation lens to tilt up and down, so as to calibrate the relative position of the laser collimation lens and the laser light source in the up and down directions. This makes the device, through a multi-stage adjustment structure, easy to fully calibrate the tilt angle of the laser collimation lens and ensure that the beam is coaxial.

[0015] (2) The laser collimation optical path adjustment device optimizes its structure by installing a CCD camera, etc. When adjusting the laser collimation optical path, the PLC controller controls the piston rods at the output ends of the two telescopic cylinders to be in a retracted state. At this time, the CCD camera is facing the front of the laser collimation lens and can measure the beam divergence angle and spot shape in real time, and feed the monitored data back to the PLC controller. When the laser collimation is completed, the PLC controller will control the adjustment mechanism to stop moving and start the piston rods at the output ends of the two telescopic cylinders to extend, driving the CCD camera away from the laser collimation lens and stopping at the side position, so as not to block the laser light source emitted and the laser that passes through the laser collimation lens to complete the collimation process. Attached Figure Description

[0016] Figure 1 is a front view of the structure of this utility model;

[0017] Figure 2 is a side view sectional structural diagram of the present invention;

[0018] Figure 3 is a front view structural diagram of the CCD camera of this utility model;

[0019] Figure 4 is an enlarged structural schematic diagram of point A in Figure 1 of this utility model;

[0020] Figure 5 is a schematic diagram of the rear view structure of the laser collimation lens of this utility model.

[0021] In the diagram: 1. Movable adjustment frame; 2. CCD camera; 3. Laser collimation lens; 4. Left and right tilting adjustment frame; 5. External arm; 6. Housing; 7. Guide slide cavity; 8. Threaded clamp; 9. Threaded groove; 10. Lead screw; 11. Nut seat; 12. First self-locking motor; 13. Connecting plate; 14. Telescopic cylinder; 15. Second self-locking motor; 16. Encoder; 17. Reinforced outer frame; 18. Up and down tilting adjustment frame; 19. PLC controller; 20. Damping bearing. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0023] Please refer to Figures 1-5. One embodiment of this utility model is provided: a laser collimation optical path adjustment device, including a housing 6. A first self-locking motor 12 is installed on the top and bottom of one side of the housing 6. The output end of the first self-locking motor 12 is connected to a lead screw 10. A nut seat 11 is screwed on the lead screw 10. A movable adjustment frame 1 is installed between adjacent nut seats 11. A PLC controller 19 is installed at one end of the movable adjustment frame 1.

[0024] In use, the PLC controller 19 controls the two first self-locking motors 12 to start, and together with the corresponding lead screw 10 and nut seat 11, the transmission action can drive the movable adjustment frame 1 to move back and forth automatically. This makes it easier to adjust the relative distance between the device and the light source, which helps to ensure that the light source is in the focal point.

[0025] Telescopic cylinders 14 are installed at both ends of the bottom of the movable adjustment frame 1, and a CCD camera 2 is installed between adjacent telescopic cylinders 14.

[0026] The movable adjustment frame 1 is internally connected to a left-right flip adjustment frame 4, and the left-right flip adjustment frame 4 is internally connected to a right-down flip adjustment frame 18. The right-down flip adjustment frame 18 is internally connected to a laser collimation lens 3. The top of the movable adjustment frame 1 and one end of the left-right flip adjustment frame 4 are both equipped with a second self-locking motor 15 and an encoder 16.

[0027] Damping bearings 20 are provided at the bottom of the left-right tilting adjustment frame 4, the movable adjustment frame 1, and one end of the up-down tilting adjustment frame 18 and the left-right tilting adjustment frame 4.

[0028] In use, the PLC controller 19 can either start the second self-locking motor 15 on the top of the moving adjustment frame 1, which, in conjunction with the limiting and guiding action of the corresponding damping bearing 20, can drive the left-right flip adjustment frame 4 and the laser collimating lens 3 to flip left and right, so as to calibrate the relative position of the laser collimating lens 3 and the laser source in the left and right directions; or start the second self-locking motor 15 installed at one end of the left-right flip adjustment frame 4, which, in conjunction with the limiting and guiding action of the corresponding damping bearing 20, can drive the up-down flip adjustment frame 18 and the laser collimating lens 3 to flip up and down, so as to calibrate the relative position of the laser collimating lens 3 and the laser source in the up and down directions. This allows the device to fully calibrate the tilt angle of the laser collimating lens 3 through a multi-stage adjustment structure, ensuring that the beam is coaxial.

[0029] The top and bottom of the housing 6 are both provided with guide cavities 7 that match the lead screw 10 and the nut seat 11. The nut seat 11 and the guide cavities 7 form a sliding connection.

[0030] A connecting plate 13 is installed at the output end of the telescopic cylinder 14;

[0031] Screws are evenly arranged between the CCD camera 2 and the connecting plate 13, forming a disassembly and installation structure between the CCD camera 2 and the connecting plate 13.

[0032] External mounting arms 5 are installed at the four corners of one end of the housing 6, and screw holes are provided on the external mounting arms 5.

[0033] One end of the external arm 5 is provided with a threaded locking block 8, and the housing 6 is provided with a threaded groove 9 that matches the threaded locking block 8;

[0034] In use, the user can use the threaded engagement between the threaded block 8 and the threaded slot 9 to replace the external arm 5 of different lengths on the device, and then assemble the device inside the laser equipment housing by screws and external arm 5.

[0035] A reinforced outer frame 17 is fixed at the edge of the laser collimation lens 3. The reinforced outer frame 17 and the up-and-down tilting adjustment frame 18 are connected by screws to form a disassembly and installation structure.

[0036] In use, the user can first utilize the threaded engagement between the threaded block 8 and the threaded slot 9 to replace the external arm 5 of different lengths on the device. Then, the device can be assembled inside the laser equipment housing using screws and the external arm 5. In actual use, the PLC controller 19 can either start the second self-locking motor 15 at the top of the moving adjustment frame 1, which, in conjunction with the limiting and guiding action of the corresponding damping bearing 20, can drive the left-right tilting adjustment frame 4 and the laser collimating lens 3 to tilt left and right, facilitating the calibration of the relative position of the laser collimating lens 3 and the laser source in the left and right directions; or start the second self-locking motor 15 installed at one end of the left-right tilting adjustment frame 4, which, in conjunction with the limiting and guiding action of the corresponding damping bearing 20, can drive the up-down tilting adjustment frame 18 and the laser collimating lens 3 to tilt up and down, facilitating the calibration of the relative position of the laser collimating lens 3 and the laser source in the up and down directions. This allows the device to facilitate comprehensive calibration of the laser collimation through a multi-stage adjustment structure. The tilt angle of lens 3 ensures coaxial beam alignment. Furthermore, the PLC controller 19 controls the two first self-locking motors 12 to start, which, in conjunction with the corresponding lead screw 10 and nut seat 11, form a transmission mechanism that automatically moves the movable adjustment frame 1 back and forth. This facilitates adjusting the relative distance between the device and the light source, ensuring the light source is at the focal point. Simultaneously, during laser collimation path adjustment, the PLC controller 19 controls the piston rods at the output ends of the two telescopic cylinders 14 to be in a retracted state. At this time, the CCD camera 2 faces the front of the laser collimation lens 3, allowing real-time measurement of the beam divergence angle and spot shape, and feeding the monitored data back to the PLC controller 19. Once laser collimation is complete, the PLC controller 19 controls the adjustment mechanism to stop moving and activates the piston rods at the output ends of the two telescopic cylinders 14 to extend, moving the CCD camera 2 away from the laser collimation lens 3 and stopping it at the side, thus preventing obstruction of the laser emitted from the laser source and the laser that passes through the laser collimation lens 3 to complete the collimation process.

Claims

1. A laser collimation optical path adjustment device, characterized in that, The device includes a housing (6), on the top and bottom of one side of the housing (6) a first self-locking motor (12) is installed, the output end of the first self-locking motor (12) is connected to a lead screw (10), a nut seat (11) is screwed on the lead screw (10), a movable adjustment frame (1) is installed between adjacent nut seats (11), a PLC controller (19) is installed at one end of the movable adjustment frame (1), telescopic cylinders (14) are installed at both ends of the bottom of the movable adjustment frame (1), a CCD camera (2) is installed between adjacent telescopic cylinders (14), a left and right flip adjustment frame (4) is movably connected inside the movable adjustment frame (1), an up and down flip adjustment frame (18) is movably connected inside the left and right flip adjustment frame (4), a laser collimation lens (3) is installed inside the up and down flip adjustment frame (18), a second self-locking motor (15) and an encoder (16) are installed at the top of the movable adjustment frame (1) and at one end of the left and right flip adjustment frame (4).

2. The laser collimation optical path adjustment device according to claim 1, characterized in that: The top and bottom ends of the housing (6) are each provided with a guide slide cavity (7) that matches the lead screw (10) and nut seat (11), and the nut seat (11) and the guide slide cavity (7) form a sliding connection.

3. The laser collimation optical path adjustment device according to claim 1, characterized in that: The output end of the telescopic cylinder (14) is equipped with a connecting plate (13).

4. The laser collimation optical path adjustment device according to claim 3, characterized in that: Screws are evenly arranged between the CCD camera (2) and the connecting plate (13), forming a disassembly and installation structure between the CCD camera (2) and the connecting plate (13).

5. The laser collimation optical path adjustment device according to claim 1, characterized in that: External mounting arms (5) are installed at the four corners of one end of the housing (6), and screw holes are provided on the external mounting arms (5).

6. The laser collimation optical path adjustment device according to claim 5, characterized in that: One end of the external arm (5) is provided with a threaded block (8), and the housing (6) is provided with a threaded groove (9) that matches the threaded block (8).

7. The laser collimation optical path adjustment device according to claim 1, characterized in that: A reinforced outer frame (17) is fixed at the edge of the laser collimation lens (3), and the reinforced outer frame (17) and the up-and-down tilting adjustment frame (18) are connected by screws to form a disassembly and installation structure.

8. The laser collimation optical path adjustment device according to claim 1, characterized in that: Damping bearings (20) are provided between the bottom of the left-right flip adjustment frame (4), the movable adjustment frame (1), one end of the up-down flip adjustment frame (18), and the left-right flip adjustment frame (4).

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