Laser beam adjusting device

Abstract

The utility model relates to the technical field of laser beams, in particular to a laser beam adjusting device which comprises a laser generator, an adjusting mechanism for adjusting focusing of the laser beams is arranged on the lower surface of the laser generator, and a locking mechanism for fast locking is arranged on the lower surface of the adjusting mechanism. According to the laser beam adjusting device, through the arrangement of the adjusting mechanism, the optical lens, the adjusting lens, the servo motor, the monitoring assembly and the like are matched with one another, a laser generator can generate light beams and emit the light beams into an adjusting sleeve, the light beams can be pre-gathered through the optical lens, and the power of the penetrating light beams can be monitored through an optical power meter; when the power does not meet the requirement, the servo motor is started through the controller, the adjusting screw rod is driven to rotate through the output shaft so as to be matched with the sliding rod to drive the adjusting frame to move up and down, light beams are rapidly gathered by changing the distance of the adjusting lens, the focal length of the light beams is automatically adjusted, the servo motor is high in driving precision, and the proper distance can be accurately adjusted.

Description

Technical Field

[0001] This application relates to the technical field of laser beam technology, and particularly to a laser beam adjustment device. Background Art

[0002] With the development of electronic product manufacturing technology, the manufacturing of PCBs is moving towards precision and microfabrication. Laser processing well meets this requirement, and laser processing is a "non-contact processing". Ultraviolet laser processing is a true "cold processing". Most materials have a relatively high absorption rate for ultraviolet light. Since the energy of ultraviolet photons is relatively large compared to that of visible and infrared photons, it can directly break the molecular bonds on the surface of many non-metallic materials, causing the molecules to break away from the material. This method does not generate high heat, and the components processed by this cold light treatment technology have smooth edges and minimal carbonization.

[0003] For example, an ultraviolet laser beam shaping device disclosed in Chinese Patent Publication No. (CN205665469U) includes a laser light source body, an energy display, an energy regulator, a connecting block, a focusing device, and a stabilizing device. An energy display is provided on the surface of the laser light source body. An energy regulator is fixedly installed below the energy display. The bottom end of the laser light source body is fixedly connected to a connecting block. A focusing device is movably provided below the connecting block. A beam stabilizing device is provided at the bottom of the focusing device. Preferably, the focusing device includes a focusing housing, an injection port, a fixed block, a convex lens, and a processing lens. This utility model automatically focuses and adjusts the ultraviolet beam through the device by setting the focusing device, so that the beam emits parallel beams. The device has simple operation, strong controllability and adjustability, and also avoids the problem that in the middle of cutting, due to the high energy density, the material is cut off, while at the edge of the cut, the energy density is low, and the material is melted and carbonized and blackened.

[0004] However, there is still a problem of relatively low beam adjustment accuracy for the laser beam in the above-mentioned patent. For example, in the above-mentioned patent, an electric push rod is provided in the laser generator, and the position of the lens is adjusted by the telescopic movement of the output shaft of the electric push rod, so as to adjust the focal length of the beam. However, in this method, the extended length of the electric push rod cannot be accurately quantified, which easily leads to inaccuracy in the position of the lens, thereby affecting the focusing accuracy of the beam. Summary of the Utility Model

[0005] Aiming at the deficiencies of the prior art, this application provides a laser beam adjustment device, which has the advantages of high beam adjustment accuracy, etc., and solves the problem of relatively low beam adjustment accuracy for the laser beam.

[0006] To achieve the above object, the present application provides the following technical solution: A laser beam adjustment device, including a laser generator, an adjustment mechanism for focusing and adjusting the laser beam is provided on the lower surface of the laser generator, and a locking mechanism for quick locking is provided on the lower surface of the adjustment mechanism;

[0007] The adjustment mechanism includes an adjustment sleeve, an optical lens, two fixing brackets, an adjustment screw, a sliding rod, a servo motor, an adjustment bracket, an adjustment lens and a monitoring component. The adjustment sleeve is fixed to the lower surface of the laser generator. The optical lens is fixed to the top of the inner wall of the adjustment sleeve. The two fixing brackets are respectively fixed to the left and right inner walls of the adjustment sleeve. The two ends of the adjustment screw are respectively rotatably connected to the upper and lower inner walls of the left fixing bracket through bearings. The two ends of the sliding rod are respectively fixed to the upper and lower inner walls of the right fixing bracket. The servo motor is fixed to the lower surface of the left fixing bracket, and the outer side of the output shaft of the servo motor is fixed to the adjustment screw. The adjustment bracket is threadedly connected to the outer side of the adjustment screw. The adjustment lens is fixed to the inner wall of the adjustment bracket. The monitoring component is arranged on the inner bottom wall of the adjustment sleeve to monitor the power of the adjusted beam.

[0008] By adopting this technical solution, the servo motor is started by the controller, and the adjustment screw is driven to rotate through the output shaft, so as to drive the adjustment bracket to move up and down in cooperation with the sliding rod, and the beam is quickly focused by changing the distance of the adjustment lens, realizing automatic adjustment of the focal length of the beam.

[0009] Further, the monitoring component includes a light receiving tube, an optical power meter and a protective cover. The light receiving tube is vertically fixed to the inner bottom wall of the adjustment sleeve. The optical power meter is fixed to the inner wall of the light receiving tube. The protective cover is fixed to the lower surface of the adjustment sleeve and located outside the light receiving tube.

[0010] By adopting this technical solution, the beam generated by focusing enters the light receiving tube, and the optical power meter can monitor the power of the passing beam.

[0011] Further, a controller is fixed to the inner wall of the adjustment sleeve, and the adjustment lens and the optical lens are located on the same central axis.

[0012] By adopting this technical solution, the laser generator generates a laser particle beam and emits it into the adjustment sleeve. First, the optical lens can pre-focus the beam.

[0013] Further, a sliding hole is formed on the right side of the upper surface of the adjustment bracket, and the adjustment bracket is slidably connected to the outer side of the sliding rod through the sliding hole.

[0014] By adopting this technical solution, the adjustment bracket is driven to move by the rotation of the adjustment screw, and the other side slides along the outer side of the sliding rod through the sliding hole, so as to keep the adjustment bracket moving in a vertical linear motion.

[0015] Further, the bottom end of the light collecting tube is communicated with a laser emission conduit.

[0016] By adopting this technical solution, it is used to improve the emission concentration of the beam for beam convergence.

[0017] Further, the locking mechanism includes two fixing plates, a fixed backing plate, an electric push rod, a push plate and a locking piece. The two fixing plates are respectively fixed to the right side of the lower surface of the adjusting frame. The fixed backing plate is fixed to the left side of the right fixing plate. The electric push rod is fixed to the left side of the left fixing plate. The push plate is fixed to the outside of the output shaft of the electric push rod. The locking piece is fixed to the right side of the push plate.

[0018] By adopting this technical solution, the output shaft of the electric push rod is started by the controller to extend, and then the push plate and the locking piece are driven by the output shaft to move and abut against the sliding rod for locking.

[0019] Further, the length of the fixed backing plate is greater than the diameter of the sliding rod.

[0020] By adopting this technical solution, the fixed backing plate can serve the purpose of assisting locking.

[0021] Further, the shapes of the fixed backing plate and the locking piece are both arc-shaped, and friction pads are fixed to the opposite sides of the fixed backing plate and the locking piece.

[0022] By adopting this technical solution, the locking piece is used in cooperation with the fixed backing plate to abut against the outside of the sliding rod to increase the friction force to achieve quick locking, ensuring that it can remain stable after setting the required focal length, so as to facilitate the application of maintaining a specific focal length for a long time.

[0023] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0024] 1. For this laser beam adjustment device, by setting an adjustment mechanism, through the mutual cooperation among the optical lens, the adjustment screw, the adjustment frame, the adjustment lens, the servo motor and the monitoring component, etc., it can generate a laser particle beam by the laser generator and emit it into the adjustment sleeve. First, the optical lens can pre-concentrate the beam, and the optical power meter can monitor the power of the passing beam. When the power does not meet the requirements, the servo motor is started by the controller, and the output shaft drives the adjustment screw to rotate, so as to drive the adjustment frame to move up and down in cooperation with the sliding rod, and change the distance of the adjustment lens to quickly concentrate the beam, realizing the automatic adjustment of the focal length of the beam. The driving accuracy of the servo motor is high, and it can accurately adjust the appropriate distance.

[0025] 2. The laser beam adjustment device is provided with a locking mechanism. Through the mutual cooperation among the fixing plate, the fixed support plate, the electric push rod, the push plate and the locking piece, etc., after the adjusting lens moves to a proper position, the output shaft of the electric push rod is started to extend by the controller. Then, the push plate and the locking piece are driven by the output shaft to move and abut against the sliding rod. The locking piece cooperates with the fixed support plate to abut against the outer side of the sliding rod to increase the friction force to achieve quick locking, ensuring stability after setting the required focal length, so as to facilitate the application of maintaining a specific focal length for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of the present application;

[0027] Figure 2 is a schematic diagram of the adjusting mechanism of the present application;

[0028] Figure 3 is a schematic diagram of the locking mechanism of the present application.

[0029] In the figure: 1. Laser generator; 2. Adjusting mechanism; 21. Adjusting sleeve; 22. Optical lens; 23. Fixed frame; 24. Adjusting screw; 25. Sliding rod; 26. Servo motor; 27. Adjusting frame; 28. Adjusting lens; 29. Monitoring component; 291. Light receiving tube; 292. Optical power meter; 293. Protective cover; 394. Laser emission conduit; 3. Locking mechanism; 31. Fixing plate; 32. Fixed support plate; 33. Electric push rod; 34. Push plate; 35. Locking piece. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0031] Please refer to Figure 1 , a laser beam adjustment device in this embodiment includes a laser generator 1. An adjusting mechanism 2 for focusing and adjusting the laser beam is provided on the lower surface of the laser generator 1, and a locking mechanism 3 for quick locking is provided on the lower surface of the adjusting mechanism 2.

[0032] Please refer to Figure 2, for the purpose of focusing and adjusting the light beam, the adjusting mechanism 2 in this embodiment includes an adjusting sleeve 21, an optical lens 22, two fixing brackets 23, an adjusting screw 24, a sliding rod 25, a servo motor 26, an adjusting bracket 27, an adjusting lens 28 and a monitoring component 29. The adjusting sleeve 21 is fixed to the lower surface of the laser generator 1, and the optical lens 22 is fixed to the top of the inner wall of the adjusting sleeve 21. The laser generator generates a laser particle beam and emits it into the adjusting sleeve 21. First, the optical lens 22 can pre-focus the light beam. The two fixing brackets 23 are respectively fixed to the left and right inner walls of the adjusting sleeve 21. The two ends of the adjusting screw 24 are respectively rotatably connected to the upper and lower inner walls of the left fixing bracket 23 through bearings. The two ends of the sliding rod 25 are respectively fixed to the upper and lower inner walls of the right fixing bracket 23. The servo motor 26 is fixed to the lower surface of the left fixing bracket 23, and the outer side of the output shaft of the servo motor 26 is fixed to the adjusting screw 24. The adjusting bracket 27 is threadedly connected to the outer side of the adjusting screw 24. When the power does not meet the requirements, the controller starts the servo motor 26, and the output shaft drives the adjusting screw 24 to rotate, so as to drive the adjusting bracket 27 to move up and down in cooperation with the sliding rod 25. The adjusting lens 28 is fixed to the inner wall of the adjusting bracket 27, and the monitoring component 29 is arranged on the inner bottom wall of the adjusting sleeve 21 to monitor the power of the adjusted light beam.

[0033] The monitoring component 29 includes a light receiving tube 291, a light power meter 292 and a protective cover 293. The light receiving tube 291 is vertically fixed to the inner bottom wall of the adjusting sleeve 21, and the light power meter 292 is fixed to the inner wall of the light receiving tube 291. The light beam generated by focusing enters the light receiving tube 291, and the light power meter 292 can monitor the power of the passing light beam. The light power meter 292 includes a detector and a display screen, and can directly read the power of the light beam. The protective cover 293 is fixed to the lower surface of the adjusting sleeve 21 and located outside the light receiving tube 291.

[0034] In this embodiment, a controller is fixed to the inner wall of the adjusting sleeve 21. The adjusting lens 28 and the optical lens 22 are located on the same central axis. A sliding hole is formed in the right side of the upper surface of the adjusting bracket 27, and the adjusting bracket 27 is slidably connected to the outer side of the sliding rod 25 through the sliding hole. The adjusting bracket 27 is driven to move by the rotation of the adjusting screw 24, and the other side slides along the outer side of the sliding rod 25 through the sliding hole, so as to keep the adjusting bracket 27 moving in a vertical linear motion. The bottom end of the light receiving tube 291 is communicated with a laser emission conduit 394. By changing the distance of the adjusting lens 28, the light beam can be quickly focused, and the focal length of the light beam can be automatically adjusted. The servo motor 26 has a high driving accuracy and can accurately adjust the appropriate distance.

[0035] Please refer to Figure 3, in order to improve the locking stability after adjustment, the locking mechanism 3 in this embodiment includes two fixing plates 31, a fixed backing plate 32, an electric push rod 33, a push plate 34 and a locking piece 35. The two fixing plates 31 are respectively fixed to the right side of the lower surface of the adjusting frame 27, the fixed backing plate 32 is fixed to the left side of the right fixing plate 31, and the fixing plate 31 can move together with the adjusting frame 27. After the adjusting lens 28 is moved to a suitable position, the output shaft of the electric push rod 33 is extended by starting the electric push rod 33 through the controller, and then the push plate 34 and the locking piece 35 are driven by the output shaft to move and abut against the sliding rod 25. The electric push rod 33 is fixed to the left side of the left fixing plate 31, the push plate 34 is fixed to the outside of the output shaft of the electric push rod 33, and the locking piece 35 is fixed to the right side of the push plate 34.

[0036] In this embodiment, the length of the fixed backing plate 32 is greater than the diameter of the sliding rod 25. The shapes of the fixed backing plate 32 and the locking piece 35 are both arc-shaped, and friction pads are fixed to the opposite sides of the fixed backing plate 32 and the locking piece 35. The locking piece 35 is used in cooperation with the fixed backing plate 32 to abut against the outside of the sliding rod 25 to increase the friction force to achieve rapid locking, ensuring stability can be maintained after setting the required focal length, so as to facilitate the application of maintaining a specific focal length for a long time. The electric push rod 33, the optical power meter 292, and the servo motor 26 are all electrically connected to the controller.

[0037] The working principle of the above embodiment is as follows:

[0038] (1) When focusing and adjusting the light beam, a laser particle beam is generated by the laser generator and emitted into the adjusting sleeve 21. First, the light beam can be pre-focused by the optical lens 22. The focused light beam enters the light receiving tube 291, and the optical power meter 292 can monitor the power of the passing light beam. It includes a detector and a display screen, and the power of the light beam can be directly read. When the power does not meet the requirements, the servo motor 26 is started through the controller, and the output shaft drives the adjusting screw 24 to rotate, so as to drive the adjusting frame 27 to move up and down in cooperation with the sliding rod 25. The adjusting frame 27 is driven to move by the rotation of the adjusting screw 24, and the other side slides along the outside of the sliding rod 25 through the sliding hole, which can keep the adjusting frame 27 performing vertical linear motion, and the focal length of the light beam can be quickly focused by changing the distance of the adjusting lens 28, realizing automatic adjustment of the focal length of the light beam. The servo motor 26 has high driving accuracy and can accurately adjust the appropriate distance.

[0039] (2) When the adjusting frame 27 drives the adjusting lens 28 to move and adjust the distance, the fixing plate 31 can move together with the adjusting frame 27. After the adjusting lens 28 is moved to a suitable position, the output shaft of the electric push rod 33 is extended by starting the electric push rod 33 through the controller, and then the push plate 34 and the locking piece 35 are driven by the output shaft to move and abut against the sliding rod 25. The locking piece 35 is used in cooperation with the fixed backing plate 32 to abut against the outside of the sliding rod 25 to increase the friction force to achieve rapid locking, ensuring stability can be maintained after setting the required focal length, so as to facilitate the application of maintaining a specific focal length for a long time.

Claims

1. A laser beam adjustment device, comprising a laser generator (1), characterized in that: The lower surface of the laser generator (1) is provided with an adjustment mechanism (2) for adjusting the focus of the laser beam, and the lower surface of the adjustment mechanism (2) is provided with a locking mechanism (3) for quick locking; The adjustment mechanism (2) comprises an adjustment sleeve (21), an optical lens (22), two fixing frames (23), an adjustment screw (24), a slide bar (25), a servo motor (26), an adjustment frame (27), an adjustment lens (28) and a monitoring component (29); the adjustment sleeve (21) is fixed to the lower surface of the laser generator (1); the optical lens (22) is fixed to the top of the inner wall of the adjustment sleeve (21); the two fixing frames (23) are respectively fixed to the inner walls of the left and right sides of the adjustment sleeve (21); and the two ends of the adjustment screw (24) are respectively connected to the left fixed frame via bearings. The upper and lower inner walls of the fixed frame (23) are rotatably connected, the two ends of the slide rod (25) are respectively fixed to the upper and lower inner walls of the right fixed frame (23), the servo motor (26) is fixed to the lower surface of the left fixed frame (23), and the outer side of the output shaft of the servo motor (26) is fixedly connected to the adjusting screw (24), the adjusting frame (27) is threadedly connected to the outer side of the adjusting screw (24), the adjusting lens (28) is fixed to the inner wall of the adjusting frame (27), and the monitoring component (29) is arranged on the inner bottom wall of the adjusting sleeve (21) to monitor the power of the adjusted light beam.

2. The laser beam adjustment device according to claim 1, characterized in that: The monitoring assembly (29) comprises a light receiving tube (291), an optical power meter (292) and a protective cover (293); the light receiving tube (291) is vertically fixed to the inner bottom wall of the adjustment sleeve (21); the optical power meter (292) is fixed to the inner wall of the light receiving tube (291); and the protective cover (293) is fixed to the lower surface of the adjustment sleeve (21) and is located outside the light receiving tube (291).

3. The laser beam adjustment device according to claim 1, characterized in that: A controller is fixed to the inner wall of the adjustment sleeve (21), and the adjustment lens (28) and the optical lens (22) are located on the same central axis.

4. The laser beam adjustment device according to claim 1, characterized in that: A sliding hole is provided on the right side of the upper surface of the adjustment frame (27), and the adjustment frame (27) is slidably connected to the outer side of the sliding rod (25) through the sliding hole.

5. The laser beam adjustment device according to claim 2, characterized in that: The bottom end of the light receiving tube (291) is connected to a laser emitting conduit (394).

6. The laser beam adjustment device according to claim 1, characterized in that: The locking mechanism (3) comprises two fixed plates (31), a fixed backing plate (32), an electric push rod (33), a push plate (34) and a locking piece (35); the two fixed plates (31) are respectively fixed to the right side of the lower surface of the adjustment frame (27); the fixed backing plate (32) is fixed to the left side of the right fixed plate (31); the electric push rod (33) is fixed to the left side of the left fixed plate (31); the push plate (34) is fixed to the outer side of the output shaft of the electric push rod (33); and the locking piece (35) is fixed to the right side of the push plate (34).

7. The laser beam adjustment device according to claim 6, characterized in that: The length of the fixed support plate (32) is greater than the diameter of the sliding rod (25).

8. The laser beam adjustment device according to claim 6, characterized in that: The fixed backing plate (32) and the locking plate (35) are both arc-shaped, and friction pads are fixed on opposite sides of the fixed backing plate (32) and the locking plate (35).

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