Laser protection device
By designing a laser protection device in a laser cutting machine, using reflective lenses and red light emitters to independently control red light and laser light, combined with sensors and torsion spring structure, the problems of laser energy loss and safety warning in the laser cutting machine are solved, and the problem of laser energy loss and safety warning in the laser cutting machine is improved Operational safety and reduce laser loss.
Patent Information
- Application Number
- CN202420889261.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-26
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-04-26
AI Technical Summary
Existing laser cutting machines will cause a laser power loss of 6%-15% when the laser passes through the beam-combining mirror. At the same time, red light and laser appear at the same time, which cannot effectively serve as a warning effect and affect safety.
Design a laser protection device, using reflective lenses and red light emitters, realize independent control of red light and laser through stops and motors, ensure that red light does not appear at the same time as laser, and improve safety through sensors and torsion spring structures and The accuracy of the optical path reduces laser loss.
It realizes that the red light disappears without losing laser energy, which improves operational safety, reduces damage caused by mistake, and reduces the loss of laser energy.
Smart Images
Figure CN222154259U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of laser processing equipment, and in particular relates to a laser protection device. Background Art
[0002] As a new type of processing source, laser has the advantages of high energy, good collimation, and stress-free processing, and is widely used in various processing occasions, such as welding, cutting, irradiation modification, etc. Different types of lasers combined with excellent light guide systems can make lasers adapt to various processing needs.
[0003] To improve processing quality, laser cutting machines are currently widely used. The existing technology adds a 45-degree laser beam combiner to the light output position of the laser optical path, allowing the laser to pass through the lens, and installs a red light emitter above the 45-degree laser beam combiner lens. The red light wave is a transverse wave, and will be refracted when it hits the beam combiner lens. This solution can make the red light overlap with the laser optical path, so that the red light and the laser appear at the same time, and the trajectory of the laser movement direction can be seen, which plays a warning role.
[0004] However, when the laser passes through the laser beam combiner, the quality of the laser beam combiner's coating will directly result in a loss of 6%-15% of the laser power. Utility Model Content
[0005] The utility model aims to solve the above-mentioned technical problems existing in the prior art and provides a laser protection device. The red light and the laser do not appear at the same time. When the red light disappears, it indicates that the laser has emitted the laser, which serves as a warning. In addition, the laser is reflected by a reflective lens to form an optical path, thereby reducing the loss of laser power.
[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:
[0007] A laser protection device includes a laser, which is used to emit laser light. The device is characterized in that it also includes a reflective lens, a red light emitter, a mounting seat and a block. The reflective lens is used to reflect the laser light to form an optical path. The red light emitter is used to emit red light. The mounting seat is used to install the red light emitter. The mounting seat is provided with a light outlet, which is used for the optical path to pass through. The block is movably connected to the mounting seat. A mirror is provided on one side of the block, which faces the red light emitter, and the other side of the block faces the light outlet. When the block is in its original position, the optical path is blocked by the block, and the red light is reflected from the mirror. The movable block is used to block the red light, and the optical path is unblocked.
[0008] Furthermore, the mounting seat is equipped with a motor, which passes through the top of the mounting seat and is connected to the stopper. The motor drives the stopper to rotate on the mounting seat, thereby enabling the stopper to move on the mounting seat and changing the position of the stopper.
[0009] Furthermore, the mounting seat is provided with a limiting column, and two limiting columns are used to form an active area. The stopper is arranged in the active area, so that the stopper can move within a certain range, thereby improving the accuracy of the change in the position of the stopper.
[0010] Furthermore, the mounting seat is fixed with a torsion spring, the torsion spring and the stopper are fixed, and the stopper returns to its original position by elastic deformation of the torsion spring after movement. The torsion spring has a simple structure and low cost.
[0011] Furthermore, the mounting seat is provided with a fixing sleeve, one end of the torsion spring is fixed in the fixing sleeve, a fixing column is provided at the bottom of the stopper, the two fixing columns form a gap, the other end of the torsion spring is limited in the gap, so that the torsion spring is fixed between the mounting seat and the stopper.
[0012] Furthermore, the mounting base is provided with a sensor. When the stopper moves, the sensor is triggered and the laser can emit laser, thereby improving safety.
[0013] Furthermore, the mounting base is provided with a connecting plate, and the sensor is fixed on the connecting plate by two nuts, so that the sensor can be easily assembled and disassembled on the connecting plate.
[0014] The utility model has the following beneficial effects due to the adoption of the above technical solution:
[0015] When the block is activated, the block blocks the red light, and the optical path is unobstructed. When the block is in its original position, the optical path is blocked by the block, and the red light reappears through reflection at the mirror surface. At this time, even if the laser is out of control, the safety of the staff can be guaranteed, and the damage caused by accidental touch is reduced to ensure the safety of the users.
[0016] The red light and laser of the utility model do not appear at the same time. When the red light disappears, it indicates that the laser has emitted laser light. The disappearance of the red light serves as a warning. There is no need to use a laser beam combiner. The utility model uses a reflective lens to reflect the laser to form an optical path, thereby reducing the loss of laser power. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The utility model is further described below in conjunction with the accompanying drawings:
[0018] Figure 1 This is a schematic diagram of the structure of a laser protection device of the utility model;
[0019] Figure 2 This is a schematic diagram of the structure in which the stopper is movably connected to the mounting seat in the utility model;
[0020] Figure 3 for Figure 2 The main view of
[0021] Figure 4 for Figure 2 Top view of the .
[0022] In the figure, 1-laser; 2-reflecting lens; 3-red light emitter; 4-mounting seat; 5-light outlet; 6-motor; 7-block; 8-sensor; 9-connecting plate; 10-limiting column; 11-torsion spring; 12-fixing sleeve; 13-fixing column; 14-nut; 15-mirror. DETAILED DESCRIPTION
[0023] like Figures 1 to 4 As shown, a laser protection device of the utility model includes a laser 1, a reflective lens 2, a red light emitter 3, a mounting seat 4 and a stopper 7. The laser 1 is used to emit laser light, and two reflective lenses 2 are used to reflect the laser light emitted by the laser 1 to form an optical path. The mounting seat 4 is provided with a light outlet 5, and the optical path passes through and is emitted from the light outlet 5. The red light emitter 3 is mounted on the mounting seat 4, and the red light emitter 3 emits red light.
[0024] The mounting seat 4 is provided with a motor 6, which is a DC motor. The motor 6 passes through the top of the mounting seat 4 and is connected to the stopper 7. The stopper 7 is driven to rotate on the mounting seat 4 by the motor 6, so that the stopper 7 can move on the mounting seat 4 and change the position of the stopper 7. The mounting seat 4 is provided with a limit column 10, and two limit columns 10 are used to form an active area. The stopper 7 is arranged in the active area, so that the stopper 7 can move within a certain range, thereby improving the accuracy of the position change of the stopper 7.
[0025] A mirror 15 is provided on one side of the stopper 7, and the mirror 15 faces the red light emitter 3, and the other side of the stopper 7 faces the light outlet 5. A torsion spring 11 is fixed to the mounting seat 4, and the torsion spring 11 and the stopper 7 are fixed. After the movement, the stopper 7 returns to its original position by the elastic deformation of the torsion spring 11. The torsion spring 11 has a simple structure and low cost. The fixing method of the torsion spring 11 is as follows: the mounting seat 4 is provided with a fixing sleeve 12, and one end of the torsion spring 11 is fixed in the fixing sleeve 12; a fixing column 13 is provided at the bottom of the stopper 7, and the two fixing columns 13 form a gap, and the other end of the torsion spring 11 is limited in the gap, so that the torsion spring 11 is fixed between the mounting seat 4 and the stopper 7.
[0026] The mounting base 4 is provided with a connecting plate 9, through which the sensor 8 passes, and the sensor 8 is provided with two nuts 14, which are respectively limited at the top and bottom surfaces of the connecting plate 9. The connecting plate 9 has enough area for installing the sensor 8, so that the sensor 8 can be easily disassembled and assembled on the connecting plate 9. The stopper 7 is pulled to the limiting column 10 on the right side by the motor 6, and the sensor 8 is triggered, so that the laser 1 can emit the laser, thereby improving safety.
[0027] When the motor 6 is started, the block 7 blocks the red light, and the light path is unblocked. After the motor 6 is turned off, the torsion spring 11 is forced to pull the block 7 back to its original position, the light path is blocked by the block 7, and the red light reappears through the reflection at the mirror 15. At this time, even if the laser 1 is not controlled, the safety of the staff can be guaranteed, and the damage caused by accidental touch is reduced to ensure the safety of the user.
[0028] The above are only specific embodiments of the utility model, but the technical features of the utility model are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the utility model to solve basically the same technical problems and achieve basically the same technical effects are all included in the protection scope of the utility model.
Claims
1. A laser protection device, comprising: A laser, the laser is used to emit laser light; characterized in that it also includes: A reflective lens, which is used to reflect the laser to form an optical path; a red light emitter, the red light emitter being used to emit red light; A mounting seat, the mounting seat is used for mounting the red light emitter, the mounting seat is provided with a light outlet, the light outlet is used for the light path to pass through; A block, which is movably connected to the mounting seat, a mirror is provided on one side of the block, the mirror faces the red light emitter, and the other side of the block faces the light outlet; when the block is in its original position, the light path is blocked by the block, and the red light appears through reflection at the mirror; when the block is movable, the block is used to block the red light, and the light path is unobstructed.
2. A laser protection device according to claim 1, characterized in that: The mounting seat is equipped with a motor, the motor passes through the top of the mounting seat and is connected to the stopper, and the stopper is driven to rotate on the mounting seat by the motor.
3. A laser protection device according to claim 1, characterized in that: The mounting seat is provided with a limiting column, two limiting columns are used to form an active area, and the stopper is arranged in the active area.
4. A laser protection device according to claim 1, characterized in that: The mounting seat is fixed with a torsion spring, the torsion spring and the stopper are fixed, and the stopper returns to its original position by the torsion spring after being moved.
5. A laser protection device according to claim 4, characterized in that: The mounting seat is provided with a fixing sleeve, one end of the torsion spring is fixed in the fixing sleeve, a fixing column is provided at the bottom of the stopper, two fixing columns form a gap, and the other end of the torsion spring is limited in the gap.
6. A laser protection device according to claim 1, characterized in that: The mounting seat is provided with a sensor, and the sensor is used to sense the position of the stopper after the movement.
7. A laser protection device according to claim 6, characterized in that: The mounting seat is provided with a connecting plate, and the sensor is fixed on the connecting plate by two nuts.