Laser head protection mechanism for ultraviolet laser

Abstract

The utility model relates to a laser head protection mechanism for an ultraviolet laser, and relates to the field of ultraviolet lasers, the laser head protection mechanism comprises a machine body, a protection cover is slidably connected to the machine body, the protection cover covers the outer surface of a laser head, and a through hole is formed in the protection cover; limiting holes are formed in the two sides of the protective cover, two limiting seats are fixedly connected to the machine body and located on the two sides of the laser head, limiting rods are fixedly connected to the opposite side walls of the two limiting seats correspondingly, and the two limiting rods penetrate through the two limiting holes correspondingly and extend out of the outer side of the protective cover; an elastic connecting structure is fixedly connected between the protective cover and the machine body; and a switch button, a locking mechanism, an impact sensing module and an audible and visual alarm. The laser head can be well protected, and the situation that the laser head is damaged is reduced.

Description

Technical Field

[0001] The present application relates to the field of ultraviolet lasers, and in particular to a laser head protection mechanism for ultraviolet lasers. Background Art

[0002] Ultraviolet laser is a laser that can generate ultraviolet light beams. Ultraviolet lasers are widely used in advanced research, development, industrial manufacturing equipment, biotechnology, medical and other fields due to their small spot size, narrow pulse width and short wavelength.

[0003] Among them, the ultraviolet laser is generally composed of a body and a laser head. The laser head is mostly directly exposed to the laser emission outlet outside the body. Since the laser head is exposed to the outside of the body, if the ultraviolet laser is subjected to collision or impact during use, it is easy to cause damage to the optical module inside the laser head, which has an adverse effect on the accuracy of the ultraviolet laser. There is room for improvement. Utility Model Content

[0004] In order to provide effective protection for the laser head of an ultraviolet laser, the present application provides a laser head protection mechanism for an ultraviolet laser.

[0005] The present application provides a laser head protection mechanism for ultraviolet lasers using the following technical solutions:

[0006] A laser head protection mechanism for an ultraviolet laser comprises a body, a protective cover is slidably connected to the body, the protective cover covers the outer surface of the laser head, and a through hole is opened on the protective cover;

[0007] Limiting holes are provided on both sides of the protective cover, and two limiting seats are fixedly connected to the body, the two limiting seats are located on both sides of the laser head, and limiting rods are fixedly connected to the opposite side walls of the two limiting seats, and the two limiting rods respectively penetrate the two limiting holes and extend out of the protective cover; an elastic connection structure is fixedly connected between the protective cover and the body; and:

[0008] A switch button, mounted on the machine body, for inputting a start signal;

[0009] A locking mechanism, fixedly mounted on the top of the machine body, signal-connected to the signal output end of the switch button, and used to receive the start signal and lock the protective cover;

[0010] An impact sensing module, fixedly mounted on the surface of the protective cover, signal-connected to the signal output end of the switch button, and configured to receive the start signal and output an impact sensing signal when an impact is sensed;

[0011] An audible and visual alarm, fixedly mounted on the protective cover and connected to the signal output terminal of the impact sensing module, for receiving the impact sensing signal and emitting a warning sound and flash;

[0012] The signal input end of the locking mechanism is signal-connected to the signal output end of the impact sensing module, and the locking mechanism receives the impact sensing signal and releases the protective cover.

[0013] By adopting the above technical solution, when using an ultraviolet laser, the operator can push the laser head to move until the laser head is exposed from the through hole on the protective cover, and then the operator activates the locking mechanism through the switch button, and the locking mechanism can lock the protective cover to ensure that the through hole is fixed in position; in actual use, when the surface of the protective cover is hit, the impact sensing module on the surface of the protective cover controls the locking mechanism to release the protective cover, and the protective cover is restored to the initial position by the elastic connection structure, and the through hole and the laser emitting end of the laser head are misaligned, and the laser head is blocked in the protective cover. At the same time, the sound and light alarm emits a warning sound and flash, which can realize the operation of automatically sensing the impact and automatically blocking the laser head, effectively reducing the occurrence of damage to the laser head. In addition, by setting the limit seat, the sliding trajectory of the protective cover can be restricted, and the stability of the sliding action of the protective cover can be improved.

[0014] Preferably, the mechanism comprises two electromagnetic locks arranged opposite to each other, the two electromagnetic locks are fixedly mounted on the top of the body, and the driving ends of the two electromagnetic locks are respectively fixedly connected with telescopic rods;

[0015] The signal input ends of the two electromagnetic locks are connected to the signal output ends of the switch button, and the two electromagnetic locks receive the start signal and drive the telescopic rods to extend into the limiting holes on both sides of the protective cover.

[0016] By adopting the above technical solution, when the operator pushes the protective cover to expose the laser head, the electromagnetic lock can be controlled by the switch button to extend the telescopic rod at the same time. The telescopic rod extends into the limit holes on both sides of the protective cover, and the position of the protective cover can be positioned to ensure that the laser head is exposed during use.

[0017] Preferably, the ends of the two telescopic rods close to the protective cover are both arranged in a dome shape.

[0018] By adopting the above technical solution, the dome-shaped arrangement of the telescopic rod can reduce the occurrence of collision between the telescopic rod and the inner wall of the limiting hole when the telescopic rod is extended into the limiting holes on both sides of the protective cover.

[0019] Preferably, the impact sensing module comprises a plurality of thin film pressure sensors fixedly mounted on the surface of the protective cover, and the plurality of thin film pressure sensors receive the start signal and respectively output sensing pressure signals;

[0020] The signal output ends of the plurality of the thin film pressure sensors are connected to a single chip microcomputer, the single chip microcomputer receives the plurality of the sensing pressure signals, and outputs the impact sensing signal when any sensing pressure value is greater than a set pressure value;

[0021] The signal input ends of the two electromagnetic locks are connected to the signal output end of the single chip microcomputer, and the two electromagnetic locks receive the impact sensing signal and drive the two telescopic rods to reset.

[0022] By adopting the above technical solution, through the thin film pressure sensor on the surface of the protective cover, when a foreign object hits the protective cover, the induced pressure value measured by the thin film pressure sensor increases, and the single-chip microcomputer can control the two electromagnetic locks to retract the telescopic rods, release the protective cover, and the elastic connection structure pulls the protective cover to automatically return to the initial position, so that the through hole and the laser head are misaligned, automatically blocking the foreign object.

[0023] Preferably, two first connecting plates are fixedly connected to the machine body, and the two first connecting plates are respectively located on both sides of the protective cover, and the two sides of the protective cover are respectively fixedly connected with second connecting plates, and the two second connecting plates are respectively mounted above the two first connecting plates;

[0024] The elastic connection structure comprises two springs, and two ends of the two springs are fixedly connected to the first connection plate and the second connection plate respectively;

[0025] The two second connecting plates are respectively fixedly connected with positioning rods, the two springs are respectively coaxially sleeved on the two positioning rods, the two first connecting plates are respectively provided with sliding holes adapted to the positioning rods, the two positioning rods respectively penetrate the two sliding holes, and the ends of the two positioning rods extending out of the sliding holes are respectively fixedly connected with anti-dropping blocks.

[0026] By adopting the above technical solution, when the operator pushes the protective cover to expose the laser head from the through hole, the second connecting plate moves toward the direction of the first connecting plate, and the spring stretches; when the thin film pressure sensor on the outer surface of the protective cover senses a collision with a foreign object, the electromagnetic lock releases the protective cover, and the spring retracts to drive the protective cover back to its initial position, thereby achieving the technical effect of automatically shielding and protecting the laser head.

[0027] Preferably, a T-shaped slide groove is provided on the surface of the machine body, and T-shaped sliding blocks are fixedly connected to the side walls of the protective cover, and two T-shaped sliding blocks are slidably disposed in the two T-shaped slide grooves respectively.

[0028] By adopting the above technical solution, the arrangement of the T-shaped slider and the T-shaped slide groove can achieve the technical effect of sliding connection between the protective cover and the machine body.

[0029] Preferably, two vertical plates are fixedly connected to the machine body, and circular holes for the telescopic rod to slide are respectively opened on the two vertical plates, and the telescopic rod slides along the circular holes.

[0030] By adopting the above technical solution, the circular hole can limit the position of the telescopic rod, reduce the occurrence of bending of the telescopic rod due to pressure, and ensure that the telescopic rod slides back and forth along a straight line.

[0031] In summary, the laser head protection mechanism for ultraviolet laser of the present application includes at least one of the following beneficial technical effects:

[0032] 1. When using the ultraviolet laser, the operator can push the laser head to move until the laser head is exposed from the through hole on the protective cover, and then the operator activates the locking mechanism through the switch button, which can lock the protective cover to ensure that the through hole is fixed in position; in actual use, when the surface of the protective cover is hit, the impact sensing module on the surface of the protective cover controls the locking mechanism to release the protective cover, and the protective cover is restored to the initial position by the elastic connection structure. The through hole and the laser emitting end of the laser head are misaligned, and the laser head is shielded in the protective cover to realize the operation of automatically sensing the impact and automatically shielding the laser head, effectively reducing the occurrence of damage to the laser head;

[0033] 2. Through the setting of the sound and light alarm, when the protective cover on the outside of the laser head is hit and the elastic connection structure pulls the protective cover to reset to cover the laser head, the sound and light alarm emits a warning sound and flashes, which can promptly prompt the on-site operator to take relevant remedial measures. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of an embodiment of the present application for illustrating the overall structure of the protection mechanism.

[0035] Figure 2 It is a schematic diagram of an embodiment of the present application for illustrating the internal structure of the protective cover.

[0036] Figure 3 It is a schematic diagram of an embodiment of the present application for illustrating the connection structure between the protective cover and the body.

[0037] Explanation of the accompanying drawings: 1. Body; 11. Limit seat; 12. Limit rod; 13. First connecting plate; 14. T-shaped slide; 2. Protective cover; 21. Through hole; 22. Limit hole; 23. Second connecting plate; 24. T-shaped slide; 15. Vertical plate; 151. Round hole; 3. Laser head; 4. Elastic connection structure; 41. Spring; 42. Positioning rod; 43. Anti-slip block; 5. Locking mechanism; 51. Electromagnetic lock; 52. Telescopic rod; 6. Sound and light alarm; 7. Thin film pressure sensor; 8. Switch button. DETAILED DESCRIPTION

[0038] The following is combined with Figure 1-3 This application is described in further detail.

[0039] Example

[0040] The present application embodiment discloses a laser head protection mechanism for an ultraviolet laser. Figure 1 , which mainly includes a body 1, a protective cover 2 is slidably connected to the body 1, the protective cover 2 covers the outer surface of the laser head 3, and a through hole 21 is opened on the protective cover 2;

[0041] Limiting holes 22 are provided on both sides of the protective cover 2, and two limiting seats 11 are fixedly connected to the body 1. The two limiting seats 11 are located on both sides of the laser head 3, and limiting rods 12 are fixedly connected to the opposite side walls of the two limiting seats 11. The two limiting rods 12 respectively penetrate the two limiting holes 22 and extend out of the outside of the protective cover 2; an elastic connecting structure 4 is fixedly connected between the protective cover 2 and the body 1.

[0042] And: a switch button 8, installed on the body 1, for inputting a start signal; a locking mechanism 5, fixedly installed on the top of the body 1, signal-connected to the signal output end of the switch button 8, for receiving the start signal and locking the protective cover 2; an impact sensing module, fixedly installed on the surface of the protective cover 2, signal-connected to the signal output end of the switch button 8, for receiving the start signal and outputting an impact sensing signal when sensing an impact; an audible and visual alarm 6, fixedly installed on the protective cover 2, signal-connected to the signal output end of the impact sensing module, for receiving the impact sensing signal and emitting a warning sound and flash; the signal input end of the locking mechanism 5 is signal-connected to the signal output end of the impact sensing module, and the locking mechanism 5 receives the impact sensing signal and releases the protective cover 2.

[0043] When using an ultraviolet laser, the operator can push the laser head 3 to move until the laser head 3 is exposed from the through hole 21 on the protective cover 2, and then the operator activates the locking mechanism 5 through the switch button 8, and the locking mechanism 5 can lock the protective cover 2 to ensure that the position of the through hole 21 is fixed; in actual use, when the surface of the protective cover 2 is impacted, the impact sensing module on the surface of the protective cover 2 controls the locking mechanism 5 to release the protective cover 2, and the protective cover 2 is restored to its initial position by the elastic connection structure 4, and the through hole 21 is misaligned with the laser emitting end of the laser head 3, and the laser head 3 is blocked in the protective cover 2. At the same time, the sound and light alarm 6 emits a warning sound and flashes, which can realize the operation of automatically sensing the impact and automatically blocking the laser head 3, and effectively reduce the occurrence of damage to the laser head 3.

[0044] In addition, by disposing the limiting seat 11 , the sliding track of the protective cover 2 can be restricted, thereby improving the stability of the sliding action of the protective cover 2 .

[0045] Reference Figure 1 and Figure 3The mechanism adopts two electromagnetic locks 51 arranged opposite to each other. The two electromagnetic locks 51 are fixedly installed on the top of the body 1, and the driving ends of the two electromagnetic locks 51 are respectively fixedly connected with telescopic rods 52; the signal input ends of the two electromagnetic locks 51 are connected with the signal output ends of the switch button 8, and the two electromagnetic locks 51 receive the start signal and drive the telescopic rods 52 to extend into the limit holes 22 on both sides of the protective cover 2.

[0046] When the operator pushes the protective cover 2 to expose the laser head 3, the switch button 8 can be used to control the electromagnetic lock 51 to extend the telescopic rod 52 at the same time. The telescopic rod 52 extends into the limiting holes 22 on both sides of the protective cover 2, so as to position the protective cover 2 to ensure that the laser head 3 is exposed during use.

[0047] Reference Figure 1 The ends of the two telescopic rods 52 near the protective cover 2 are both dome-shaped. The dome-shaped arrangement of the telescopic rods 52 can reduce the occurrence of collisions between the telescopic rods 52 and the inner walls of the limiting holes 22 when the telescopic rods 52 extend into the limiting holes 22 on both sides of the protective cover 2.

[0048] In the embodiment of the present application, the impact sensing module adopts a plurality of thin film pressure sensors 7 fixedly mounted on the surface of the protective cover 2, and the plurality of thin film pressure sensors 7 receive a start signal and output sensing pressure signals respectively; the signal output ends of the plurality of thin film pressure sensors 7 are connected to a single chip microcomputer, and the single chip microcomputer receives a plurality of sensing pressure signals and outputs an impact sensing signal when any sensing pressure value is greater than a set pressure value; the signal input ends of the two electromagnetic locks 51 are connected to the signal output ends of the single chip microcomputer, and the two electromagnetic locks 51 receive the impact sensing signal and drive the two telescopic rods 52 to reset.

[0049] Through the thin film pressure sensor 7 on the surface of the protective cover 2, when a foreign object hits the protective cover 2, the induced pressure value measured by the thin film pressure sensor 7 increases, and the single chip microcomputer can control the two electromagnetic locks 51 to retract the telescopic rod 52, release the protective cover 2, and the elastic connection structure 4 pulls the protective cover 2 to automatically return to the initial position, so that the through hole 21 and the laser head 3 are misaligned, and the foreign object is automatically blocked.

[0050] The thin film pressure sensor 7 is fixed to the outer surface and the side wall surface of the protective cover 2 by pasting, and can be modified according to the position prone to collision on site during actual use, which is not limited here.

[0051] Reference Figure 1Two first connecting plates 13 are fixedly connected to the body 1, and the two first connecting plates 13 are respectively located on both sides of the protective cover 2, and second connecting plates 23 are respectively fixedly connected to both sides of the protective cover 2, and the two second connecting plates 23 are respectively mounted above the two first connecting plates 13; the elastic connection structure 4 includes two springs 41, and the two ends of the two springs 41 are respectively fixedly connected to the first connecting plate 13 and the second connecting plate 23.

[0052] The two second connecting plates 23 are respectively fixedly connected with positioning rods 42, and the two springs 41 are respectively coaxially sleeved on the two positioning rods 42. The two first connecting plates 13 are respectively provided with sliding holes adapted to the positioning rods 42. The two positioning rods 42 respectively penetrate the two sliding holes, and the ends of the two positioning rods 42 extending out of the sliding holes are respectively fixedly connected with anti-slip blocks 43.

[0053] When the operator pushes the protective cover 2 to expose the laser head 3 from the through hole 21, the second connecting plate 23 moves toward the direction of the first connecting plate 13, and the spring 41 stretches; when the thin film pressure sensor 7 on the outer surface of the protective cover 2 senses a collision with a foreign object, the electromagnetic lock 51 releases the protective cover 2, and the spring 41 retracts to drive the protective cover 2 back to its initial position, thereby achieving the technical effect of automatically shielding and protecting the laser head 3.

[0054] During the extension and retraction of the spring 41, the positioning rod 42 can limit the deformation direction of the spring 41, thereby ensuring the stability of the recovery action of the protective cover 2 and reducing the occurrence of irreversible deformation of the spring 41. At the same time, the anti-detachment block 43 can reduce the occurrence of the positioning rod 42 being detached from the first connecting plate 13.

[0055] Reference Figure 3 The surface of the machine body 1 is provided with a T-shaped slide groove 14, and the side walls of the protective cover 2 are respectively fixedly connected with T-shaped sliders 24, and the two T-shaped sliders 24 are respectively slidably arranged in the two T-shaped slide grooves 14. The arrangement of the T-shaped slider 24 and the T-shaped slide groove 14 can achieve the technical effect of sliding connection between the protective cover 2 and the machine body 1.

[0056] Reference Figure 1 Two vertical plates 15 are fixedly connected to the machine body 1, and circular holes 151 are respectively provided on the two vertical plates 15 for the telescopic rod 52 to slide, and the telescopic rod 52 slides along the circular holes 151. The circular holes 151 can limit the position of the telescopic rod 52, reduce the occurrence of bending of the telescopic rod 52 under pressure, and ensure that the telescopic rod 52 slides back and forth along a straight line.

[0057] The implementation principle of the laser head protection mechanism for an ultraviolet laser in the embodiment of the present application is as follows: when using the ultraviolet laser, the operator can push the laser head 3 to move until the laser head 3 is exposed from the through hole 21 on the protective cover 2, and then the operator activates the locking mechanism 5 through the switch button 8, and the locking mechanism 5 can lock the protective cover 2 to ensure that the position of the through hole 21 is fixed; in actual use, when the surface of the protective cover 2 is impacted, the impact sensing module on the surface of the protective cover 2 controls the locking mechanism 5 to release the protective cover 2, and the protective cover 2 is restored to its initial position by the elastic connection structure 4, and the through hole 21 is misaligned with the laser emitting end of the laser head 3. The laser head 3 is shielded in the protective cover 2 to realize the operation of automatically sensing the impact and automatically shielding the laser head 3, thereby effectively reducing the occurrence of damage to the laser head 3.

[0058] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A laser head protection mechanism for an ultraviolet laser, characterized in that: It comprises a body (1), a protective cover (2) is slidably connected to the body (1), the protective cover (2) covers the outer surface of the laser head (3), and a through hole (21) is opened on the protective cover (2); Limiting holes (22) are provided on both sides of the protective cover (2); two limiting seats (11) are fixedly connected to the body (1); the two limiting seats (11) are located on both sides of the laser head (3); limiting rods (12) are fixedly connected to the opposite side walls of the two limiting seats (11); the two limiting rods (12) respectively penetrate the two limiting holes (22) and extend out of the outside of the protective cover (2); an elastic connection structure (4) is fixedly connected between the protective cover (2) and the body (1); and: A switch button (8) is mounted on the machine body (1) and is used to input a start signal; A locking mechanism (5) is fixedly mounted on the top of the machine body (1) and is signal-connected to the signal output end of the switch button (8) for receiving the start signal and locking the protective cover (2); An impact sensing module, fixedly mounted on the surface of the protective cover (2), signal-connected to the signal output end of the switch button (8), and used for receiving the start signal and outputting an impact sensing signal when an impact is sensed; An audible and visual alarm (6), fixedly mounted on the protective cover (2), and connected to the signal output end of the impact sensing module, for receiving the impact sensing signal and emitting a warning sound and a flash; The signal input end of the locking mechanism (5) is signal-connected to the signal output end of the impact sensing module, and the locking mechanism (5) receives the impact sensing signal and releases the protective cover (2).

2. The laser head protection mechanism for ultraviolet laser according to claim 1, characterized in that: The mechanism comprises two electromagnetic locks (51) arranged opposite to each other, the two electromagnetic locks (51) are fixedly mounted on the top of the machine body (1), and the driving ends of the two electromagnetic locks (51) are respectively fixedly connected to telescopic rods (52); The signal input ends of the two electromagnetic locks (51) are signal-connected to the signal output ends of the switch button (8); the two electromagnetic locks (51) receive the start signal and drive the telescopic rods (52) to extend into the limiting holes (22) on both sides of the protective cover (2).

3. The laser head protection mechanism for ultraviolet laser according to claim 2, characterized in that: The ends of the two telescopic rods (52) close to the protective cover (2) are both arranged in a dome shape.

4. The laser head protection mechanism for ultraviolet laser according to claim 2, characterized in that: The impact sensing module comprises a plurality of thin film pressure sensors (7) fixedly mounted on the surface of the protective cover (2), wherein the plurality of thin film pressure sensors (7) receive the start signal and respectively output sensing pressure signals; The signal output ends of the plurality of thin film pressure sensors (7) are connected to a single chip microcomputer, the single chip microcomputer receives the plurality of sensing pressure signals, and outputs the impact sensing signal when any sensing pressure value is greater than a set pressure value; The signal input ends of the two electromagnetic locks (51) are signal-connected to the signal output end of the single-chip computer, and the two electromagnetic locks (51) receive the impact sensing signal and drive the two telescopic rods (52) to reset.

5. The laser head protection mechanism for ultraviolet laser according to claim 1, characterized in that: Two first connecting plates (13) are fixedly connected to the machine body (1), and the two first connecting plates (13) are respectively located on two sides of the protective cover (2), and second connecting plates (23) are respectively fixedly connected to the two sides of the protective cover (2), and the two second connecting plates (23) are respectively mounted above the two first connecting plates (13); The elastic connection structure (4) comprises two springs (41), and two ends of the two springs (41) are respectively fixedly connected to the first connection plate (13) and the second connection plate (23); The two second connecting plates (23) are respectively fixedly connected with positioning rods (42), the two springs (41) are respectively coaxially sleeved on the two positioning rods (42), the two first connecting plates (13) are respectively provided with sliding holes adapted to the positioning rods (42), the two positioning rods (42) respectively penetrate the two sliding holes, and the ends of the two positioning rods (42) extending out of the sliding holes are respectively fixedly connected with anti-dropping blocks (43).

6. The laser head protection mechanism for ultraviolet laser according to claim 5, characterized in that: A T-shaped slide groove (14) is provided on the surface of the machine body (1), and T-shaped sliders (24) are fixedly connected to the side walls of the protective cover (2), and the two T-shaped sliders (24) are slidably arranged in the two T-shaped slide grooves (14) respectively.

7. The laser head protection mechanism for ultraviolet laser according to claim 2, characterized in that: Two vertical plates (15) are fixedly connected to the machine body (1), and circular holes (151) for sliding of the telescopic rod (52) are respectively opened on the two vertical plates (15), and the telescopic rod (52) slides along the circular holes (151).

Images