Optical path sealing device and laser equipment

Abstract

The utility model discloses an optical path sealing device and a laser device, which relates to the technical field of laser devices, wherein the optical path sealing device comprises a housing, including an outer shell and a cover plate, the outer shell is integrally formed and has a receiving cavity with an opening on one side, the cover plate is detachably connected to the outer shell at the opening to seal the receiving cavity; a calibration component is arranged in the receiving cavity to calibrate the light beam; and a visual panel is arranged at the opening and fixedly connected to the outer shell, the visual panel is arranged between the outer shell and the cover plate. The technical solution provided by the utility model can directly observe the cleanliness of the internal receiving cavity and improve the efficiency of optical path calibration.

Description

Technical Field

[0001] The utility model relates to the technical field of laser equipment, in particular to an optical path sealing device and laser equipment. Background Art

[0002] The optical path system in the laser equipment is responsible for guiding, adjusting and focusing the laser beam to meet specific processing, cutting, engraving, marking or measurement requirements. It includes lasers, beam transmission components, optical correction devices and sealing structures. The beam is adjusted through the beam transmission components and correction devices to ensure that the laser energy is transmitted in the most efficient way and to achieve the required power density and focal position at the processing point to achieve high-quality processing effects. In the process of beam propagation, good sealing is required to stabilize the laser performance and ensure the safety of laser operations. However, when calibrating the beam direction, the current structure has low work efficiency due to calibration in a closed environment. Utility Model Content

[0003] The main purpose of the utility model is to provide an optical path sealing device and a laser device, aiming to improve the efficiency of calibrating the laser beam during the transmission process.

[0004] In order to achieve the above-mentioned purpose, the optical path sealing device proposed by the utility model comprises:

[0005] The housing comprises an outer shell and a cover plate, wherein the outer shell is integrally formed and has a receiving cavity with an opening on one side, and the cover plate is detachably connected to the outer shell at the opening to seal the receiving cavity;

[0006] a calibration component, disposed in the accommodating cavity to calibrate the light beam; and

[0007] A visual panel is arranged at the opening and fixedly connected to the shell. The visual panel is arranged between the shell and the cover plate.

[0008] In one embodiment, the housing comprises a laser inlet and a laser outlet, and the calibration assembly further comprises:

[0009] A first reflection cavity, connected to the laser inlet and the accommodating cavity respectively;

[0010] A second reflective cavity, connected to the laser outlet and the accommodating cavity respectively;

[0011] A calibration frame, disposed in the accommodating cavity;

[0012] Among them, the laser enters the first reflection cavity from the laser inlet and is reflected to the accommodating cavity in the first reflection cavity. The light beam reflected by the first reflection cavity passes through the calibration frame and enters the second reflection cavity for secondary reflection and flows out from the laser outlet.

[0013] In one embodiment, the calibration component further includes a reflector, and two reflectors are provided, and the two reflectors are respectively disposed in the first reflective cavity and the second reflective cavity.

[0014] In one embodiment, the housing further comprises a first passage, a second passage, a third passage, and a fourth passage;

[0015] The axes of the first passage and the second passage are perpendicular, the first passage connects the laser inlet with the first reflective cavity, and the second passage connects the accommodating cavity with the first reflective cavity;

[0016] The axes of the third passage and the fourth passage are perpendicular, the third passage connects the laser outlet and the second reflection cavity, and the fourth passage connects the accommodating cavity and the second reflection cavity;

[0017] Wherein, the axes of the first passage and the third passage are parallel.

[0018] In one embodiment, the optical path sealing device further includes an adjusting screw, one end of which is located outside the accommodating cavity, and the other end of which is connected to the reflector.

[0019] In one embodiment, the optical path sealing device further comprises a mounting shell, which is disposed outside the accommodating cavity and connected to the outer shell to cover the adjusting screw.

[0020] In one embodiment, a groove is provided along the circumference of the opening on one side of the shell where the opening is provided, and the viewing plate and the cover plate are provided in the groove and connected to the shell.

[0021] In one embodiment, the optical path sealing device further includes a sealing rubber pad, and the sealing rubber pad is arranged between the slot and the visual panel.

[0022] In one embodiment, a plurality of grooves are provided on the top and bottom of the housing.

[0023] The utility model also provides a laser device, comprising the optical path sealing device as described above.

[0024] In the technical solution of the utility model, the optical path sealing device includes a shell, a calibration component and a visual panel. The shell includes an outer shell, and the outer shell includes multiple side panels and a bottom plate. The multiple side panels are connected to the upper part of the bottom plate and enclose a receiving cavity. The multiple side panels are integrally formed with the bottom plate to improve the sealing of the shell. The upper part of the receiving cavity is open. By placing a calibration component in the receiving cavity, the light beam emitted by the laser enters the receiving cavity, and the direction of the light beam is calibrated by the calibration component. The visual panel is arranged at the opening. When the calibration component calibrates the light beam, the calibration process can be directly observed through the visual panel. When the optical path is roughly aligned, the size and position of the emitted light spot are checked through the galvanometer for fine adjustment, thereby improving the efficiency of the optical path calibration. After the calibration is completed, the cover plate is buckled on the top of the visual panel, and the cover plate is connected to the outer shell to prevent the laser beam from overflowing and ensure the safety of the laser operation. In addition, after the optical path sealing device has been used for a long time, the cleanliness of the internal receiving cavity can be directly observed through the visual panel to decide whether to disassemble it for cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0026] Figure 1 A structural schematic diagram of an embodiment of an optical path sealing device provided by the utility model;

[0027] Figure 2 This is a structural schematic diagram of another embodiment of the optical path sealing device provided by the utility model.

[0028] Description of Figure Numbers:

[0029] 100, housing; 110, shell; 111, laser inlet; 112, laser outlet; 113, second passage; 114, slot; 115, groove; 120, cover plate;

[0030] 200, calibration frame;

[0031] 300, visual board;

[0032] 400. Install the shell.

[0033] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0036] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0037] The optical path system in the laser equipment is responsible for guiding, adjusting and focusing the laser beam to meet specific processing, cutting, engraving, marking or measurement requirements. It includes lasers, beam transmission components, optical correction devices and sealing structures. The beam is adjusted through the beam transmission components and correction devices to ensure that the laser energy is transmitted in the most efficient way and to achieve the required power density and focal position at the processing point to achieve high-quality processing effects. In the process of beam propagation, good sealing is required to stabilize the laser performance and ensure the safety of laser operations. However, when calibrating the beam direction, the current structure has low work efficiency due to calibration in a closed environment.

[0038] The utility model provides an optical path sealing device and laser equipment.

[0039] See also Figure 1 In one embodiment of the utility model, the optical path sealing device comprises:

[0040] The housing 100 includes a shell 110 and a cover plate 120. The shell 110 is integrally formed and has a receiving cavity with an opening on one side. The cover plate 120 is detachably connected to the shell 110 at the opening to seal the receiving cavity.

[0041] A calibration component is disposed in the accommodating cavity to calibrate the light beam; and

[0042] The visual panel 300 is disposed at the opening and fixedly connected to the housing 110 . The visual panel 300 is disposed between the housing 110 and the cover plate 120 .

[0043] In the technical solution of the utility model, the optical path sealing device includes a shell 100, a calibration component and a visual panel 300, the shell 100, the shell 100 includes an outer shell 110, the outer shell 110 includes a plurality of side panels and a bottom plate, the plurality of side panels are connected to the upper part of the bottom plate, and enclose a receiving cavity, the plurality of side panels and the bottom plate are integrally formed to improve the sealing performance of the shell 110, the upper part of the receiving cavity is open, by placing a calibration component in the receiving cavity, the light beam emitted by the laser enters the receiving cavity, and the direction of the light beam is calibrated by the calibration component, the visual panel 300 is arranged at the opening, when the calibration component is When the alignment component calibrates the light beam, the calibration process can be directly observed through the visual plate 300. When the light path is roughly aligned, the size and position of the light spot are checked through the galvanometer for fine adjustment, thereby improving the efficiency of the light path calibration. After the calibration is completed, the cover 120 is snapped onto the visual plate 300, and the cover 120 is connected to the housing 110 to prevent the laser beam from overflowing and ensure the safety of the laser operation. In addition, after the light path sealing device has been used for a long time, the cleanliness of the internal cavity can be directly observed through the visual plate 300 to decide whether to disassemble it for cleaning.

[0044] Specifically, the shell 100 can be a square structure or an irregularly shaped structure. The shell 110 includes a accommodating cavity with an opening upward, and the side panels of the shell 110 are integrally formed with the bottom plate, and cooperate with the cover plate 120 to improve the sealing of the accommodating cavity, which can reduce the entry of dust during later use and reduce the frequency of cleaning. In addition, the material of the visual panel 300 can be acrylic panel or glass panel but is not limited to these two materials. The acrylic panel has high light transmittance, light weight, is not easy to break, and has strong aging resistance. It can maintain good performance under long-term laser irradiation, is not easy to discolor and age, and can maintain stable physical and chemical properties within a wide temperature range, and has a wide applicability.

[0045] In an embodiment of the present invention, the housing 110 includes a laser inlet 111 and a laser outlet 112, and the calibration component further includes:

[0046] The first reflection cavity is connected to the laser inlet 111 and the accommodating cavity respectively;

[0047] The second reflection cavity is connected to the laser outlet 112 and the accommodating cavity respectively;

[0048] The calibration frame 200 is disposed in the accommodating cavity;

[0049] The laser enters the first reflection cavity from the laser inlet 111 and is reflected to the accommodating cavity in the first reflection cavity. The light beam reflected by the first reflection cavity passes through the calibration frame 200 and enters the second reflection cavity for secondary reflection and flows out from the laser outlet 112.

[0050] Please refer to Figure 1 A first reflection cavity and a second reflection cavity are arranged on both sides of the length direction of the accommodating cavity, and a calibration frame 200 is placed in the accommodating cavity for calibrating the optical path. The laser enters the first reflection cavity through the laser inlet 111, and the light beam is reflected once in the first reflection cavity and enters the accommodating cavity, and passes through the calibration frame 200 to enter the second reflection cavity for secondary reflection. The reflected light beam flows out from the laser outlet 112, wherein the calibration frame 200 has a light-through hole, and a cross structure is arranged at the light-through hole. The two sides of the light-through hole correspond to the first reflection cavity and the second reflection cavity, that is, the centers of the first reflection cavity and the second reflection cavity are connected to form A straight line passes through the middle of the cross, and the light beam after one reflection passes through the light-transmitting hole into the second reflective cavity. The cross-shaped hole provides two mutually perpendicular direction references, which improves the accuracy of the initial calibration of the light beam direction, and the light beam transmitted through the cross structure is intuitively visible. If the light beam passing through the light-transmitting hole is deflected, the light beam can be directly calibrated until the light path is aligned with the naked eye, and then fine-tuned through the galvanometer. After all adjustments are completed, open the visual panel 300, take out the calibration frame 200, and then install the visual panel 300 and the cover plate 120 on the outer shell 110 in sequence to close the accommodating cavity.

[0051] In an embodiment of the present utility model, the calibration component further includes a reflector, and two reflectors are provided, and the two reflectors are respectively arranged in the first reflective cavity and the second reflective cavity.

[0052] Specifically, a reflector is respectively arranged in the first reflective cavity and the second reflective cavity. When the laser enters the first reflective cavity, it is reflected by the reflector. The reflected light beam passes through the light-transmitting hole on the calibration frame 200 and enters the second reflective cavity for secondary reflection by the reflector. The reflector can change the propagation direction of the laser to ensure that the light beam is correctly directed to the target position. When the light beam is significantly deviated from the light-transmitting hole, the angle of the first reflector is adjusted. After the preliminary adjustment is completed, fine adjustment is performed through the galvanometer. If there is a deviation, the light path is adjusted by finely adjusting the reflectors in the first reflective cavity and the second reflective cavity.

[0053] In an embodiment of the present invention, the housing 110 further includes a first passage, a second passage 113, a third passage, and a fourth passage;

[0054] The axes of the first passage and the second passage 113 are perpendicular, the first passage connects the laser inlet 111 and the first reflection cavity, and the second passage 113 connects the accommodating cavity and the first reflection cavity;

[0055] The axes of the third passage and the fourth passage are perpendicular, the third passage connects the laser outlet 112 and the second reflection cavity, and the fourth passage connects the accommodating cavity and the second reflection cavity;

[0056] The axes of the first passage and the third passage are parallel.

[0057] Please refer to Figure 1 The first reflection cavity and the second reflection cavity are respectively located on both sides of the accommodating cavity. The first reflection cavity and the laser entrance 111 are connected through the first passage. The second passage 113 connects the first reflection cavity and the accommodating cavity. The axes of the first passage and the second passage 113 are perpendicular, that is, the reflection angle is only related to the position and angle of the reflector. The laser outlet 112 and the second reflection cavity are connected through the third passage. The fourth passage connects the second reflection cavity and the accommodating cavity. After one reflection, the light beam passes through the second passage 113 and enters the second reflection cavity through the fourth passage for reflection. The central axis of the second passage 113 and the fourth passage is a straight line, and the corresponding central axis of the first passage is parallel to the central axis of the third passage.

[0058] In an embodiment of the present utility model, the optical path sealing device further comprises an adjusting screw, one end of which is located outside the accommodating cavity and the other end of which is connected to the reflecting mirror.

[0059] Specifically, one end of the adjusting screw is located outside the housing 110, and the other end passes through the housing 110 into the first accommodating cavity / the second accommodating cavity to be connected to the reflector. The position and angle of the reflector are precisely adjusted by rotating the adjusting screw to ensure the correct guidance, focusing and beam quality of the laser beam. The adjusting screws include but are not limited to XY adjusting screws, Z-axis adjusting screws, pitch and yaw adjusting screws, roll adjusting screws and fine-tuning screws. The XY adjusting screw is used to move the reflector on the X-axis and Y-axis to ensure that the light beam is correctly aligned with the target position. The Z-axis adjusting screw controls the movement of the reflector along the Z-axis for focusing adjustment to ensure that the optimal state is achieved. The pitch and yaw adjusting screws are used to adjust the tilt angle and rotation angle of the reflector to ensure that the light beam direction is correct to correct the optical path offset. The roll adjustment screw is used to adjust the rolling angle of the reflector to ensure that the light beam is parallel or aligned within a specific plane. The fine-tuning screw is used for high-precision adjustment.

[0060] In an embodiment of the present invention, the optical path sealing device further includes a mounting shell 400 , which is disposed outside the accommodating cavity and connected to the outer shell 110 to cover the adjusting screw.

[0061] Please refer to Figure 1 and Figure 2 The mounting shell 400 is mounted on the outer shell 110 by screws. The mounting shell 400 extends in a direction away from the outer shell 110 so that a mounting cavity is formed between the mounting shell 400 and the outer shell 110. The adjusting screw is located in the mounting cavity. The mounting shell 400 and the outer shell 110 cooperate to cover the adjusting screw. When the position and direction of the reflector need to be adjusted, the mounting shell 400 is opened and the adjusting screw is turned. After the adjustment is completed, the mounting shell 400 is mounted on the outer shell 110 to protect the adjusting screw.

[0062] In the embodiment of the present invention, a groove 114 is provided along the circumference of the opening on one side of the housing 110 , and the viewing panel 300 and the cover panel 120 are disposed in the groove 114 and connected to the housing 110 .

[0063] Please refer to Figure 1 A groove 114 is provided along the outer periphery of the opening, and the visual panel 300 and the cover panel 120 are sequentially installed in the groove 114 and fixedly connected to improve the stability of the connection with the visual panel 300.

[0064] In the embodiment of the present utility model, the optical path sealing device further comprises a sealing rubber pad, and the sealing rubber pad is arranged between the slot 114 and the visual panel 300 .

[0065] Specifically, a sealing pad (not shown) is installed at the slot 114 and is located between the slot 114 and the visual panel 300 to improve the sealing performance of the structure.

[0066] In the embodiment of the present invention, a plurality of grooves 115 are disposed on the top and bottom of the housing 110 .

[0067] Please refer to Figure 1 and Figure 2 By setting the groove 115, that is, setting the groove 115 upward at the bottom of the base plate and setting the groove 115 downward on the shell 110, and installing the base plate on the required structure by screws, the weight of the shell 110 can be reduced, which is convenient for installation and transportation.

[0068] The utility model also proposes a laser device, including an optical path sealing device as in any of the above embodiments. The specific structure of the laser device refers to the above embodiments. Since the laser device adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here. Among them, the laser device also includes a laser emitter and a light guide. The laser emitter is connected to the laser inlet 111 through the light guide, and the laser outlet 112 is connected to the output structure through the light guide, that is, the laser enters the first reflection cavity through the light guide, and is reflected in the optical path sealing device, and enters the output structure through the laser outlet 112 and the light guide.

[0069] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An optical path sealing device, characterized in that: include: The housing comprises an outer shell and a cover plate, wherein the outer shell is integrally formed and has a receiving cavity with an opening on one side, and the cover plate is detachably connected to the outer shell at the opening to seal the receiving cavity; a calibration component, disposed in the accommodating cavity to calibrate the light beam; and A visual panel is arranged at the opening and fixedly connected to the shell. The visual panel is arranged between the shell and the cover plate.

2. The optical path sealing device according to claim 1, characterized in that: The housing includes a laser inlet and a laser outlet, and the calibration assembly further includes: A first reflection cavity, connected to the laser inlet and the accommodating cavity respectively; A second reflective cavity, connected to the laser outlet and the accommodating cavity respectively; A calibration frame, disposed in the accommodating cavity; Among them, the laser enters the first reflection cavity from the laser inlet and is reflected to the accommodating cavity in the first reflection cavity. The light beam reflected by the first reflection cavity passes through the calibration frame and enters the second reflection cavity for secondary reflection and flows out from the laser outlet.

3. The optical path sealing device according to claim 2, characterized in that: The calibration component further includes a reflector. Two reflectors are provided, and the two reflectors are respectively arranged in the first reflective cavity and the second reflective cavity.

4. The optical path sealing device according to claim 3, characterized in that: The housing further includes a first passage, a second passage, a third passage, and a fourth passage; The axes of the first passage and the second passage are perpendicular, the first passage connects the laser inlet with the first reflective cavity, and the second passage connects the accommodating cavity with the first reflective cavity; The axes of the third passage and the fourth passage are perpendicular, the third passage connects the laser outlet and the second reflection cavity, and the fourth passage connects the accommodating cavity and the second reflection cavity; Wherein, the axes of the first passage and the third passage are parallel.

5. The optical path sealing device according to claim 3, characterized in that: The optical path sealing device also includes an adjusting screw, one end of which is located outside the accommodating cavity and the other end of which is connected to the reflecting mirror.

6. The optical path sealing device according to claim 5, characterized in that: The optical path sealing device also includes a mounting shell, which is arranged outside the accommodating cavity and connected to the outer shell to cover the adjusting screw.

7. The optical path sealing device according to claim 1, characterized in that: A groove is provided along the circumference of the opening on one side of the shell where the opening is provided, and the visual panel and the cover plate are arranged in the groove and connected to the shell.

8. The optical path sealing device according to claim 7, characterized in that: The optical path sealing device also includes a sealing rubber pad, and the sealing rubber pad is arranged between the slot and the visual panel.

9. The optical path sealing device according to claim 2, characterized in that: A plurality of grooves are arranged on the top and bottom of the shell.

10. A laser device, characterized in that: It comprises the optical path sealing device as described in any one of claims 1-9.

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