Light focusing jig for ultra-precision laser

Abstract

The utility model discloses a focusing jig for ultra-precision laser, which relates to the technical field of optical calibration equipment, and comprises a mounting seat which is detachably mounted at a preset position of ultra-precision laser equipment and is provided with a mounting position; the optical alignment shaft is mounted at the mounting position and detachably connected with the mounting seat, and the optical alignment shaft comprises a first end, a second end and a first channel, the first end and the second end are opposite to each other, and the first channel extends along the center line of the optical alignment shaft and penetrates through the first end and the second end; the light target is fixedly arranged in the first channel and close to the first end, and the light target is provided with a first position and a second position relative to the mounting base; when the light target is at the first position, the light target is arranged close to the mounting seat; and when the light target is at the second position, the light target is far away from the mounting seat. According to the technical scheme provided by the utility model, the problem of non-vertical laser ingestion of a reflector or an optical device can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of optical calibration equipment, in particular to a light alignment fixture for ultra-precision laser. Background Art

[0002] The reflector in the laser light path reflects the laser to the next reflector or the center of the optical device; the reflector is installed on a reflector frame, and the reflector frame is adjusted in three-dimensional space. The reflector is adjusted by adjusting the frame to ensure that the laser is reflected to the next reflector or the center of the optical device.

[0003] Existing lasers can hit the center of the next reflector or optical device after reflection, but there are cases where the laser is not incident vertically, that is, the laser hits the center of the reflector or optical device non-vertically, and then is reflected by the reflector again, or there is a problem of laser deviation when the optical device is used. Utility Model Content

[0004] The main purpose of the utility model is to provide a light fixture for ultra-precision laser, aiming to solve the problem of non-vertical laser intake into reflectors or optical devices.

[0005] To achieve the above-mentioned purpose, the present invention proposes an ultra-precision laser alignment fixture for use in ultra-precision laser equipment. The ultra-precision laser alignment fixture includes:

[0006] A mounting base, which is detachably mounted at a preset position of the ultra-precision laser device and has a mounting position;

[0007] an aiming axis, mounted at the mounting position and detachably connected to the mounting seat, the aiming axis comprising a first end and a second end opposite to each other, and a first channel extending along a centerline of the aiming axis and passing through the first end and the second end; and

[0008] a light target fixedly disposed in the first channel and arranged near the first end, the light target having a first position and a second position relative to the mounting seat;

[0009] When in the first position, the light target is disposed close to the mounting seat;

[0010] In the second position, the light target is disposed away from the mounting seat.

[0011] In one embodiment, a mounting groove is formed at the first end of the optical axis, and the light target is fixed in the mounting groove.

[0012] In one embodiment, a pin is provided in the mounting groove, and the pin is used to position the light target in the mounting groove.

[0013] In one embodiment, two mounting openings are provided on the outer side of the optical axis, and the two mounting openings are respectively arranged on both sides of the optical target; the mounting openings are used for mounting photo paper.

[0014] In one embodiment, the mounting base includes a base and a sleeve. The base is detachably mounted on the ultra-precision laser device. The sleeve is fixedly arranged on the base. The mounting position is arranged on the sleeve, and at least part of the optical axis is inserted into the sleeve.

[0015] The sleeve is provided with a laser input end and has an abutting end. When at least part of the optical axis is inserted into the sleeve, one end of the optical axis abuts against the abutting end.

[0016] In one embodiment, an avoidance notch is provided on the outer side of the sleeve; when the mounting opening is located inside the sleeve, the avoidance notch corresponds to the two mounting openings.

[0017] In one embodiment, the optical alignment jig for ultra-precision laser further includes a positioning member. When one end of the optical axis abuts against the abutting end, the positioning member is used to align the mounting opening with the avoidance notch.

[0018] In one embodiment, the positioning member includes a positioning rod and a positioning groove. One of the positioning rod and the positioning groove is arranged at the end of the optical axis, and the other is arranged at the abutting end, and the one arranged on the optical axis is configured to be two.

[0019] In one embodiment, the positioning rod is arranged at the end of the optical axis.

[0020] In one embodiment, the positioning rods arranged at the first end and the second end of the optical axis are arranged in a mirror image.

[0021] The technical solution of the present utility model is to detachably connect the optical axis to the mounting seat, and the mounting seat is detachably installed at a preset position of the ultra-precision laser device. The optical axis is installed on the mounting seat, and the first end is arranged close to the mounting seat. The light target can be located at the first position. During optical alignment, the laser is shot into the first channel and hits the light target located at the first position. The optical alignment operator adjusts the laser according to the position of the laser on the light target located at the first position through a microscope, so that the laser hits the center of the light target located at the first position. Then, the optical axis is detached from the mounting seat, the direction of the optical axis is changed, and the second end is brought close to the mounting seat. At this time, the light target is in the second position, and the light target is arranged away from the mounting seat. The laser is shot into the first channel and hits the light target located at the second position. The laser can hit the light target in the second position. The optical alignment operator adjusts the laser according to the position of the laser on the light target in the second position, so that the laser hits the center of the light target located at the second position. By adjusting the position of the laser in the optical axis twice through the first position and the second position of the light target, the laser can be made to emit parallel to the axis of the optical axis, so that the laser is perpendicular to the mirror or optical device. In this way, the problem that the laser is not vertically incident on the mirror or optical device can be solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.

[0023] Figure 1 Structural schematic diagram of the optical alignment fixture for ultra-precision laser provided by the present utility model with the light target located at the first position;

[0024] Figure 2 For Figure 1 Top view;

[0025] Figure 3 For Figure 2 Cross-sectional view;

[0026] Figure 4 For Figure 1 Schematic diagram of the light target located in the mounting groove in

[0027] Figure 5 Structural schematic diagram of the optical alignment fixture for ultra-precision laser provided by the present utility model with the light target located at the second position;

[0028] Figure 6 For Figure 5 Top view;

[0029] Figure 7 is Figure 6 a sectional view of

[0030] Description of the reference numerals in the drawings:

[0031] 100, mounting base; 110, base; 120, sleeve; 121, laser input end; 122, abutting end; 123, avoiding notch;

[0032] 200, optical axis alignment; 210, first end; 220, second end; 230, first channel; 240, mounting groove; 250, pin; 260, mounting opening;

[0033] 300, light target;

[0034] 400, positioning member; 410, positioning rod; 420, positioning groove.

[0035] The realization, functional features and advantages of the purpose of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0036] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0037] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative position relationship and movement conditions between the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0038] In addition, if the descriptions such as "first" and "second" are involved in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be construed as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel scenarios. Taking "A and / or B" as an example, it includes Scenario A, or Scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0039] The mirror in the laser optical path reflects the laser to the center of the next mirror or optical device; the mirror is installed on the mirror mount, and the mirror mount is adjusted in a three-dimensional space. The mirror is adjusted by adjusting the mount to ensure that the laser is reflected to the center of the next mirror or optical device.

[0040] The existing laser can be projected onto the center of the next mirror or optical device after reflection, but there is a situation where the laser is not incident vertically. That is to say, the laser hits the center of the mirror or optical device non-vertically. At this time, after being reflected by the mirror again, or when the optical device is used, there is a problem of laser deviation.

[0041] The present utility model provides an optical alignment jig for ultra-precision lasers, which is applied to ultra-precision laser equipment.

[0042] Please refer to Figure 1 、 Figure 5 In an embodiment of the present utility model, the optical alignment jig for ultra-precision lasers includes a mounting base 100, an optical alignment axis 200, and a light target 300; the mounting base 100 is detachably mounted at a preset position of the ultra-precision laser equipment. The mounting base 100 has a mounting position. In this embodiment, the mounting base 100 is detachably mounted at the preset position of the ultra-precision laser equipment by means of screw locking. The preset position of the ultra-precision laser equipment is a position close to the laser emission in the ultra-precision laser equipment, or a position close to the laser-incident mirror, or a position close to the laser-incident optical device. Further, after the mounting base 100 is mounted at the preset position of the ultra-precision laser equipment, the laser in the ultra-precision laser equipment can pass through the mounting position.

[0043] The optical axis alignment shaft 200 is installed at the installation position and is detachably connected to the mounting base 100. The optical axis alignment shaft 200 includes opposite first end 210 and second end 220, and a first channel 230 extending along the center line of the optical axis alignment shaft 200 and passing through the first end 210 and the second end 220. After the mounting base 100 is installed at the preset position of the ultra-precision laser device, the optical axis alignment shaft 200 is installed on the mounting base 100 and located in the installation position. At this time, the laser in the ultra-precision laser device can be injected into the first channel 230 of the optical axis alignment shaft 200; the optical target 300 is fixedly arranged in the first channel 230 and is arranged close to the first end 210. At the same time, the optical target 300 is configured as a cross optical target 300. When the laser is injected into the first channel 230 of the optical axis alignment shaft 200, the laser can hit the optical target 300 fixedly arranged in the first channel 230. At this time, the position of the laser can be obtained through the optical target 300. The optical target 300 has a first position and a second position relative to the mounting base 100; in the first position, the optical target 300 is arranged close to the mounting base 100, that is, the first end 210 of the optical axis alignment shaft 200 is arranged close to the mounting base 100; in the second position, the optical target 300 is arranged away from the mounting base 100, that is, the second end 220 of the optical axis alignment shaft 200 is arranged close to the mounting base 100, and the first end 210 is arranged away from the mounting base 100. Specifically, when the first end 210 of the optical axis alignment shaft 200 is arranged close to the mounting base 100, the optical target 300 can be located in the first position. During optical alignment, the laser is injected into the first channel 230 and hits the optical target 300 in the first position. The optical alignment personnel adjust the laser according to the position of the laser on the optical target 300 in the first position through a microscope, so that the laser hits the center of the optical target 300 in the first position. Then, the optical axis alignment shaft 200 is detached from the mounting base 100, the direction of the optical axis alignment shaft 200 is converted to make the second end 220 close to the mounting base 100. At this time, the optical target 300 is in the second position, and the optical target 300 is arranged away from the mounting base 100. The laser is injected into the first channel 230 and hits the optical target 300 in the second position. The laser can hit the optical target 300 in the second position. The optical alignment personnel adjust the laser according to the position of the laser on the optical target 300 in the second position, so that the laser hits the center of the optical target 300 in the second position. The position of the laser in the optical axis alignment shaft 200 is adjusted twice through the first position and the second position of the optical target 300, so that the laser can be emitted parallel to the axis of the optical axis alignment shaft 200, so that the laser is perpendicular to the reflecting mirror or optical device.

[0044] The technical solution of the present utility model is to detachably connect the optical axis 200 to the mounting base 100, and the mounting base 100 is detachably installed at a preset position of the ultra-precision laser device. The optical axis 200 is installed on the mounting base 100, and the first end 210 is arranged close to the mounting base 100. The light target 300 can be located at the first position. During optical alignment, the laser is emitted into the first channel 230 and hits the light target 300 located at the first position. The optical alignment operator adjusts the laser according to the position of the laser on the light target 300 located at the first position through a microscope, so that the laser hits the center of the light target 300 located at the first position. Then, the optical axis 200 is detached from the mounting base 100, and the direction of the optical axis 200 is changed so that the second end 220 is close to the mounting base 100. At this time, the light target 300 is in the second position, and the light target 300 is arranged away from the mounting base 100. The laser is emitted into the first channel 230 and hits the light target 300 located at the second position. The laser can hit the light target 300 in the second position. The optical alignment operator adjusts the laser according to the position of the laser on the light target 300 in the second position, so that the laser hits the center of the light target 300 located at the second position. By adjusting the position of the laser in the optical axis 200 twice through the first position and the second position of the light target 300, the laser can be emitted parallel to the axis of the optical axis 200, so that the laser is perpendicular to the reflecting mirror or optical device, thus solving the problem that the laser is not vertically incident on the reflecting mirror or optical device.

[0045] In one embodiment, refer to Figure 3 、 Figure 4 The first end 210 of the optical axis 200 is provided with a mounting groove 240, and the light target 300 is fixedly arranged in the mounting groove 240. Specifically, the light target 300 is fixedly arranged in the mounting groove 240, which can enable the optical axis 200 to cover the light target 300. At this time, when the optical axis 200 is disassembled and installed, it can avoid knocking the light target 300, resulting in the deviation of the light target 300.

[0046] In one embodiment, refer to Figure 3 、 Figure 4 Furthermore, the light target 300 can be positioned in the mounting groove 240 through the following structure. A pin 250 is arranged in the mounting groove 240, and the pin 250 is used to position the light target 300 in the mounting groove 240. Specifically, the light target 300 is provided with a through hole relative to the pin 250. When the light target 300 is installed in the mounting groove 240, the pin 250 passes through the through hole on the light target 300, thereby positioning the light target 300 in the mounting groove 240. Specifically, the pin 250 and the through hole are in transitional fit. Further, in this embodiment, the groove end face of the mounting groove 240 is parallel to the first end 210 and the second end 220 of the optical axis 200.

[0047] In one embodiment, refer to Figure 2、 Figure 3 In order to facilitate the adjustment of the laser to the center position of the light target 300, two mounting openings 260 are opened on the outer side of the light axis 200, and the two mounting openings 260 are respectively arranged on both sides of the light target 300; the mounting openings 260 are used to install photo paper; in this embodiment, during alignment, the photo paper is inserted into the light axis 200 through the mounting openings 260, and the laser is hit on the photo paper during alignment. At this time, the laser hitting the photo paper can leave a mark, and the mark is offset from the center of the light target 300. The alignment personnel adjusts the laser according to the mark and the center position of the light target 300, so that the mark hit by the laser on the photo paper can be moved to the center position of the light target 300. Under the effect of the mark on the photo paper, the alignment personnel can quickly determine the position of the laser, saving alignment time. In this embodiment, two mounting openings 260 are provided and are located on both sides of the light target 300. When the light target 300 is located in the first position, the photo paper is placed in the mounting opening 260 between the first end 210 and the light target 300. When the light target 300 is located in the second position, the photo paper is placed in the mounting opening 260 between the second end 220 and the light target 300.

[0048] In one embodiment, reference Figure 1 、 Figure 2 、 Figure 3 , the mounting seat 100 can adopt the following structure, the mounting seat 100 includes a base 110 and a sleeve 120, the base 110 is detachably mounted on the ultra-precision laser equipment, the sleeve 120 is fixed to the base 110, the mounting position is set on the sleeve 120, at least part of the optical axis 200 is plugged into the sleeve 120, wherein the optical axis 200 can be installed in the mounting seat 100 with better precision by plugging, thereby improving the precision of the light, that is, as the distance of the optical axis 200 inserted into the sleeve 120 accounts for the optical axis 200 The longer its length is, the higher the accuracy of its alignment axis 200 is; the sleeve 120 is provided with a laser input end 121 and an abutment end 122. When at least a portion of the alignment axis 200 is plugged into the sleeve 120, one end of the alignment axis 200 abuts against the abutment end 122. When the alignment axis 200 is inserted into the sleeve 120 and abuts against the abutment end 122, the abutment end 122 can limit the alignment axis 200. The laser can be injected into the sleeve 120 through the laser input end 121, and then injected into the first channel 230 in the alignment axis 200.

[0049] In one embodiment, reference Figure 3 、 Figure 5 、 Figure 6 、 Figure 7, To facilitate the insertion of the photo paper into the mounting opening 260 of the optical axis 200, an avoidance notch 123 is provided on the outer side of the sleeve 120; when the mounting opening 260 is located within the sleeve 120, the avoidance notch 123 corresponds to the two mounting openings 260. When the mounting opening 260 is located within the sleeve 120, the optical target 300 is at the first position or the second position at this time; specifically, according to the distance that the optical axis 200 is inserted into the sleeve 120, the avoidance notch 123 can be provided as one or two. An embodiment in which the avoidance notch 123 is provided as one is given in this application. Specifically, when the first end 210 of the optical axis 200 is close to the mounting base 100, that is, when the first end 210 abuts against the abutting end 122, the mounting opening 260 corresponds to the avoidance notch 123 at this time; when the second end 220 of the optical axis 200 is close to the mounting base 100, that is, when the second end 220 abuts against the abutting end 122, the mounting opening 260 is located outside the sleeve 120 at this time. In this way, when the optical alignment operator inserts the photo paper into the mounting opening 260, it is not restricted by the sleeve 120. However, this design is not limited to this. When the avoidance notch 123 is configured as two, that is, when the optical target 300 is at the first position or the second position, the mounting opening 260 corresponds to the avoidance notches 123 at different positions respectively.

[0050] In one embodiment, to facilitate the automatic correspondence between the mounting opening 260 and the avoidance notch 123 after the optical alignment operator installs the optical axis 200 and the sleeve 120, the optical alignment jig for ultra-precision lasers further includes a positioning member 400. When one end of the optical axis 200 abuts against the abutting end 122, the positioning member 400 is used to correspond the mounting opening 260 with the avoidance notch 123. When the avoidance notch 123 is configured as one, when the first end 210 of the optical axis 200 abuts against the abutting end 122, under the action of the positioning member 400, the mounting opening 260 on the optical axis 200 can correspond to the avoidance notch 123.

[0051] In one embodiment, refer to Figure 3 , Figure 7, the positioning member 400 can adopt the following structure. The positioning member 400 includes a positioning rod 410 and a positioning groove 420. One of the positioning rod 410 and the positioning groove 420 is provided at the end of the optical axis 200, and the other is provided at the abutting end 122. Moreover, the one installed on the optical axis 200 is configured to be two. Specifically, when the positioning rod 410 is provided on the optical axis 200, the positioning rod 410 is configured to be two and are respectively located at both ends of the optical axis 200. When the positioning groove 420 is provided on the optical axis 200, the positioning groove 420 is configured to be two and are respectively located at both ends of the optical axis 200. When the optical axis 200 is inserted into the sleeve 120 and the end of the optical axis 200 abuts against the abutting end 122, the positioning rod 410 can be inserted into the positioning groove 420. Further, in this embodiment, the positioning rod 410 is provided at the end of the optical axis 200. In this way, it is convenient to open the installation ports 260 on both sides of the light target 300. When the light target 300 is arranged close to the first end 210, at this time, the distance between the light target 300 and the end face of the first end 210 is small. At this time, if a positioning groove 420 is opened at the end of the optical axis 200, there will be a problem that it is inconvenient to open the installation ports 260. And the positioning rod 410 is provided at the end of the optical axis 200, which can ensure the length of the positioning rod 410, ensure the matching degree between the positioning rod 410 and the positioning groove 420, and avoid the problem that the positioning effect of the positioning rod 410 and the positioning groove 420 is not good due to the short positioning rod 410.

[0052] However, this design is not limited thereto. In other embodiments, the positioning groove can be configured as a groove structure opened on the inner wall of the sleeve 120, and the positioning rod is configured as a protrusion protruding outside the optical axis 200. When the optical axis 200 is inserted into the sleeve 120, the protrusion can be inserted into the groove structure, and as the optical axis 200 slides in the sleeve 120, at this time, the protrusion can slide along the groove structure.

[0053] In one embodiment, referring to Figure 3 , Figure 7 , the positioning rods 410 provided at the first end 210 and the second end 220 of the optical axis 200 are arranged in a mirror image. In this way, it is convenient to make the orientations of the installation ports 260 unified, and it is convenient for the optical alignment personnel to install the photographic paper into the installation ports 260.

[0054] The above is only the exemplary implementation manner of the present invention, and it does not limit the patent scope of the present invention. Any equivalent structural transformation made under the technical concept of the present invention by using the content of the specification and drawings of the present invention, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. An optical alignment jig for an ultra-precision laser, which is applied to an ultra-precision laser device, and is characterized in that, Comprising: A mounting base, detachably mounted at a preset position of the ultra-precision laser device, having a mounting position; An optical axis alignment shaft, mounted at the mounting position and detachably connected to the mounting base. The optical axis alignment shaft includes opposite first and second ends, and a first channel extending along the center line of the optical axis alignment shaft and passing through the first and second ends; and An optical target, fixedly arranged in the first channel and close to the first end. The optical target has a first position and a second position relative to the mounting base; In the first position, the optical target is arranged close to the mounting base; In the second position, the optical target is arranged away from the mounting base.

2. The optical alignment fixture for an ultra-precision laser according to claim 1, characterized in that An installation groove is formed at the first end of the optical axis alignment shaft, and the optical target is fixedly arranged in the installation groove.

3. The optical alignment fixture for ultra-precision lasers according to claim 2, wherein A pin is arranged in the installation groove, and the pin is used to position the optical target in the installation groove.

4. The optical alignment fixture for ultra-precision lasers according to claim 1, characterized in that, Two installation openings are formed on the outer side of the optical axis alignment shaft, and the two installation openings are respectively arranged on both sides of the optical target; the installation openings are used to install photographic paper.

5. The optical alignment fixture for an ultra-precision laser according to claim 4, wherein, The mounting base includes a base and a sleeve. The base is detachably mounted on the ultra-precision laser device, the sleeve is fixedly arranged on the base, the mounting position is arranged on the sleeve, and at least a part of the optical axis alignment shaft is inserted into the sleeve; The sleeve is provided with a laser input end and has an abutting end. When at least a part of the optical axis alignment shaft is inserted into the sleeve, one end of the optical axis alignment shaft abuts against the abutting end.

6. The optical alignment fixture for ultra-precision lasers according to claim 5, characterized in that, An avoidance notch is formed on the outer side of the sleeve; when the installation openings are located inside the sleeve, the avoidance notch corresponds to the two installation openings.

7. The optical alignment jig for an ultra-precision laser according to claim 6, wherein The optical axis alignment fixture for ultra-precision laser further includes a positioning member. When one end of the optical axis alignment shaft abuts against the abutting end, the positioning member is used to make the installation openings correspond to the avoidance notch.

8. The optical alignment jig for an ultra-precision laser according to claim 7, wherein, The positioning member includes a positioning rod and a positioning groove. One of the positioning rod and the positioning groove is arranged at the end of the optical axis alignment shaft, and the other is arranged at the abutting end, and the one arranged on the optical axis alignment shaft is configured to be two.

9. The optical alignment jig for an ultra-precision laser according to claim 8, characterized in that, The positioning rod is arranged at the end of the optical axis alignment shaft.

10. The optical alignment fixture for ultra-precision lasers according to claim 9, characterized in that, The positioning rods arranged at the first end and the second end of the optical axis alignment shaft are arranged in a mirror image.

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