Laser light path three-dimensional adjusting device

Abstract

The utility model relates to a three-dimensional adjusting device for a laser light path. The three-dimensional adjusting device comprises a base, a rotating substrate, a rotating fixing seat, a lens fixing seat and a reflecting lens, the rotating base plate is arranged on the top of the base, and the rotating fixing base is installed on the rotating base plate through the Z-rotating mechanism. A reflection cavity is formed in the rotary fixing seat, a light inlet hole is formed in the right side of the rotary fixing seat, a light outlet hole is formed in the rear side of the rotary fixing seat, a lens mounting hole is formed in the front side of the rotary fixing seat, and the light inlet hole, the light outlet hole and the lens mounting hole are all communicated with the reflection cavity; the lens fixing seat is mounted in the lens mounting hole through a mechanism rotating around Y, one end of the lens fixing seat extends into the reflection cavity and is provided with a reflection lens, and the reflection lens is used for reflecting a laser beam from the light inlet hole to the light outlet hole; according to the utility model, the rotating mechanism rotating around the Z and the rotating mechanism rotating around the Y respectively rotate the rotating fixing seat and the lens fixing seat, so that the reflecting lens rotates around the Y axis and the Z axis, and the position of a light beam refracted by a laser light path is changed.

Description

Technical Field

[0001] The utility model relates to the technical field of laser marking, in particular to a three-dimensional adjustment device for a laser light path. Background Art

[0002] In the field of laser marking technology, the lasers used in laser marking equipment are limited by the type, manufacturer, and cooling method of the lasers, and the appearance characteristics of the lasers vary greatly, making them unsuitable for direct installation with digital galvanometers. For example, the common picosecond lasers have large appearance characteristics, while the digital galvanometers have small appearance characteristics, making it impossible to coaxially install the laser head of the laser and the light port of the digital galvanometer. Therefore, when using such lasers with large appearance dimensions that cannot be coaxially installed, it is necessary to add a flight optical path that can refract the laser beam. Continuous optical path refraction allows the laser emitted by the laser to be correctly transmitted to the light port of the digital galvanometer, so that the laser marking equipment can operate normally.

[0003] However, the multi-refracted flying light path will produce deviations in the laser light path after each refraction due to the installation error of the reflector. Multiple deviations accumulate, and when the refracted laser finally reaches the light port of the digital galvanometer, the laser beam and the light port of the digital galvanometer are not coaxial. If the laser marking equipment is operated and the parts are marked at this time, the marking position on the parts will be deviated, and the marked parts will be unqualified. For this reason, the utility model proposes a three-dimensional adjustment device for the laser light path suitable for laser marking equipment, which is used to adjust the position of the laser light beam after 90 degrees of refraction in the flying light path. Therefore, a device is needed to adjust the angle and position of the reflector lens, so as to adjust the position of the laser light beam after 90 degrees of refraction in the flying light path. Utility Model Content

[0004] Based on the above description, the utility model provides a three-dimensional adjustment device for the laser optical path, which respectively rotates the rotating fixed seat and the lens fixed seat by setting a Z rotation mechanism and a Y rotation mechanism, so that the reflecting lens rotates around the Y and Z axes, and the position of the light beam after refraction of the laser optical path changes.

[0005] The utility model solves the above technical problems with the following technical solutions: a three-dimensional adjustment device for a laser optical path, wherein the left-right direction is an X-axis, the front-back direction is a Y-axis, and the up-down direction is a Z-axis, and the device comprises a base, a rotating substrate, a rotating fixed seat, a lens fixed seat, and a reflecting lens; the rotating substrate is arranged on the top of the base, and the rotating fixed seat is installed on the rotating substrate by rotating the rotating substrate around the Z-axis;

[0006] A reflective cavity is provided in the rotating fixed seat, a light inlet hole is provided on the right side of the rotating fixed seat, a light outlet hole is provided on the rear side of the rotating fixed seat, and a lens mounting hole is provided on the front side of the rotating fixed seat, and the light inlet hole, the light outlet hole and the lens mounting hole are all connected to the reflective cavity;

[0007] The lens fixing seat is installed in the lens mounting hole through a Y-rotation mechanism, and one end of the lens fixing seat extends into the reflection cavity and is provided with the reflection lens, which is used to reflect the laser beam from the light input hole to the light output hole.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, the Z rotation mechanism includes a Z tension spring and a Z set screw; a Z fixed block is arranged on the left side of the rotation fixed seat, the Z tension spring is arranged along the Y axis, the front side of the Z tension spring is connected to the rotating base plate, and the rear side of the Z tension spring is connected to the Z fixed block; a Z adjustment block is arranged on the front side of the rotation fixed seat, the Z set screw is threadedly connected to the rotating base plate along the X axis, and the end of the Z set screw is against the Z adjustment block.

[0010] Furthermore, a Z-locking block is provided on the right and rear sides of the rotating fixed seat, and a Z-arc oblong hole is provided on the Z-locking block. A Z-locking bolt hole matching the Z-arc oblong hole is provided on the top of the rotating base plate.

[0011] Furthermore, the Y-rotation mechanism includes a Y-tension spring and a Y-setting screw; a Y-fixing block is arranged on the right side of the lens fixing seat, the Y-tension spring is arranged along the Z axis, the bottom of the Y-tension spring is connected to the rotation fixing seat, and the top of the Y-tension spring is connected to the Y-fixing block; a Y-adjustment block is arranged on the left side of the lens fixing seat, the Y-setting screw is threadedly connected to the rotation fixing seat along the Z axis, and the end of the Y-setting screw is against the Y-adjustment block.

[0012] Furthermore, the top and bottom of the lens fixing seat are respectively provided with Y-shaped locking blocks, and the Y-shaped locking blocks are each provided with a Y-shaped arc oblong hole, and the front side of the rotating fixing seat is provided with a Y-shaped locking bolt hole that is matched one by one with the Y-shaped arc oblong hole.

[0013] Furthermore, a slide groove is provided on the top of the base, and the slide groove extends along the Y-axis; a slider is provided on the top of the rotating fixed seat, and the slider can be slidably arranged in the slide groove along the Y-axis; the rotating fixed seat is also connected to the base through a Y-axis moving mechanism.

[0014] Furthermore, the Y-axis moving mechanism includes an adjustment seat and at least one adjustment screw, the adjustment seat is arranged on the front side of the base, and the adjustment screw is used to connect the adjustment seat and the rotating substrate.

[0015] Furthermore, the adjustment screw includes a tightening screw and a loosening screw; the tightening screw passes through the adjustment seat, and the end of the tightening screw is threadedly connected to the rotating substrate; the loosening screw is threadedly connected to the adjustment seat, and the end of the loosening screw abuts against the front side wall of the rotating substrate.

[0016] Furthermore, a mounting bracket is provided on the top of the adjustment seat, at least three collimators are provided on the mounting bracket, a laser is connected to at least three collimators through a spectrometer, and the collimators are all used to emit lasers along the Y-axis; a position sensor corresponding to each of the collimators is provided on the front side of the lens fixing seat.

[0017] Furthermore, the angles at which the collimators emit laser light are all different.

[0018] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0019] 1. The utility model provides a Z-rotation mechanism and a Y-rotation mechanism to respectively rotate the rotating fixed seat and the lens fixed seat, so that the reflective lens rotates around the Y and Z axes, so that the position of the beam after the laser light path is refracted changes;

[0020] 2. By setting the Y-axis moving mechanism to move the rotating substrate, not only the angle of the reflective lens can be adjusted, but also the position of the reflective lens can be adjusted;

[0021] 3. By setting up a laser and a plurality of matching position sensors, the rotation angle and moving distance of the reflective lens can be accurately measured, thereby realizing precise adjustment of the position of the angle of the reflective lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the structure of a three-dimensional adjustment device for a laser optical path provided by an embodiment of the utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the base and the adjustment seat in the embodiment of the utility model;

[0024] Figure 3 This is a schematic structural diagram of a rotating substrate in an embodiment of the utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the rotating fixing seat in the embodiment of the utility model;

[0026] Figure 5 It is a structural schematic diagram of the rotating fixing seat from another perspective in the embodiment of the utility model;

[0027] Figure 6 This is a schematic diagram of the installation method of the rotating fixing seat in the embodiment of the utility model;

[0028] Figure 7 This is a structural schematic diagram of a lens fixing seat in an embodiment of the utility model;

[0029] Figure 8 It is a structural schematic diagram of another viewing angle of the lens fixing seat in the embodiment of the utility model;

[0030] Fig. 9 This is a schematic diagram of the installation method of the lens fixing seat in the embodiment of the utility model;

[0031] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0032] 1. Base; 11. Slide; 2. Adjustment seat; 21. Tighten the screw; 22. Loosen the screw; 3. Rotate the base plate; 31. Slider; 32. Around Z stretch spring; 33. Around Z set screw; 34. Around Z locking bolt hole; 4. Rotate the fixed seat; 41. Around Z fixed block; 42. Around Z adjustment block; 43. Around Z locking block; 44. Around Z arc long round hole; 45. Around Y stretch spring; 46. Around Y set screw; 47. Light entrance hole; 48. Light exit hole; 49. Lens mounting hole; 5. Lens fixing seat; 51. Around Y fixed block; 52. Around Y adjustment block; 53. Around Y locking block; 54. Around Y arc long round hole; 55. Position sensor; 6. Reflector lens; 71. Mounting bracket; 72. Collimator; 73. Laser; 74. Spectrum splitter. DETAILED DESCRIPTION

[0033] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0035] It will be appreciated that spatial relationship terms such as "under," "beneath," "below," "under," "above," "above," etc., may be used herein to describe the relationship of an element or feature shown in the figures to other elements or features. It will be appreciated that, in addition to the orientations shown in the figures, spatial relationship terms also include different orientations of the device in use and operation. For example, if the device in the accompanying drawings is flipped, an element or feature described as "under other elements" or "under it" or "under it" will be oriented as being "above" the other elements or features. Thus, the exemplary terms "under" and "under" may include both upper and lower orientations. In addition, the device may also include additional orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptors used herein are interpreted accordingly.

[0036] A three-dimensional adjustment device for laser optical path, with the left-right direction as X-axis, the front-back direction as Y-axis, and the up-down direction as Z-axis, comprises a base 1, a rotating substrate 3, a rotating fixed seat 4, a lens fixed seat 5 and a reflecting lens 6.

[0037] The top of the base 1 is provided with a slide groove 11, which extends along the Y axis. The top of the rotating fixed seat 4 is provided with a slider 31, which can be slidably arranged in the slide groove 11 along the Y axis. The rotating fixed seat 4 is also connected to the base 1 through a Y axis moving mechanism.

[0038] The Y-axis moving mechanism includes an adjustment seat 2 and at least one adjustment screw, the adjustment seat 2 is arranged on the front side of the base 1, and the adjustment screw is used to connect the adjustment seat 2 and the rotating substrate 3. In this embodiment, the adjustment screw includes a tightening screw 21 and a loosening screw 22. The tightening screw 21 passes through the adjustment seat 2, and the end of the tightening screw 21 is threadedly connected to the rotating substrate 3. The loosening screw 22 is threadedly connected to the adjustment seat 2, and the end of the loosening screw 22 is against the front side wall of the rotating substrate 3.

[0039] The loosening screw 22 is used to limit the position of the rotating substrate 3. The tightening screw 21 is used to tighten the rotating substrate 3 so that the front side of the rotating substrate 3 abuts against the loosening screw 22, thereby fixing the rotating substrate 3 at the position preset by the loosening screw 22. The position of the reflective lens 6 along the Y axis can be adjusted by adjusting the loosening screw 22 and the tightening screw 21.

[0040] The rotating fixed seat 4 is installed on the rotating base plate 3 through the Z rotating mechanism. Specifically, the Z rotating mechanism includes a Z tension spring 32 and a Z set screw 33. A Z fixed block 41 is provided on the left side of the rotating fixed seat 4. The Z tension spring 32 is provided along the Y axis. The front side of the Z tension spring 32 is connected to the rotating base plate 3, and the rear side of the Z tension spring 32 is connected to the Z fixed block 41. A Z adjustment block 42 is provided on the front side of the rotating fixed seat 4. The Z set screw 33 is threadedly connected to the rotating base plate 3 along the X axis, and the end of the Z set screw 33 abuts against the Z adjustment block 42.

[0041] By cooperating the Z tension spring 32 with the Z set screw 33 , the rotating fixing seat 4 can be rotated around the Z axis by adjusting the Z set screw 33 , thereby causing the reflective lens 6 to rotate around the Z axis.

[0042] In addition, a Z-locking block 43 is provided on the right and rear sides of the rotating fixed seat 4, a Z-arc oblong hole 44 is provided on the Z-locking block 43, and a Z-locking bolt hole 34 matching the Z-arc oblong hole 44 is provided on the top of the rotating base plate 3. The rotating fixed seat 4 can be locked at a fixed angle by inserting a locking bolt into the Z-locking bolt hole 34 through the Z-arc oblong hole 44 and pressing the Z-locking block 43.

[0043] A reflection cavity is provided in the rotating fixed seat 4, a light inlet hole 47 is provided on the right side of the rotating fixed seat 4, a light outlet hole 48 is provided on the rear side of the rotating fixed seat 4, and a lens mounting hole 49 is provided on the front side of the rotating fixed seat 4. The light inlet hole 47, the light outlet hole 48 and the lens mounting hole 49 are all connected to the reflection cavity. The lens fixing seat 5 is installed in the lens mounting hole 49 by rotating the mechanism around Y, and one end of the lens fixing seat 5 extends into the reflection cavity and is provided with a reflection lens 6, which is used to reflect the laser beam from the light inlet hole 47 to the light outlet hole 48.

[0044] Specifically, the Y-rotation mechanism includes a Y-tension spring 45 and a Y-tightening screw 46. A Y-fixing block 51 is provided on the right side of the lens fixing seat 5. The Y-tension spring 45 is provided along the Z axis. The bottom of the Y-tension spring 45 is connected to the rotating fixing seat 4, and the top of the Y-tension spring 45 is connected to the Y-fixing block 51. A Y-adjusting block 52 is provided on the left side of the lens fixing seat 5. The Y-tightening screw 46 is threadedly connected to the rotating fixing seat 4 along the Z axis, and the end of the Y-tightening screw 46 abuts against the Y-adjusting block 52.

[0045] By cooperating with the Y-tension spring 45 and the Y-tightening screw 46 , the lens fixing seat 5 can be rotated around the Y axis by adjusting the Y-tightening screw 46 , thereby causing the reflective lens 6 to rotate around the Y axis.

[0046] In addition, Y-shaped locking blocks 53 are respectively provided at the top and bottom of the lens holder 5, and Y-shaped locking blocks 53 are provided with Y-shaped arc long round holes 54, and the front side of the rotation holder 4 is provided with Y-shaped locking bolt holes that match the Y-shaped arc long round holes 54 one by one. The lens holder 5 can be locked at a fixed angle by inserting the locking bolts into the Y-shaped locking bolt holes through the Y-shaped arc long round holes 54 and pressing the Y-shaped locking blocks 53.

[0047] A mounting bracket 71 is also provided on the top of the adjustment seat 2, and at least three collimators 72 are provided on the mounting bracket 71. A laser 73 is connected to at least three collimators 72 through a beam splitter 74. The collimators 72 are all used to emit lasers along the Y axis, and the angles at which the collimators 72 emit lasers are all different. A position sensor 55 corresponding to the collimators 72 is provided on the front side of the lens fixing seat 5. In this embodiment, the laser 73 and the beam splitter 74 are installed on one side of the adjustment seat 2.

[0048] In the initial state of the reflective lens 6, the direction vectors of the lasers emitted by the collimators 72 are recorded respectively, and the position coordinates of the light spots where the lasers fall on the position sensors 55 are recorded. After the angle and position of the reflective lens 6 are changed, the new position coordinates of the light spots where the lasers fall on the position sensors 55 are recorded. By analyzing and calculating the direction vectors, the initial position coordinates and the new position coordinates, the angle and position change of the reflective lens 6 can be accurately calculated, thereby realizing the precise adjustment of the angle and position of the reflective lens 6.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A three-dimensional adjustment device for a laser optical path, wherein the left-right direction is the X-axis, the front-back direction is the Y-axis, and the up-down direction is the Z-axis, characterized in that: It includes a base, a rotating base, a rotating fixed seat, a lens fixed seat and a reflecting lens; the rotating base is arranged on the top of the base, and the rotating fixed seat is installed on the rotating base through a Z rotating mechanism; A reflective cavity is provided in the rotating fixed seat, a light inlet hole is provided on the right side of the rotating fixed seat, a light outlet hole is provided on the rear side of the rotating fixed seat, and a lens mounting hole is provided on the front side of the rotating fixed seat, and the light inlet hole, the light outlet hole and the lens mounting hole are all connected to the reflective cavity; The lens fixing seat is installed in the lens mounting hole through a Y-rotation mechanism, and one end of the lens fixing seat extends into the reflection cavity and is provided with the reflection lens, which is used to reflect the laser beam from the light input hole to the light output hole.

2. The laser light path three-dimensional adjustment device according to claim 1, characterized in that: The Z rotating mechanism comprises a Z stretching spring and a Z set screw; a Z fixed block is arranged on the left side of the rotating fixed seat, the Z stretching spring is arranged along the Y axis, the front side of the Z stretching spring is connected to the rotating base plate, and the rear side of the Z stretching spring is connected to the Z fixed block; a Z adjustment block is arranged on the front side of the rotating fixed seat, the Z set screw is threadedly connected to the rotating base plate along the X axis, and the end of the Z set screw abuts against the Z adjustment block.

3. The laser light path three-dimensional adjustment device according to claim 2, characterized in that: A Z-locking block is arranged on the right side and rear side of the rotating fixed seat, and a Z-arc oblong hole is arranged on the Z-locking block. A Z-locking bolt hole matching the Z-arc oblong hole is arranged on the top of the rotating base plate.

4. The laser light path three-dimensional adjustment device according to claim 1, characterized in that: The Y-rotation mechanism comprises a Y-tension spring and a Y-setting screw; a Y-fixing block is arranged on the right side of the lens fixing seat, the Y-tension spring is arranged along the Z axis, the bottom of the Y-tension spring is connected to the rotation fixing seat, and the top of the Y-tension spring is connected to the Y-fixing block; a Y-adjustment block is arranged on the left side of the lens fixing seat, the Y-setting screw is threadedly connected to the rotation fixing seat along the Z axis, and the end of the Y-setting screw abuts against the Y-adjustment block.

5. The laser light path three-dimensional adjustment device according to claim 4, characterized in that: The top and bottom of the lens fixing seat are respectively provided with Y-shaped locking blocks, and the Y-shaped locking blocks are each provided with a Y-shaped arc oblong hole. The front side of the rotating fixing seat is provided with a Y-shaped locking bolt hole that matches the Y-shaped arc oblong hole one by one.

6. The laser light path three-dimensional adjustment device according to claim 1, characterized in that: A slide groove is arranged on the top of the base, and the slide groove extends along the Y axis; a slider is arranged on the top of the rotating fixed seat, and the slider can be slidably arranged in the slide groove along the Y axis; the rotating fixed seat is also connected to the base through a Y axis moving mechanism.

7. The laser light path three-dimensional adjustment device according to claim 6, characterized in that: The Y-axis moving mechanism comprises an adjustment seat and at least one adjustment screw, wherein the adjustment seat is arranged at the front side of the base, and the adjustment screw is used to connect the adjustment seat and the rotating base plate.

8. The laser light path three-dimensional adjustment device according to claim 7, characterized in that: The adjusting screw comprises a tightening screw and a loosening screw; the tightening screw passes through the adjusting seat, and the end of the tightening screw is threadedly connected to the rotating base plate; the loosening screw is threadedly connected to the adjusting seat, and the end of the loosening screw abuts against the front side wall of the rotating base plate.

9. The laser light path three-dimensional adjustment device according to claim 7, characterized in that: A mounting bracket is provided on the top of the adjustment seat, and at least three collimators are provided on the mounting bracket. A laser is connected to at least three collimators through a spectrometer, and the collimators are all used to emit lasers along the Y axis; a position sensor corresponding to each of the collimators is provided on the front side of the lens fixing seat.

10. The laser light path three-dimensional adjustment device according to claim 9, characterized in that: The collimators emit laser beams at different angles.

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