Optical path adjustment device, laser optical path adjustment system and method

Abstract

The present invention discloses an optical path adjustment device, a laser optical path adjustment system and a method, wherein the optical path adjustment device comprises: a base, a first mounting seat, a second mounting seat, a first angle adjustment component and a second angle adjustment component, wherein a hollow roof prism reflector is mounted on the first surface of the first mounting seat, the first angle adjustment component is rotatably mounted on the second mounting seat and is fixedly connected to the second surface of the first mounting seat, the first angle adjustment component can rotate around a first coordinate axis in a three-dimensional coordinate system, and can drive the hollow roof prism reflector to rotate around the first coordinate axis; a supporting device is arranged on the base, the supporting device comprises a supporting arm extending along the second coordinate axis of the three-dimensional coordinate system, the second angle adjustment component is rotatably mounted on the supporting arm and is fixedly connected to the second mounting seat, the second angle adjustment component can rotate around a third coordinate axis in the three-dimensional coordinate system, and can drive the hollow roof prism reflector to rotate around the third coordinate axis.

Description

Technical Field

[0001] The present invention relates to the field of optical technology, and in particular to an optical path adjustment device, a laser optical path adjustment system and a method. Background Art

[0002] In many laser application scenarios (such as laser processing, laser detection, laser etching, etc.), it is necessary to build an optical path system to transmit the laser to the target position for processing or action. For example, in a plasma laser measurement device, the laser optical path needs to be adjusted first, and the laser optical path needs to be kept stable during the measurement process. However, the adjustment of the optical path is often complicated and time-consuming, and the optical path is easily deflected by the surrounding environment during use, especially when the optical path transmission direction needs to be changed. For example, when the optical path transmission direction is changed between 0°-180°, a plane mirror reflection is often required. When adjusting the plane mirror, at least two dimensions need to be adjusted to ensure the accuracy of the transmission path. However, the adjustment of two or more dimensions is not only difficult, but also has poor stability and is difficult to maintain because a reflection direction is determined by multiple dimensions, which can easily lead to large errors or mistakes in detection or processing.

[0003] Therefore, how to reduce the difficulty of optical path adjustment and increase the stability of the optical path has become a technical problem that needs to be solved urgently. Summary of the invention

[0004] The present invention provides an optical path adjustment device, a laser optical path adjustment system and a method to solve the technical problem of how to reduce the difficulty of optical path adjustment and increase the stability of the optical path.

[0005] The present invention adopts the following technical solution:

[0006] According to a first aspect, an embodiment of the present application provides an optical path adjustment device, comprising: a base, a first mounting seat, a second mounting seat, a first angle adjustment component, and a second angle adjustment component, wherein a hollow roof prism reflector is mounted on the first surface of the first mounting seat, a first through hole is provided on the second mounting seat, the first angle adjustment component is fixedly connected to the second surface of the first mounting seat corresponding to the first surface through the first through hole, the first angle adjustment component can rotate axially around a first coordinate axis in a three-dimensional coordinate system, and driven by the first angle adjustment component, the first mounting seat can rotate axially around the first coordinate axis relative to the second mounting seat; a supporting device is provided on the base, the supporting device includes a supporting arm extending along the second coordinate axis of the three-dimensional coordinate system, a second through hole is provided on the supporting arm, the second angle adjustment component is fixedly connected to the second mounting seat through the second through hole, the second angle adjustment component can rotate axially around a third coordinate axis in the three-dimensional coordinate system, and driven by the second angle adjustment component, the first mounting seat and the second mounting seat can rotate axially around the third coordinate axis relative to the base.

[0007] According to the second aspect, an embodiment of the present application provides a laser optical path adjustment system, comprising at least one optical path adjustment device described in any one of the first aspects, installed in the laser optical path, and the laser is incident on the reflecting edge of the hollow roof prism reflector of the optical path adjustment device to reflect the laser, wherein the angle between the incident laser and the reflected laser is greater than 0° and less than 180°.

[0008] According to a third aspect, an embodiment of the present application provides a laser optical path adjustment method, which is applicable to the laser optical path adjustment system described in the second aspect, or to the optical path adjustment device described in any one of the first aspects, and the adjustment method includes:

[0009] Adjusting the position of the optical path adjustment device in the laser optical path so that the laser is incident on the reflecting edge of the hollow roof prism reflector of the optical path adjustment device;

[0010] Adjust the first angle adjustment component or adjust the second angle adjustment component to adjust the laser to the target position.

[0011] Compared with the prior art, the beneficial technical effects of the present invention are as follows:

[0012] The reflecting prism of the hollow roof prism reflector in the optical path adjustment device of the present application is used as a "plane" reflector, wherein the first angle adjustment component can rotate axially around the first coordinate axis in the three-dimensional coordinate system, and driven by the first angle adjustment component, the first mounting seat can rotate axially around the first coordinate axis relative to the second mounting seat. Therefore, by adjusting the angle of the hollow roof prism reflector around the first coordinate axis through the first angle adjustment device, and fixing the angle, the other two dimensions are in the initial state, and the hollow roof prism reflector is relatively fixed on the second coordinate axis and the third coordinate axis, so that the adjustment of the direction of the reflected light can be completed. When adjusting the optical path, the two dimensions of the second coordinate axis and the third coordinate axis are fixed, and the optical path is only affected by the one-dimensional angle of the reflecting prism around the first coordinate axis, which improves the stability of the overall optical path system, extends the optical path maintenance cycle, and greatly saves the labor cost and time cost during the use of the optical path system. Similarly, the second angle adjustment component in the optical path adjustment device passes through the second through hole and is fixedly connected to the second mounting seat. The second angle adjustment component can rotate axially around the third coordinate axis in the three-dimensional coordinate system. Driven by the second angle adjustment component, the first mounting seat and the second mounting seat can rotate around the third coordinate axis relative to the base. Therefore, by adjusting the angle of the hollow roof prism reflector around the third coordinate axis through the second angle adjustment device, and fixing the angle, the hollow roof prism reflector is relatively fixed on the first coordinate axis and the second coordinate axis, and the adjustment of the direction of the reflected light can be completed. When adjusting the optical path, the two dimensions of the first coordinate axis and the second coordinate axis are fixed, and the optical path is only affected by the one-dimensional angle of the reflective prism around the third coordinate axis, which improves the stability of the overall optical path system, extends the optical path maintenance cycle, and greatly saves the labor cost and time cost during the use of the optical path system. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below in conjunction with the accompanying drawings.

[0014] Figure 1 A three-dimensional diagram of an optical path adjustment device provided in an embodiment of the present application;

[0015] Figure 2 A schematic diagram of a hollow roof prism reflector provided in an embodiment of the present application;

[0016] Figure 3 A schematic diagram of an angle transmission mechanism provided in an embodiment of the present application;

[0017] Figure 4 Provided in the embodiments of this application Figure 3 A local enlarged schematic diagram of the middle A;

[0018] Figure 5A schematic diagram of a first mounting base and a second mounting base provided in an embodiment of the present application;

[0019] Figure 6 A schematic diagram of the application of the optical path adjustment device provided in an embodiment of the present application in a laser optical path adjustment system;

[0020] Figure 7 A schematic flow chart of a laser optical path adjustment method provided in an embodiment of the present application.

[0021] Explanation of the accompanying drawings: 1. base; 11. support arm; 2. first mounting seat; 3. second mounting seat; 31. bottom plate; 32. L-shaped plate; 4. hollow roof prism reflector; 41. first reflecting surface; 42. second reflecting surface; 43. reflecting prism; 5. first angle adjustment assembly; 6. second angle adjustment assembly; 7. angle sensor; 8. angle transmission mechanism; 81. first transmission shaft; 82. first gear; 83. second transmission shaft; 84. second gear; 85. third transmission shaft; 86. third gear; 87. fourth gear; 9 elastic connecting member; 10. third angle adjustment assembly; 101. first fine-tuning assembly; 102 second fine-tuning assembly. DETAILED DESCRIPTION

[0022] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0023] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0024] In the description of the present invention, unless otherwise clearly specified and limited, if the term "connection" or the like appears to indicate the connection relationship between components, the term should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two components or the interaction relationship between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] like Figure 1-4 As shown, an optical path adjustment device provided by an embodiment of the present application is shown, the optical path adjustment device includes a base 1, a first mounting seat 2, a second mounting seat 3, a first angle adjustment component 5 and a second angle adjustment component 6, wherein a hollow roof prism reflector 4 is installed on the first surface of the first mounting seat 2, a first through hole is provided on the second mounting seat 3, the first angle adjustment component 5 passes through the first through hole and is fixedly connected to a second surface of the first mounting seat 2 corresponding to the first surface, the first angle adjustment component 5 can be axially rotated around a first coordinate axis in a three-dimensional coordinate system, and driven by the first angle adjustment component 5, the first mounting seat 2 can be relative to the second mounting seat 3 Axially rotate around the first coordinate axis; a supporting device is arranged on the base 1, wherein the supporting device can be an L-shaped supporting device, including a supporting arm 11 extending along the second coordinate axis of the three-dimensional coordinate system and a supporting seat perpendicular to the supporting arm 11, the supporting seat is inserted into the base 1 through an axis, a second through hole is provided on the supporting arm 11, the second angle adjustment component 6 passes through the second through hole and is fixedly connected to the second mounting seat 3, the second angle adjustment component 6 can axially rotate around the third coordinate axis in the three-dimensional coordinate system, and driven by the second angle adjustment component 6, the first mounting seat 2 and the second mounting seat 3 can axially rotate around the third coordinate axis relative to the base 1. Wherein, the first coordinate axis, the second coordinate axis and the third coordinate axis are three coordinate axes in the three-dimensional coordinate system. In this embodiment, Figure 2 As shown, the hollow roof prism reflector 4 has two reflective surfaces, a first reflective surface 41 and a second reflective surface 42, and the angle between the two reflective surfaces is 90°. The edge where the two reflective surfaces intersect is called a reflective edge 43. Since the two reflective surfaces of the hollow roof prism reflector 4 are orthogonal, when the reflector reflects the incident light beam, the angle between the incident light and the reflected light in the direction perpendicular to the reflective edge 43 is always 180°, and the deflection angle of the component of the light beam parallel to the reflective edge 43 after being reflected by the retroreflector is twice the incident angle of the component.

[0026] Based on the above-mentioned feature of the hollow roof prism reflector 4, if the light beam is incident on the reflective prism 43 at a certain angle, when the light beam is reflected by the reflective prism 43, the direction of the reflected light will not change when the hollow roof prism reflector 4 rotates around the normal axis at the incident point or around the reflective prism 43. Only when the hollow roof prism reflector 4 deviates along the incident surface, the direction of the reflected light will change. That is, only the change in the angle of the reflective surface to the optical axis in one dimension will affect the direction of the reflected light.

[0027] Therefore, in the optical path adjustment device, the light beam is incident on the reflective prism 43 of the hollow roof prism reflector 4, and the hollow roof prism reflector is used as a reflector. In the process of adjusting the light beam to the target position, it is only necessary to adjust the angle between the light reflection plane and the optical axis in one dimension, which effectively reduces the difficulty of adjusting the optical path compared with the traditional method that requires at least adjusting the angle in two dimensions. At the same time, the optical path is only affected by one-dimensional angle of the reflection surface, which improves the stability of the overall optical path system, extends the optical path maintenance cycle, and greatly saves the labor cost and time cost during the use of the optical path system.

[0028] Based on the method of using the hollow roof prism reflector 4 in the optical path adjustment device, the first angle adjustment component 5 in the optical path adjustment device of the present application can rotate axially around the first coordinate axis in the three-dimensional coordinate system. Driven by the first angle adjustment component 5, the first mounting seat 2 can rotate axially around the first coordinate axis relative to the second mounting seat 3. Therefore, through the first angle adjustment component 5, the angle of the hollow roof prism reflector 4 around the first coordinate axis is adjusted and fixed, and the other two dimensions are in the initial state. In one embodiment, the hollow roof prism reflector 4 is relatively fixed on the second coordinate axis and the third coordinate axis, and the adjustment of the direction of the reflected light can be completed. When adjusting the optical path, the two dimensions of the second coordinate axis and the third coordinate axis are fixed, and the optical path is only affected by the one-dimensional angle of the reflective prism 43 around the first coordinate axis, which improves the stability of the overall optical path system, extends the optical path maintenance cycle, and greatly saves the labor cost and time cost during the use of the optical path system.

[0029] Similarly, the second angle adjustment component 6 in the optical path adjustment device of the present application is fixedly connected to the second mounting seat 3 through the second through hole, and the second angle adjustment component 6 can rotate axially around the third coordinate axis in the three-dimensional coordinate system. Driven by the second angle adjustment component 6, the first mounting seat 2 and the second mounting seat 3 can rotate around the third coordinate axis relative to the base 1. Therefore, by adjusting the angle of the hollow roof prism reflector 4 around the third coordinate axis through the second angle adjustment device, and fixing the angle, the hollow roof prism reflector 4 is relatively fixed on the first coordinate axis and the second coordinate axis, and the adjustment of the direction of the reflected light can be completed. When adjusting the optical path, the two dimensions of the first coordinate axis and the second coordinate axis are fixed, and the optical path is only affected by the one-dimensional angle of the reflective prism 43 around the third coordinate axis, which improves the stability of the overall optical path system, extends the optical path maintenance cycle, and greatly saves the labor cost and time cost during the use of the optical path system.

[0030] Take the first coordinate axis as the Y axis, the second coordinate axis as the Z axis, and the third coordinate axis as the X axis as an example:

[0031] The first angle adjustment component 5 can be used to adjust the angle of the reflecting prism 43 of the hollow roof prism reflector 4 around the Y axis; the second angle adjustment component 6 can be used to adjust the angle of the reflecting prism 43 of the hollow roof prism reflector 4 around the X axis, and then the optical path adjustment device is used as a reflecting device, and multiple optical path adjustment devices are combined to realize the transmission of reflected light in any direction.

[0032] In one embodiment, the first angle adjustment component 5 includes a first rotating shaft and a first rotating knob, the first rotating shaft passes through the first through hole, one end of the first rotating shaft is fixedly connected to the first rotating knob, and the other end of the first rotating shaft is fixedly connected to the second surface of the first mounting seat 2; the second angle adjustment component 6 includes a second rotating shaft and a second rotating knob, the second rotating shaft passes through the second through hole, one end of the second rotating shaft is fixedly connected to the second rotating knob, and the other end of the second rotating shaft is fixedly connected to the side surface of the second mounting seat 3. A damping mechanism, a positioning mechanism or a locking mechanism is provided between the first rotating shaft and the first through hole and between the second rotating shaft and the second through hole, so that the hollow roof prism reflector 4 can be locked at the target angle after the first knob or the second knob adjusts the hollow roof prism reflector 4 to the target angle.

[0033] In order to monitor the adjusted one-dimensional angle in real time, in one embodiment, an angle sensor 7 and an angle transmission mechanism 8 are further included, wherein the angle transmission mechanism 8 can be linked with the second angle adjustment component 6 or the connection part between the support device and the base 1 at different times under the action of external force. When the angle of the hollow roof prism reflector 4 is offset around the second coordinate axis and / or the third coordinate axis, the offset angle is transmitted to the angle sensor 7.

[0034] In this embodiment, if Figure 3 As shown, the angle transmission mechanism 8 includes: a first transmission shaft 81, a second transmission shaft 83 and a third transmission shaft 85, wherein the first end of the first transmission shaft 81 cooperates with the connection portion between the support device and the base 1, and the second end is fixedly installed with a first gear 82, the first end of the second transmission shaft 83 cooperates with the second angle adjustment assembly 6, and the second end is fixedly installed with a second gear 84, the third transmission shaft 85 is fixedly connected to the angle sensor 7, and a third gear 86 and a fourth gear 87 are arranged on the third transmission shaft 85 at intervals. Under the action of external force, the third transmission shaft 85 can move axially, so that the first gear 82 can be meshed with the third gear 86 or the second gear 84 can be meshed with the fourth gear 87.

[0035] Taking the first coordinate axis as the Y axis, the second coordinate axis as the Z axis, and the third coordinate axis as the X axis as an example, the first transmission shaft 81 is rotatably arranged on the support device along the direction of the third coordinate axis, and the second transmission shaft 83 is rotatably arranged on the support arm 11 along the direction of the second coordinate axis, that is, the first transmission shaft 81 is rotatably arranged on the base 1 along the X axis, and the second transmission shaft 83 is rotatably arranged on the base 1 along the Z axis; the third transmission shaft 85 is obliquely slidably penetrated on the base 1.

[0036] The first transmission shaft 81 is rotatably arranged on the base 1 along the X-axis direction; the first end of the first transmission shaft 81 may also be provided with a gear, and a corresponding meshing gear may be provided at the connection between the base 1 and the supporting device. When the supporting device drives the hollow roof prism reflector 4 to angularly deviate around the Z-axis, the gear at the connection between the base 1 and the supporting device meshes with the gear at the first end of the first transmission shaft 81, the first transmission shaft 81 rotates, the first gear 82 meshes with the third gear 86 for transmission, and the third transmission shaft 85 rotates to transmit the angular deviation of the hollow roof prism reflector 4 around the Z-axis to the angle sensor 7.

[0037] The second transmission shaft 83 is arranged on the support arm 11 along the Z-axis direction, and the first end of the second transmission shaft 83 is also provided with a gear. The second knob in the second angle adjustment assembly 6 or the second rotating shaft of the second knob is provided with a corresponding meshing gear. When the second mounting seat 3 drives the hollow roof prism reflector 4 to angularly deviate around the X-axis, the gear of the second knob or the second rotating shaft of the second knob meshes with the gear at the first end of the second transmission shaft 83 for transmission, the second transmission shaft 83 will rotate, the second gear 84 meshes with the fourth gear 87 for transmission, and the third transmission shaft 85 rotates to transmit the angular deviation of the hollow roof prism reflector 4 around the X-axis to the angle sensor 7.

[0038] like Figure 4The partial enlarged view of the first gear 82, the second gear 84, the third gear 86 and the fourth gear 87 shown in the figure, in this embodiment, when the third transmission shaft 85 is pressed in the first direction, the first gear 82 is meshed with the third gear 86, and the angle deviation of the hollow roof prism reflector 4 around the Z axis is transmitted to the angle sensor 7 through the first transmission shaft 81, and the angle deviation of the hollow roof prism reflector 4 around the Z axis is monitored by the angle sensor 7. Through the feedback of the angle sensor 7, the optical path is precisely adjusted, which is simple, accurate and time-saving; when the third transmission shaft 85 is not pressed in the first direction, the angle deviation of the hollow roof prism reflector 4 around the Z axis will not be transmitted to the angle sensor 7.

[0039] When the third transmission shaft 85 is pressed in the second direction, the second gear 84 meshes with the fourth gear 87, and the angle deviation of the hollow roof prism reflector 4 around the X-axis is transmitted to the angle sensor 7 through the second transmission shaft 83, and the angle deviation of the hollow roof prism reflector 4 around the X-axis is monitored by the angle sensor 7. The optical path is precisely adjusted through the feedback of the angle sensor 7, which is simple, accurate and time-saving; when the third transmission shaft 85 is not pressed in the second direction, the angle deviation of the hollow roof prism reflector 4 around the X-axis will not be transmitted to the angle sensor 7.

[0040] In one embodiment, see Figure 5 As shown, the second mounting seat 3 includes: a base plate 31 and an L-shaped plate 32, the first through hole is opened on the base plate 31, and the base plate 31 and the L-shaped plate 32 are connected by an elastic connecting piece 9; a third angle adjustment component 10, including a guide rod and a driving rod, the guide rod is engaged with the third through hole on the L-shaped plate 32, and a fourth through hole is opened on the guide rod along the axial direction of the guide rod, the driving rod is slidably penetrated through the fourth through hole and can move in a direction close to or away from the base plate 31, wherein the L-shaped plate 32 is fixedly mounted on the support arm 11 of the base 1 through the second angle adjustment component 6, and when the driving rod drives the base plate, the base plate can drive the first mounting seat 2 and the hollow roof prism reflector 4 to change the angle relative to the base 1.

[0041] Among them, the third angle adjustment component 10 includes a first fine-tuning component 101 and a second fine-tuning component 102, which are diagonally penetrated on the L-shaped plate 32, and are used to adjust the base plate 31 to drive the first mounting seat 2 and the hollow roof prism reflector 4 to change the angle relative to the base 1, and the relative angle positioning is achieved through the tightening action of the elastic connecting member 9 between the base plate 31 and the L-shaped plate 32.

[0042] The embodiment of the present application also provides a laser optical path adjustment system, comprising at least one optical path adjustment device in the above embodiment, installed in the laser optical path, and the laser is incident on the reflective prism 43 of the hollow roof prism reflector 4 of the optical path adjustment device to reflect the laser, wherein the angle between the incident laser and the reflected laser is greater than 0° and less than 180°. For details, see Figure 6 The illustrated exemplary application of the optical path adjustment device in a laser optical path adjustment system.

[0043] In the present application, the hollow roof prism reflector 4 in the optical path adjustment device is used as a plane reflector to change the transmission direction of the laser, that is, to adjust the angle between the incident laser and the reflected laser to an angle greater than 0° and less than 180°. Since only the angle between the light reflection plane and the optical axis in one dimension needs to be adjusted during the laser optical path adjustment process at the optical path adjustment device, the difficulty of optical path adjustment is effectively reduced compared with the traditional method that requires at least two dimensions to be adjusted. In addition, the laser optical path at the optical path adjustment device is affected by one-dimensional angle of the reflection surface, which improves the stability of the overall optical path system, extends the optical path maintenance cycle, and greatly saves labor costs and time costs during the use of the optical path system. When performing periodic maintenance and calibration of the optical path, the optical path can be precisely adjusted according to the feedback from the angle sensor 7, which is simple, accurate, and time-saving.

[0044] The present application also provides a laser light path adjustment method, which is applicable to the above laser light path adjustment system, or to the light path adjustment device in the above embodiment. Figure 7 As shown, the adjustment method includes the following steps:

[0045] S10. Adjust the position of the optical path adjustment device in the laser optical path so that the laser is incident on the reflecting edge of the hollow roof prism reflector of the optical path adjustment device.

[0046] S20. Adjust the first angle adjustment component or adjust the second angle adjustment component to adjust the laser to the target position.

[0047] The laser light path adjustment method is described below with a specific embodiment:

[0048] The adjustment method of adjusting the laser beam from the X-axis direction to the Y-axis direction is as follows:

[0049] Install the optical path adjustment device equipped with the hollow roof prism reflector at a suitable position of the laser optical path, so that the laser is incident on the reflective edge of the hollow roof prism reflector. In one embodiment, the laser can be incident on the center of the reflective edge of the hollow roof prism reflector. First, adjust the first angle adjustment component to roughly adjust the laser beam to the target position, and then lock the angle after fine-adjusting the laser beam to the accurate target position through the third angle adjustment component. After that, press the third transmission shaft in the first direction, the first gear is meshed with the third gear, and the angle deviation of the hollow roof prism reflector around the Z axis (or the base axis) is transmitted to the angle sensor through the first transmission shaft, and the angle deviation of the hollow roof prism reflector around the Z axis is monitored by the angle sensor. When performing optical path maintenance in subsequent use, it is only necessary to fine-tune the third angle adjustment component according to the angle feedback from the angle sensor. In this embodiment, since the reflected laser is emitted along the Y axis, there is no need to adjust the second angle adjustment component.

[0050] The adjustment method of adjusting the laser beam from the X-axis direction to the Z-axis direction is as follows:

[0051] Install the optical path adjustment device equipped with the hollow roof prism reflector at a suitable position of the laser optical path, so that the laser is incident on the reflective ridge of the hollow roof prism reflector. In one embodiment, the laser can be incident on the center of the reflective ridge of the hollow roof prism reflector. First, adjust the second angle adjustment component to roughly adjust the laser beam to the target position, and then lock the angle after fine-tuning the laser beam to the accurate target position through the third angle adjustment component. After that, press the third transmission shaft in the second direction, the second gear is meshed with the fourth gear, and the angle deviation of the hollow roof prism reflector around the X axis is transmitted to the angle sensor through the second transmission shaft, and the angle deviation of the hollow roof prism reflector around the X axis (or the axis of the second knob) is monitored by the angle sensor. When performing optical path maintenance in subsequent use, it is only necessary to fine-tune the third angle adjustment component according to the angle feedback from the angle sensor. In this embodiment, since the reflected laser is emitted along the Z axis, there is no need to adjust the first angle adjustment component.

[0052] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. An optical path adjustment device, characterized in that: include: A base, a first mounting seat, a second mounting seat, a first angle adjustment component and a second angle adjustment component, wherein a hollow roof prism reflector is installed on the first surface of the first mounting seat, a first through hole is arranged on the second mounting seat, the first angle adjustment component is fixedly connected to the second surface of the first mounting seat corresponding to the first surface through the first through hole, the first angle adjustment component can rotate axially around a first coordinate axis in a three-dimensional coordinate system, and driven by the first angle adjustment component, the first mounting seat can rotate axially around the first coordinate axis relative to the second mounting seat; a supporting device is arranged on the base, the supporting device includes a supporting arm extending along the second coordinate axis of the three-dimensional coordinate system, a second through hole is opened on the supporting arm, the second angle adjustment component is fixedly connected to the second mounting seat through the second through hole, the second angle adjustment component can rotate axially around a third coordinate axis in the three-dimensional coordinate system, and driven by the second angle adjustment component, the first mounting seat and the second mounting seat can rotate axially around the third coordinate axis relative to the base.

2. The optical path adjustment device according to claim 1, characterized in that: The first angle adjustment assembly includes a first rotating shaft and a first rotating knob, wherein the first rotating shaft passes through the first through hole, one end of the first rotating shaft is fixedly connected to the first rotating knob, and the other end opposite thereto is fixedly connected to the second surface of the first mounting seat; The second angle adjustment assembly includes a second rotating shaft and a second rotating knob. The second rotating shaft passes through the second through hole, one end of the second rotating shaft is fixedly connected to the second rotating knob, and the other end opposite to the second mounting seat is fixedly connected to the side surface of the second mounting seat.

3. The optical path adjustment device according to claim 1, characterized in that: It also includes an angle sensor and an angle transmission mechanism, and the angle transmission mechanism transmits the angle deviation of the hollow roof prism reflector around the second coordinate axis and / or the third coordinate axis to the angle sensor.

4. The optical path adjustment device according to claim 3, characterized in that: The angle transmission mechanism includes: a first transmission shaft, a second transmission shaft and a third transmission shaft, wherein: The first end of the first transmission shaft cooperates with the connecting part of the supporting device and the base, and the second end is fixedly installed with a first gear; the first end of the second transmission shaft cooperates with the second angle adjustment assembly, and the second end is fixedly installed with a second gear; the third transmission shaft is fixedly connected to the angle sensor, and the third gear and the fourth gear are arranged on the third transmission shaft at intervals. Under the action of external force, the third transmission shaft can move along its axial direction to mesh the first gear with the third gear or the second gear with the fourth gear.

5. The optical path adjustment device according to claim 4, characterized in that: The first transmission shaft is rotatably arranged on the supporting device along the direction of the third coordinate axis; The second transmission shaft is rotatably arranged on the support arm along the direction of the second coordinate axis; The third transmission shaft is obliquely slidably penetrated on the supporting device.

6. The optical path adjustment device according to claim 1, characterized in that: The second mounting base comprises: A bottom plate and an L-shaped plate, wherein the first through hole is formed on the bottom plate, and the bottom plate and the L-shaped plate are connected via an elastic connecting member; The third angle adjustment component includes a guide rod and a driving rod, the guide rod is engaged with the third through hole on the L-shaped plate, and a fourth through hole is opened on the guide rod along the axial direction of the guide rod, the driving rod is slidably penetrated through the fourth through hole and can move in a direction close to or away from the base plate.

7. The optical path adjustment device according to claim 1, characterized in that: The hollow roof prism reflector includes a first reflecting surface and a second reflecting surface intersecting at the reflecting edge, the angle between the first reflecting surface and the second reflecting surface is 90°, and the reflecting edge is parallel to the second coordinate axis or the third coordinate axis.

8. A laser optical path adjustment system, characterized in that: The optical path adjustment device comprises at least one optical path adjustment device as described in any one of claims 1 to 7, which is installed in the laser optical path, and the laser is incident on the reflecting edge of the hollow roof prism reflector of the optical path adjustment device to reflect the laser, wherein the angle between the incident laser and the reflected laser is greater than 0° and less than 180°.

9. A laser optical path adjustment method, characterized in that: Applicable to the laser optical path adjustment system of claim 8, or applicable to the optical path adjustment device of any one of claims 1 to 7, the adjustment method comprises: Adjusting the position of the optical path adjustment device in the laser optical path so that the laser is incident on the reflecting edge of the hollow roof prism reflector of the optical path adjustment device; Adjust the first angle adjustment component or adjust the second angle adjustment component to adjust the laser to the target position.

10. The laser light path adjustment method according to claim 9, characterized in that: The optical path adjustment device further comprises: an angle sensor and an angle transmission mechanism, wherein the angle transmission mechanism is used to transmit the angle deviation of the hollow roof prism reflector around the second coordinate axis and / or the third coordinate axis to the angle sensor respectively; The laser optical path adjustment method further comprises: After adjusting the angle of the hollow roof prism reflector by using the first angle adjustment component and adjusting the laser to the target position, adjusting the angle transmission mechanism so that the angle transmission mechanism transmits the angle offset of the hollow roof prism reflector around the second coordinate axis to the angle sensor; After adjusting the angle of the hollow roof prism reflector by using the second angle adjustment component and adjusting the laser to the target position, adjust the angle transmission mechanism so that the angle transmission mechanism transmits the angle offset of the hollow roof prism reflector around the third coordinate axis to the angle sensor.

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