A device for adjusting the light plane coincidence of a dual laser

Abstract

The utility model discloses a kind of device for adjusting double laser light plane coincident, comprising: observation board and adjusting device;Observation board is placed in the front of adjusting device, for receiving the laser strip projected by laser;2~8 continuous planes are equipped on observation board, the included angle between adjacent two planes is obtuse angle;Adjusting device includes height adjusting component and angle adjusting component, for adjusting the height and angle of laser respectively;Among them, angle adjusting component is spherical holder;Height adjusting component includes base, concave cross section ring and lifting column.This device changes the angle direction, position height of emergent laser by angle adjusting part, height adjusting part, so that the laser strip projected by double laser is quickly coincident, specific operation is simple, efficiency is high, and it has the characteristics of wide use scene.

Description

Technical Field

[0001] This utility model relates to the field of laser adjustment, specifically to a device for adjusting the overlap of the optical planes of two lasers. Background Technology

[0002] In the field of structured light measurement technology, lasers and cameras work together to form a sensor. The laser projects a laser strip onto the surface of the object to be measured, and the camera collects the laser strip to perform structured light measurement.

[0003] In some applications (such as wheelset inspection and gap surface difference inspection), lasers need to be deployed on both sides of the object to be tested. The two lasers project laser strips onto the surface of the object to be tested from the left and right sides respectively. At this time, it is necessary to pre-adjust the light planes projected by the two lasers to coincide, that is, the two laser strips projected coincide.

[0004] Therefore, it is necessary to design a device that can quickly and accurately adjust the alignment of the light plane. Summary of the Invention

[0005] To address the aforementioned issues, this invention provides a device for adjusting the overlap of the light planes of two lasers. This device uses an angle adjustment unit and a height adjustment unit to change the angle direction and position of the emitted laser, enabling the laser strips projected by the two lasers to quickly overlap. It features simple operation, high efficiency, and wide applicability.

[0006] The technical solution of this utility model is as follows:

[0007] A device for adjusting the optical planes of two lasers to coincide, comprising: an observation plate and an adjustment device;

[0008] The adjustment device includes a height adjustment component and an angle adjustment component, which are separately arranged and used to fix the laser; or, the adjustment device is composed of the height adjustment component and the angle adjustment component arranged vertically, with the upper component having a mounting position for fixing the laser.

[0009] The observation plate is placed in front of the adjustment device to receive the laser strip projected by the laser; the observation plate has 2 to 8 continuous planes, and the included angle between two adjacent planes is an obtuse angle;

[0010] The angle adjustment component is a spherical gimbal;

[0011] The height adjustment component includes a base, a concave cross-section ring, and a lifting column; the base is provided with a sleeve to accommodate the lifting column; the opening of the concave cross-section ring is located on the lower side and is fitted onto the top of the sleeve; the surface of the concave cross-section ring that is tangent to the sleeve has multiple protrusions in the same circumferential direction, and the corresponding sleeve surface has grooves to restrict the concave cross-section ring to rotate only relative to the sleeve and not to move in the height direction;

[0012] The lifting column is located on the innermost side, and its outer surface is partially threaded to be screwed to the concave section ring. Rotating the concave section ring can adjust the length of the lifting column extending from the sleeve.

[0013] Preferably, the bottom of the lifting column is provided with a protrusion I along the circumferential direction, and the distance from the top of the protrusion I to the lower surface of the concave cross-section ring is the maximum height of the lifting column extending out of the sleeve.

[0014] Preferably, the observation plate includes at least one plane perpendicular to the horizontal plane.

[0015] Preferably, the observation plate is a folded surface perpendicular to the horizontal plane.

[0016] Optionally, when the adjustment device is composed of the height adjustment component and the angle adjustment component arranged vertically, there are two adjustment devices arranged horizontally.

[0017] Preferably, the height adjustment part further includes a locking screw, which is screwed onto the side wall of the sleeve, and its free end can abut against the side wall of the lifting column to restrict the movement of the lifting column.

[0018] Preferably, it also includes an observation camera, which is fixed between the two lasers and is used to acquire images of the laser stripes on the observation board.

[0019] Optionally, a support plate may also be included for mounting the adjustment device.

[0020] This invention designs a device for adjusting the overlap of the light planes of two lasers. The angle adjustment unit and the height adjustment unit change the angle direction and position of the emitted laser, so that the laser strips projected by the two lasers quickly overlap. It is simple to operate, highly efficient, and has a wide range of applications.

[0021] The observation panel can observe the degree of overlap of the laser strip at different distances, avoiding inaccurate adjustment of the laser strip overlap. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the device (with observation camera) in a specific implementation embodiment;

[0023] Figure 2This is a schematic diagram of the overall structure (with support plate) of the device in a specific implementation embodiment;

[0024] Figure 3 This is a schematic diagram of the height adjustment unit structure in a specific embodiment;

[0025] Figure 4 This is a schematic diagram of the height adjustment unit (partial cross-section) in a specific embodiment;

[0026] Figure 5 This is a schematic diagram of the angle adjustment unit in a specific implementation. Detailed Implementation

[0027] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] A device for adjusting the coincidence of the optical planes of two lasers includes: an observation plate 1 and an adjustment device;

[0029] The adjustment device includes a height adjustment component 2 and an angle adjustment component 3, which are separately arranged and used to fix the laser; or, the adjustment device consists of the height adjustment component 2 and the angle adjustment component 3 arranged vertically, with the upper component having a mounting position for fixing the laser (e.g., Figure 1 , 2 );

[0030] The observation plate 1 is placed in front of the adjustment device to receive the laser strip projected by the laser; the observation plate has 2 to 8 continuous planes, and the included angle between two adjacent planes is an obtuse angle;

[0031] Among them, the angle adjustment component 3 is a spherical gimbal;

[0032] like Figure 3 , 4 As shown, the height adjustment component 2 includes a base, a concave cross-section ring 22, and a lifting column 23; the base is provided with a sleeve 21 to accommodate the lifting column 23; the opening of the concave cross-section ring 22 is located on the lower side and is sleeved on the top of the sleeve 21; the surface of the concave cross-section ring 22 that is tangent to the sleeve 21 is provided with multiple protrusions 24 in the same circumferential direction, and the surface of the sleeve 21 at the corresponding position is provided with a groove, which is used to restrict the concave cross-section ring 22 to only rotate relative to the sleeve 21 and not to move in the height direction;

[0033] The lifting column 23 is located on the innermost side, and its outer surface is partially threaded and screwed to the concave section ring 22. Rotating the concave section ring 22 can adjust the length of the lifting column extending from the sleeve.

[0034] A preferred embodiment is that the bottom of the lifting column 23 is provided with a protrusion I along the circumferential direction, and the distance from the top of the protrusion I to the lower surface of the concave cross-section ring 22 is the maximum height of the lifting column extending out of the sleeve.

[0035] In this embodiment, a stepped observation plate is used to observe the degree of overlap of the laser strip at different distances, so as to avoid inaccurate adjustment of the laser strip overlap.

[0036] More specifically, the observation panel includes at least one plane perpendicular to the horizontal plane.

[0037] The preferred implementation is that the observation plate is a folded surface perpendicular to the horizontal plane.

[0038] When the adjustment device consists of a height adjustment component 2 and an angle adjustment component 3 arranged vertically, there can be two adjustment devices, arranged horizontally.

[0039] The height adjustment unit also includes a locking screw 25, which is screwed onto the side wall of the sleeve. Its free end can abut against the side wall of the lifting column 23 to restrict the movement of the lifting column 23.

[0040] In specific implementation, such as Figure 5 As shown, the angle adjustment component 3 includes a base 31, a spherical movable block 32, and a locking knob 33. The base 31 has a semi-enclosed cavity that can accommodate the spherical movable block 32. The spherical movable block 32 rotates within the cavity. A stud 35 is provided on its top, which is exposed outside the cavity and is used to install the height adjustment component or the laser to be adjusted. The locking knob is screwed onto the side wall of the base 31. When the locking knob is tightened, its end can abut against the spherical movable block 32, restricting the rotation of the spherical movable block 32.

[0041] To more stably fix the laser, a quick-release plate 34 is screwed onto the top of the spherical gimbal. The upper surface of the plate has a groove I and a threaded hole on its side wall. The threaded hole communicates with the groove I. A pointed screw 37 is screwed into the threaded hole. A first movable block 36 is embedded in the groove I. The side wall of the first movable block 36 has a mounting hole. The tip of the pointed screw 37 can extend into the mounting hole to make the first movable block 36 move upward to form a protrusion, which can restrict the movement of the upper mounting component. When the pointed screw is loosened, the upper surface of the first movable block is flush with the upper surface of the cover plate.

[0042] To replace human observation, this embodiment also includes an observation camera 4, which is fixed between the two lasers and used to acquire images of the laser stripes on the observation board. By analyzing whether the two laser lines in the laser stripe image overlap, it is determined whether the positions of the two lasers have been adjusted.

[0043] In some applications, a support plate 5 is also included for mounting adjustment devices. For example... Figure 2As shown, the two lasers are distributed at both ends of the support plate 5. One laser, A, uses a height adjustment component and an angle adjustment component to change the angle and height of the laser, while the other laser, B, is mounted on the other end of the support plate 5 via a mounting bracket. When the laser strips projected by the two lasers overlap, the angle adjustment component 3 and the height adjustment component are locked, and the two lasers, the angle adjustment component 3, and the height adjustment component 2 are fixed together in the designated position by the support plate 5.

[0044] In actual use, the dual lasers can be placed directly at the designated position for adjustment without the support plate. Alternatively, after the lasers are adjusted, the angle adjustment unit 3 and the height adjustment unit can be locked, and then the dual lasers can be fixed to the same plane.

[0045] This device can change the angle, direction, and height of the emitted laser, so that the laser strips projected by the two lasers can quickly overlap. It is simple to operate, highly efficient, and has a wide range of applications.

[0046] For ease of interpretation and precise definition of the appended claims, the terms “upper,” “lower,” “inner,” and “outer” are used to describe features of exemplary embodiments with reference to the positions of these features shown in the accompanying drawings.

[0047] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and descriptive purposes. It is not intended to be exhaustive, nor is it intended to limit the present invention to the precise forms disclosed.

Claims

1. A device for adjusting the coincidence of the optical planes of two lasers, characterized in that, include: Observation panel (1) and adjustment device; The adjustment device includes a height adjustment component (2) and an angle adjustment component (3), which are separately arranged and used to fix the laser (6); or, the adjustment device is composed of the height adjustment component (2) and the angle adjustment component (3) arranged vertically, with the upper component having a mounting position for fixing the laser (6); The observation plate (1) is placed in front of the adjustment device to receive the laser strip projected by the laser; the observation plate is provided with 2 to 8 continuous planes, and the included angle between two adjacent planes is an obtuse angle; The angle adjustment component (3) is a spherical gimbal; The height adjustment component (2) includes a base, a concave cross-section ring (22), and a lifting column (23); the base is provided with a sleeve (21) for accommodating the lifting column (23); the opening of the concave cross-section ring (22) is located on the lower side and is fitted onto the top of the sleeve (21); the surface of the concave cross-section ring (22) that is tangent to the sleeve (21) is provided with multiple protrusions (24) in the same circumferential direction, and the surface of the sleeve (21) at the corresponding position is provided with a groove, which is used to restrict the concave cross-section ring (22) to only rotate relative to the sleeve (21) and not to move in the height direction; The lifting column (23) is located on the innermost side, and its outer surface is partially threaded to be screwed to the concave section ring (22). Rotating the concave section ring (22) can adjust the length of the lifting column extending from the sleeve.

2. The device for adjusting the optical planes of the two lasers to coincide as described in claim 1, characterized in that: The bottom of the lifting column (23) is provided with a protrusion I along the circumferential direction. The distance between the top of the protrusion I and the lower surface of the concave cross-section ring (22) is the maximum height of the lifting column extending out of the sleeve.

3. The device for adjusting the optical planes of the two lasers to coincide as described in claim 1, characterized in that, The observation panel includes at least one plane perpendicular to the horizontal plane.

4. The device for adjusting the optical planes of the two lasers to coincide as described in claim 1, characterized in that, The observation plate is a folded surface perpendicular to the horizontal plane.

5. The device for adjusting the optical planes of the two lasers to coincide as described in claim 1, characterized in that: When the adjustment device is composed of the height adjustment component (2) and the angle adjustment component (3) arranged vertically, there are two adjustment devices, arranged horizontally.

6. The apparatus for adjusting the optical planes of the two lasers to coincide as described in claim 1, characterized in that, The height adjustment part also includes a locking screw (25), which is screwed onto the side wall of the sleeve, and its free end can abut against the side wall of the lifting column (23) to restrict the movement of the lifting column (23).

7. The apparatus for adjusting the optical planes of the two lasers to coincide as described in claim 1, characterized in that, It also includes an observation camera (4), which is fixed between two lasers (6) and is used to acquire laser strip images on the observation board.

8. The apparatus for adjusting the optical planes of the two lasers to coincide as described in claim 1, characterized in that, It also includes a support plate (5) for mounting the adjustment device.

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