Optical axis adjusting device of large-diameter collimator
By designing an independent optical axis adjustment device, the difficult problem of multi-dimensional adjustment of large-aperture collimators is solved, and high-precision and stable optical axis adjustment is achieved, which is suitable for optical axis adjustment of large-aperture collimators.
Patent Information
- Application Number
- CN202422933960.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-11-29
AI Technical Summary
Existing large-aperture collimator optical axis adjustment devices have problems with difficulty in adjustment or affect other parameters when adjusting the azimuth, pitch, roll and altitude positions, resulting in long adjustment time and low accuracy.
Abstract: An optical axis adjustment device was designed, which included a base plate, a pitch adjustment plate, a gantry, a height adjustment bracket and a roll adjustment mechanism. Through hinge shafts, threaded connections and linear guide rails, the optical axis could be independently adjusted in azimuth, pitch, roll and height, and a locking mechanism was used to fix the parameters.
The high-precision adjustment of the optical axis of the large-aperture collimator in four dimensions is achieved. The adjustment is independent and stable, and the stability of the optical axis can be maintained for a long time after adjustment.
Smart Images
Figure CN223413526U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of optical instruments, in particular to an optical axis adjustment device for a large-caliber parallel light tube. Background Art
[0002] At present, a collimator is an optical instrument that produces a parallel light beam and is an important tool for calibrating and adjusting optical instruments. Different functions can be achieved by configuring optical systems of different apertures and reticles.
[0003] Among them, large-aperture collimator tubes generally have a larger field of view and precision. Before use, according to product-related requirements, the optical axis of the large-aperture collimator tubes needs to be adjusted in four dimensions: azimuth, pitch, roll, and height.
[0004] However, when adjusting the azimuth, pitch, roll and altitude positions of the optical axis, the existing large-aperture collimator optical axis adjustment devices either lack separate azimuth, pitch, roll and altitude position adjustment devices, making adjustment difficult, or the adjustment devices have poor effects. For example, adjusting the azimuth adjustment device will affect the pitch value of the optical axis, making the adjustment time longer and more difficult. Therefore, we propose an optical axis adjustment device for a large-aperture collimator to solve the above technical problems. Therefore, we propose an optical axis adjustment device for a large-aperture collimator to solve the above problems. Utility Model Content
[0005] The utility model aims to solve the problems existing in the prior art and proposes an optical axis adjustment device for a large-caliber parallel light tube.
[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0007] An optical axis adjustment device for a large-aperture collimator comprises a base plate, wherein the base plate and a pitch adjustment plate are connected by a hinge shaft, a pitch adjustment screw is installed on one side of the top of the pitch adjustment plate, and pitch locking mechanisms are installed on the left and right sides of the base plate through the bottom, the pitch adjustment plate is installed with a hole-axis matching arrangement on a gantry and can rotate along the center, the gantry and the pitch adjustment plate are provided with mounting holes and threads which are both threadedly connected to the screw, the gantry and a height adjustment bracket are connected by a scissor-type lifting platform, the top of the height adjustment bracket is equipped with a collimator fixing frame, the top of the collimator fixing frame is equipped with a collimator fixing ring, and the top of the collimator fixing ring is equipped with a roll adjustment mechanism.
[0008] Preferably, the pitch adjustment screw is arranged in the middle of the adjustment end of the pitch adjustment plate and cooperates with the hinge shaft to rotate for pitch adjustment. The pitch adjustment plate is provided with a thread adapted to the pitch adjustment screw to ensure a more stable structure.
[0009] Preferably, an azimuth adjustment mechanism is installed on the top of the pitch adjustment plate, and the left and right adjustment screws on the azimuth adjustment mechanism can be rotated respectively to act on the rotating block that pushes the gantry to adjust the azimuth. Locking nuts are provided on the left and right adjustment screws on the azimuth adjustment mechanism to realize the azimuth adjustment action.
[0010] Preferably, linear guide rails are provided on both sides between the height adjustment bracket and the gantry to realize directional linear motion, thereby achieving height position fixation.
[0011] Preferably, the left and right adjusting screws on the roll adjustment mechanism can rotate respectively to act on the rotating block that pushes the parallel light tube to perform roll adjustment. Locking nuts are provided on the left and right adjusting screws on the roll adjustment mechanism to realize the roll adjustment action.
[0012] Compared with the prior art, the beneficial effects of the present invention are:
[0013] The utility model can adjust the optical axis of the large-aperture collimator individually in four dimensions: azimuth, pitch, roll and height through the device, and the adjustment structure is relatively independent, with good adjustment effect. Adjusting one parameter will not change the values of the other three parameters, and the related influence is small. High-precision adjustment of the optical axis of the large-aperture collimator can be achieved. After the parameters are adjusted, they can be locked and fixed, and the long-term stability of the optical axis of the large-aperture collimator can be maintained. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the overall structure of an optical axis adjustment device for a large-aperture collimator proposed by the present invention;
[0015] Figure 2 This is a schematic diagram of the bottom plate structure of an optical axis adjustment device for a large-aperture parallel light pipe proposed by the utility model.
[0016] In the figure: 1. Base plate; 2. Pitch adjustment screw; 3. Pitch locking mechanism; 4. Gantry; 5. Collimator fixing ring; 6. Collimator fixing bracket; 7. Height adjustment bracket; 8. Scissor lift; 9. Linear guide; 10. Roll adjustment mechanism; 11. Azimuth adjustment mechanism; 12. Hinge shaft; 13. Pitch adjustment plate; 14. Mounting hole; 15. Thread. DETAILED DESCRIPTION
[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0018] Reference Figure 1-2A device for adjusting the optical axis of a large-aperture collimator comprises: a base plate 1, the base plate 1 and a pitch adjustment plate 13 are connected by a hinge shaft 12, a pitch adjustment screw 2 is installed on one side of the top of the pitch adjustment plate 13, a pitch locking mechanism 3 is installed through the bottom of the left and right sides of the base plate 1, the pitch adjustment plate 13 is installed with a hole-axis matching installation on the gantry 4, and can rotate along the center, the gantry 4 and the pitch adjustment plate 13 are provided with mounting holes 14 and threads 15, both of which are connected to the screw threads 15, the gantry 4 and the height adjustment bracket 7 are connected by a scissor lift 8, and the top of the height adjustment bracket 7 is assembled There is a collimator fixing frame 6, a collimator fixing ring 5 is installed on the top of the collimator fixing frame 6, and a roll adjustment mechanism 10 is installed on the top of the collimator fixing ring 5. Through the device, the optical axis of the large-aperture collimator can be adjusted separately in four dimensions: azimuth, pitch, roll and height. The adjustment structure is relatively independent and the adjustment effect is good. Adjusting one parameter will not change the values of the other three parameters. The relevant influence is small, and high-precision adjustment of the optical axis of the large-aperture collimator can be achieved. After the parameters are adjusted, they can be locked and fixed to maintain the long-term stability of the optical axis of the large-aperture collimator.
[0019] Furthermore, the pitch adjustment screw 2 is arranged in the middle of the adjustment end of the pitch adjustment plate 13 and cooperates with the hinge shaft 12 to rotate for pitch adjustment. The pitch adjustment plate 13 is provided with a thread 15 adapted to the pitch adjustment screw 2. The pitch adjustment is achieved by rotating the pitch adjustment screw 2 relative to the pitch adjustment plate 13 to generate a force, and the pitch adjustment plate 13 rotates along the center of the hinge shaft 12 to achieve the pitch adjustment action. After the adjustment is in place, the pitch locking mechanism 3 nuts are used to tighten the pitch adjustment plate 13 from top and bottom, and then the double nuts are locked. The pitch adjustment screw 2 and the pitch locking mechanism 3 simultaneously generate a middle thrust and a pull on both sides of the pitch adjustment plate 13 at three points of action, and the structure is more stable.
[0020] Furthermore, an azimuth adjustment mechanism 11 is installed on the top of the pitch adjustment plate 13. The left and right adjustment screws on the azimuth adjustment mechanism 11 can be rotated respectively to act on the rotating block of the gantry 4 to perform azimuth adjustment. Locking nuts are set on the left and right adjustment screws on the azimuth adjustment mechanism 11. The azimuth adjustment generates a force by rotating the left and right adjustment screws on the azimuth adjustment mechanism 11 to push the rotating block of the gantry 4 to rotate along the center of the hole axis of the gantry 4 and the pitch adjustment plate 13 to realize the azimuth adjustment action. After adjustment is in place, the gantry 4 and the pitch adjustment plate 13 are fixed with screws.
[0021] Furthermore, linear guide rails 9 on both sides are set between the height adjustment bracket 7 and the gantry 4 to realize directional linear motion. The height adjustment is achieved through the scissor lift 8 to generate a force to move the height adjustment bracket 7 up and down relative to the gantry 4 to realize the height adjustment action. Linear guide rails 9 on both sides are set between the height adjustment bracket 7 and the gantry 4 to realize directional linear motion. The collimator fixing frame 6 is assembled on the height adjustment bracket 7, and the collimator fixing frame 6 is adjusted in linkage. When the height adjustment is adjusted into place, the gantry 4 and the collimator fixing frame 6 are fixed using screws to achieve height position fixation.
[0022] Furthermore, the left and right adjusting screws on the roll adjustment mechanism 10 can be rotated respectively to act on the rotating block that pushes the collimator to perform roll adjustment. Locking nuts are set on the left and right adjusting screws on the roll adjustment mechanism 10. The roll adjustment is achieved by rotating the left and right adjusting screws on the roll adjustment mechanism 10 to generate a force, pushing the rotating block of the collimator to rotate along the center of the collimator fixing ring 5 to achieve the roll adjustment action. After adjustment is in place, the locking nut is used to fix it.
[0023] When in use, when the pitch adjustment is performed by rotating the pitch adjustment screw 2 relative to the pitch adjustment plate 13 to generate a force, the pitch adjustment plate 13 rotates along the center of the hinge shaft 12 to achieve the pitch adjustment action. After the adjustment is in place, the pitch locking mechanism 3 nuts are used to tighten the pitch adjustment plate 13 from top to bottom, and then the double nuts are locked. The pitch adjustment screw 2 and the pitch locking mechanism 3 simultaneously generate a middle thrust and a two-side pull on the pitch adjustment plate 13 at three points of action, and the structure is more stable. In conjunction with the azimuth adjustment, the left and right adjustment screws on the rotating azimuth adjustment mechanism 11 generate a force to push the rotating block of the gantry 4 to rotate along the hole axis of the gantry 4 and the pitch adjustment plate 13 to achieve the azimuth adjustment action. After the adjustment is in place, the gantry is tightened using the screws 4 is fixed to the pitch adjustment plate 13. At the same time, when the height is adjusted, the scissor lift 8 generates a force to make the height adjustment bracket 7 move up and down relative to the gantry 4 to achieve the height adjustment action. Linear guide rails 9 on both sides are set between the height adjustment bracket 7 and the gantry 4 to achieve directional linear motion. The collimator fixing frame 6 is assembled on the height adjustment bracket 7. The collimator fixing frame 6 is adjusted in linkage. When the height adjustment is adjusted into place, the gantry 4 and the collimator fixing frame 6 are fixed using screws to achieve a fixed height position. Finally, the roll adjustment is achieved by rotating the left and right adjusting screws on the roll adjustment mechanism 10 to generate a force to push the rotating block of the collimator to rotate along the center of the collimator fixing ring 5 to achieve the roll adjustment action. After adjustment is in place, it is fixed with a locking nut.
[0024] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. An optical axis adjustment device for a large-aperture collimator, characterized in that: include: A base plate (1) is provided, wherein the base plate (1) and the pitch adjustment plate (13) are connected via a hinge shaft (12), a pitch adjustment screw (2) is installed on one side of the top of the pitch adjustment plate (13), and a pitch locking mechanism (3) is installed on the left and right sides of the base plate (1) from the bottom, the pitch adjustment plate (13) is installed in a hole-axis matching manner with the gantry (4) and can rotate along the center, the gantry (4) and the pitch adjustment plate (13) are provided with mounting holes (14) and threads (15) both of which are connected with the screw threads (15), the gantry (4) and the height adjustment bracket (7) are connected via a scissor lift (8), the top of the height adjustment bracket (7) is equipped with a collimator fixing frame (6), the top of the collimator fixing frame (6) is equipped with a collimator fixing ring (5), and the top of the collimator fixing ring (5) is equipped with a roll adjustment mechanism (10).
2. The optical axis adjustment device for a large-aperture collimator according to claim 1, characterized in that: The pitch adjustment screw (2) is arranged in the middle of the adjustment end of the pitch adjustment plate (13) and is rotatable with the hinge shaft (12) for pitch adjustment. The pitch adjustment plate (13) is provided with a thread (15) adapted to the pitch adjustment screw (2).
3. The optical axis adjustment device for a large-aperture collimator according to claim 1, characterized in that: The top of the pitch adjustment plate (13) is equipped with an azimuth adjustment mechanism (11). The left and right adjustment screws on the azimuth adjustment mechanism (11) can respectively rotate to act on the rotating block that pushes the gantry (4) to adjust the azimuth. Locking nuts are provided on the left and right adjustment screws on the azimuth adjustment mechanism (11).
4. The optical axis adjustment device for a large-aperture collimator according to claim 1, characterized in that: Linear guide rails (9) on both sides are provided between the height adjustment bracket (7) and the gantry (4) to achieve directional linear motion.
5. The optical axis adjustment device for a large-aperture collimator according to claim 1, characterized in that: The left and right adjusting screws on the roll adjustment mechanism (10) can respectively rotate to act on a rotating block that pushes the parallel light tube to perform roll adjustment, and locking nuts are provided on the left and right adjusting screws on the roll adjustment mechanism (10).