Multi-degree-of-freedom adjusting device for laser interferometer

Abstract

The utility model belongs to the technical field of laser interferometers, and particularly relates to a laser interferometer multi-degree-of-freedom adjusting device which comprises a platform assembly, an adjusting assembly is arranged on the outer wall of the platform assembly, the platform assembly comprises a supporting plate, a sliding rail is fixedly connected to the outer wall of the supporting plate, a sliding groove is formed in the outer wall of the supporting plate, and the adjusting assembly is arranged on the outer wall of the supporting plate. A motor is fixedly connected to the outer wall of the supporting plate, and the output end of the motor is fixedly connected with a threaded rod. According to the multi-degree-of-freedom adjusting device for the laser interferometer, through the use of the adjusting assembly, the second fluted disc and the first fluted disc can be staggered only by pressing the pressing column towards the direction of the hollow column and rotating the pressing column, so that the pitching angle is rapidly adjusted, after adjustment is completed, the elastic force of the compression spring is released, the second fluted disc and the connecting column are pushed to reset, and the first fluted disc and the second fluted disc are meshed again; therefore, not only is the adjusting speed improved, but also the adjusting accuracy and stability are ensured, and the operation efficiency is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of laser interferometers, in particular to a multi-degree-of-freedom adjustment device for laser interferometers. Background Art

[0002] A laser interferometer is a precision measuring instrument that uses the interference of laser beams to measure parameters such as object shape, surface quality, and displacement. Its working principle is based on the laser interference phenomenon. When two coherent laser beams are simultaneously irradiated on the surface of the object being measured, they will produce interference fringes. By analyzing the changes in these interference fringes, the relevant parameters of the object being measured can be calculated.

[0003] At present, the pitch angle of the existing laser interferometer multi-degree-of-freedom adjustment device is usually adjusted using a pitch angle adjustment knob. Since the adjustment range of the pitch angle adjustment knob is limited and needs to be fine-tuned step by step, the adjustment speed is relatively slow, which may lead to reduced operating efficiency when the pitch angle needs to be adjusted quickly. In view of this, a laser interferometer multi-degree-of-freedom adjustment device is proposed. Utility Model Content

[0004] The main purpose of the utility model is to provide a multi-degree-of-freedom adjustment device for a laser interferometer, which can solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the laser interferometer multi-degree-of-freedom adjustment device proposed in the present invention includes a platform component, an adjustment component is provided on the outer wall of the platform component, and the platform component includes:

[0006] A support plate, a slide rail is fixedly connected to the outer wall of the support plate, a slide groove is opened on the outer wall of the support plate, a motor is fixedly connected to the outer wall of the support plate, a threaded rod is fixedly connected to the output end of the motor, and the threaded rod is rotatably connected to the inner wall of the slide groove, a threaded slider is threaded on the outer wall of the threaded rod, and the threaded slider is slidably connected to the slide groove.

[0007] Preferably, an adjustment table is slidably connected to the outer wall of the slide rail, the adjustment table is fixedly connected to the outer wall of the threaded slider, the end of the adjustment table away from the threaded slider is fixedly connected to a turntable, the outer wall of the turntable is slidably connected to a connecting plate, the outer wall of the connecting plate is fixedly connected to a laser interferometer, and the turntable is used to adjust the connecting plate and the laser interferometer in the yaw direction.

[0008] Preferably, the adjustment assembly includes a mounting plate, a support column is fixedly connected to the outer wall of the mounting plate, the support column is fixedly connected to a hollow column at one end away from the mounting plate, a compression spring is slidably connected to the inner wall of the hollow column, and one end of the compression spring is fixedly connected to the inner wall of the hollow column, the other end of the compression spring is fixedly connected to a gasket, and the gasket is slidably connected to the inner wall of the hollow column, and a plurality of holes are provided on the mounting plate, which can adapt to different installation environments and requirements.

[0009] Preferably, one end of the hollow column away from the compression spring is fixedly connected to a toothed disc 1, a toothed disc 2 is engaged on the outer wall of the toothed disc 1, the toothed disc 2 is slidably connected to the inner wall of the hollow column, and the toothed disc 2 abuts against the outer wall of the gasket.

[0010] Preferably, a connecting column is fixedly connected to the outer wall of the second gear disc, and the connecting column passes through the first gear disc and is slidably connected to it. The end of the connecting column away from the second gear disc is fixedly connected to a pressing column, and the end of the pressing column away from the connecting column is fixedly connected to the outer wall of the support plate.

[0011] Preferably, a dustproof ring shell is fixedly connected to the outer wall of the pressing column, and an annular groove is opened on the outer wall of the hollow column.

[0012] Preferably, the dustproof ring shell is slidably connected to the inner wall of the ring groove, and the dustproof ring shell matches the ring groove.

[0013] Preferably, an elastic telescopic rod is fixedly connected to the outer wall of the annular groove, and the elastic telescopic rod is in contact with the dustproof ring shell. The elastic telescopic rod has a built-in spring for providing a reset effect for the dustproof ring shell.

[0014] The utility model provides a multi-degree-of-freedom adjustment device for a laser interferometer. It has the following beneficial effects:

[0015] (1) The multi-degree-of-freedom adjustment device of the laser interferometer uses an adjustment component. It only needs to press the pressing column in the direction of the hollow column and rotate it to make the second sprocket and the first sprocket displaced, thereby quickly adjusting the pitch angle. After the adjustment is completed, the elastic force of the compression spring is released, pushing the second sprocket and the connecting column to reset, so that the first sprocket and the second sprocket are re-engaged and fixed. This not only improves the adjustment speed, but also ensures the accuracy and stability of the adjustment, and significantly improves the operating efficiency.

[0016] (2) The multi-degree-of-freedom adjustment device of the laser interferometer effectively prevents dust and debris from entering the interior of the device through the use of a dustproof ring shell, protecting the precision parts from pollution and wear. At the same time, the use of the elastic telescopic rod and the dustproof ring shell not only provides a stable support for the dustproof ring shell, but also realizes the automatic reset of the dustproof ring shell after the adjustment is completed, ensuring the continuity of the dustproof effect, which not only improves the overall performance of the device but also extends its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the partial cross-sectional structure of the utility model Figure 1 ;

[0020] Figure 3 This is a schematic diagram of the partial cross-sectional structure of the utility model Figure 2 ;

[0021] Figure 4 For this utility model Figure 2 Schematic diagram of the structure of A in the middle;

[0022] Figure 5 For this utility model Figure 3 Schematic diagram of the structure of middle B;

[0023] Figure 6 For this utility model Figure 5 Schematic diagram of the C structure.

[0024] Description of Figure Numbers:

[0025] 1. Platform assembly; 2. Adjustment assembly; 11. Support plate; 111. Slide rail; 112. Motor; 113. Slide groove; 114. Threaded rod; 115. Threaded slider; 12. Adjustment table; 121. Turntable; 13. Connecting plate; 14. Laser interferometer; 21. Mounting plate; 22. Support column; 23. Hollow column; 231. Ring groove; 232. Elastic telescopic rod; 24. Compression spring; 25. Gasket; 26. Sprocket 1; 27. Sprocket 2; 28. Connecting column; 29. ​​Press column; 291. Dustproof ring shell.

[0026] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] See also Figures 1-6 The utility model provides a multi-degree-of-freedom adjustment device for a laser interferometer, comprising a platform component 1, an adjustment component 2 being provided on the outer wall of the platform component 1, and the platform component 1 comprising:

[0029] The support plate 11 has a slide rail 111 fixedly connected to the outer wall of the support plate 11. The slide rail 111 provides a guide for the horizontal movement of the adjustment platform 12. A slide groove 113 is provided on the outer wall of the support plate 11. A motor 112 is fixedly connected to the outer wall of the support plate 11. The output end of the motor 112 is fixedly connected to a threaded rod 114, and the threaded rod 114 is rotatably connected to the inner wall of the slide groove 113. A threaded slider 115 is threadedly connected to the outer wall of the threaded rod 114, and the threaded slider 115 is slidably connected to the slide groove 113. The outer wall of the slide rail 111 is slidably connected to the adjustment platform 12. The adjustment platform 12 is fixedly connected to the outer wall of the threaded slider 115, and the motor 112 is started. The output end of the motor 112 drives the threaded rod 114 to rotate, and the threaded slider 115 will move along the axial direction of the threaded rod 114, which will drive the adjustment table 12 and the laser interferometer 14 to move left and right. The end of the adjustment table 12 away from the threaded slider 115 is fixedly connected to the turntable 121, and the outer wall of the turntable 121 is slidably connected to the connecting plate 13, and the outer wall of the connecting plate 13 is fixedly connected to the laser interferometer 14. The turntable 121 is used to adjust the connecting plate 13 and the laser interferometer 14 in the yaw direction.

[0030] Furthermore, the adjustment component 2 includes a mounting plate 21, a support column 22 is fixedly connected to the outer wall of the mounting plate 21, and a plurality of holes are provided on the mounting plate 21 to adapt to different installation environments and requirements. The end of the support column 22 away from the mounting plate 21 is fixedly connected to a hollow column 23, and a compression spring 24 is slidably connected to the inner wall of the hollow column 23, and one end of the compression spring 24 is fixedly connected to the inner wall of the hollow column 23, and the other end of the compression spring 24 is fixedly connected to a gasket 25, and the gasket 25 and the hollow column 23 are fixedly connected. The inner wall is slidably connected. The compression spring 24 may generate friction with adjacent parts during rotation, resulting in wear. The use of the gasket 25 can reduce this friction. The end of the hollow column 23 away from the compression spring 24 is fixedly connected to a toothed disc 1 26. A toothed disc 27 is engaged on the outer wall of the toothed disc 1 26. The toothed disc 27 is slidably connected to the inner wall of the hollow column 23, and the toothed disc 27 abuts on the outer wall of the gasket 25. A connecting column 28 is fixedly connected to the outer wall of the toothed disc 27, and the connecting column 28 passes through the toothed disc 1 26. 6 is slidably connected to it, and the end of the connecting column 28 away from the toothed disc 27 is fixedly connected to the pressing column 29, and the end of the pressing column 29 away from the connecting column 28 is fixedly connected to the outer wall of the support plate 11. The outer wall of the pressing column 29 is fixedly connected to a dustproof ring shell 291. An annular groove 231 is provided on the outer wall of the hollow column 23. The dustproof ring shell 291 is slidably connected to the inner wall of the annular groove 231, and the dustproof ring shell 291 matches the annular groove 231. The dustproof ring shell 291 is used to prevent dust and debris from entering the hollow column 23. The adjustment function is not affected. An elastic telescopic rod 232 is fixedly connected to the outer wall of the annular groove 231, and the elastic telescopic rod 232 is in contact with the dustproof ring shell 291. The elastic telescopic rod 232 has a built-in spring for providing a reset effect for the dustproof ring shell 291. When the pitch angle needs to be adjusted, the pressing column 29 is pressed toward the hollow column 23, driving the connecting column 28 and the second toothed disc 27 to slide in the opposite direction of the compression spring 24 and compress the compression spring 24. At the same time, the pressing column 29 is rotated to dislocate the second toothed disc 27 and the first toothed disc 26.

[0031] It should be noted that the above-mentioned electrical components are all existing technology products. Technical personnel in this field select, install and complete the circuit debugging work according to the needs of use to ensure that all electrical appliances can work normally. The components are all universal standard parts or components known to technical personnel in this field. Their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods. The applicant does not make specific restrictions here.

[0032] When the pressing post 29 is pressed, the first gear 26 and the second gear 27 are disengaged, and the pressing post 29 is rotated. At the same time, the pressing post 29 drives the second gear 27 and the connecting post 28 to rotate together. After the adjustment is completed, the operator releases the pressing post 29, and the elastic force of the compression spring 24 is released, pushing the second gear 27 and the connecting post 28 to return to their original position, so that the first gear 26 is engaged with the second gear 27 and the fixing is completed. At the same time, the dustproof ring shell 291 will also be reset under the action of the elastic telescopic rod 232 to maintain the dustproof effect.

[0033] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A laser interferometer multi-degree-of-freedom adjustment device, comprising a platform assembly (1), characterized in that: An adjustment component (2) is provided on the outer wall of the platform component (1), and the platform component (1) comprises: A support plate (11) is provided, wherein a slide rail (111) is fixedly connected to the outer wall of the support plate (11), a slide groove (113) is provided on the outer wall of the support plate (11), a motor (112) is fixedly connected to the outer wall of the support plate (11), an output end of the motor (112) is fixedly connected to a threaded rod (114), and the threaded rod (114) is rotatably connected to the inner wall of the slide groove (113), a threaded slider (115) is threadedly connected to the outer wall of the threaded rod (114), and the threaded slider (115) is slidably connected to the slide groove (113).

2. The multi-degree-of-freedom adjustment device for a laser interferometer according to claim 1, characterized in that: An adjustment platform (12) is slidably connected to the outer wall of the slide rail (111), the adjustment platform (12) is fixedly connected to the outer wall of the threaded slider (115), and one end of the adjustment platform (12) away from the threaded slider (115) is fixedly connected to a turntable (121), a connecting plate (13) is slidably connected to the outer wall of the turntable (121), and a laser interferometer (14) is fixedly connected to the outer wall of the connecting plate (13).

3. The multi-degree-of-freedom adjustment device for a laser interferometer according to claim 1, characterized in that: The adjustment assembly (2) comprises a mounting plate (21), a support column (22) is fixedly connected to the outer wall of the mounting plate (21), an end of the support column (22) away from the mounting plate (21) is fixedly connected to the hollow column (23), a compression spring (24) is slidably connected to the inner wall of the hollow column (23), and one end of the compression spring (24) is fixedly connected to the inner wall of the hollow column (23), and the other end of the compression spring (24) is fixedly connected to a gasket (25), and the gasket (25) is slidably connected to the inner wall of the hollow column (23).

4. The multi-degree-of-freedom adjustment device for a laser interferometer according to claim 3, characterized in that: One end of the hollow column (23) away from the compression spring (24) is fixedly connected to a toothed disc 1 (26), and a toothed disc 2 (27) is meshed on the outer wall of the toothed disc 1 (26). The toothed disc 2 (27) is slidably connected to the inner wall of the hollow column (23), and the toothed disc 2 (27) abuts against the outer wall of the gasket (25).

5. The multi-degree-of-freedom adjustment device for a laser interferometer according to claim 4, characterized in that: A connecting column (28) is fixedly connected to the outer wall of the second toothed disc (27), and the connecting column (28) passes through the first toothed disc (26) and is slidably connected thereto. An end of the connecting column (28) away from the second toothed disc (27) is fixedly connected to a pressing column (29), and an end of the pressing column (29) away from the connecting column (28) is fixedly connected to the outer wall of the support plate (11).

6. The multi-degree-of-freedom adjustment device for a laser interferometer according to claim 5, characterized in that: A dustproof ring shell (291) is fixedly connected to the outer wall of the pressing column (29), and an annular groove (231) is provided on the outer wall of the hollow column (23).

7. The multi-degree-of-freedom adjustment device for a laser interferometer according to claim 6, characterized in that: The dustproof ring shell (291) is slidably connected to the inner wall of the ring groove (231), and the dustproof ring shell (291) matches the ring groove (231).

8. The multi-degree-of-freedom adjustment device for a laser interferometer according to claim 7, characterized in that: An elastic telescopic rod (232) is fixedly connected to the outer wall of the annular groove (231), and the elastic telescopic rod (232) is in contact with the dustproof annular shell (291).

Images