Angle-adjustable optical precision combined displacement table

Abstract

The utility model relates to the technical field of optical combination, and discloses an angle-adjustable optical precision combination displacement table which comprises a table top and a square shell, a first rotating column is rotatably connected to the bottom of the interior of the square shell, and a second cylindrical sleeve is rotatably connected to the bottom of the first rotating column. A circular groove is formed in the position, close to the middle, of the top of the second cylindrical sleeve, a plurality of ratchet wheels are fixedly connected to the upper end of the outer wall of the first rotating column, clamping blocks are connected to the outer walls of the ratchet wheels in a meshed mode, the inner walls of the clamping blocks are fixedly connected with the second rotating column, and a connecting column is fixedly connected to the front side of each clamping block. When leftward angle adjustment is needed, a pressing column on the right side is pulled, at the moment, the pressing column drives a connecting column to be pulled out, meanwhile, a front baffle and a rear baffle extrude a second spring, then a clamping block leaves a ratchet wheel, a positioning platform is rotated at the moment, leftward and rightward adjustment can be achieved according to the use condition, and adjustment is convenient. Therefore, the combination requirement is met.

Description

Technical Field

[0001] The utility model relates to the technical field of optical combination, in particular to an optically precise combined displacement stage with adjustable angle. Background Art

[0002] Optics is an important branch of physics, which involves the interaction between light and matter, and the photoelectric effect. These research results are applied in imaging technology and communication. However, when manufacturing optical products, an optically precise combined displacement stage is required. The optically precise combined displacement stage is a high-precision experimental device, which mainly consists of multiple displacement axes. Linear guides are generally used for the guides, which have the characteristics of low friction and high rigidity, and can ensure the linearity and stability of the displacement stage during movement. Common transmission devices include ball screws and piezoelectric ceramic actuators. The ball screw can provide relatively precise micron-level displacement control, while the piezoelectric ceramic actuator can achieve higher-precision nanometer-level displacement adjustment. Moreover, it is also equipped with a position detection device. These sensors can real-time feedback the position information of the displacement stage, so that the displacement accuracy can be precisely controlled within a very small error range. However, during the displacement adjustment process, the angle often needs to be adjusted.

[0003] The existing angle-adjustable mechanism realizes the angle adjustment function based on precise mechanical and control principles. From the perspective of the mechanical structure, it usually includes a rotating shaft, a high-precision bushing, and an angle scale. The rotating shaft is the core component, generally made of materials with high hardness and low friction coefficient, such as stainless steel or special alloys, to ensure stability and accuracy during rotation. The bushing fits tightly with the rotating shaft to provide support and reduce friction. The internal microstructure and lubrication treatment are one of the key factors to ensure high-precision rotation. The angle scale is used to visually display the rotation angle, and the scale accuracy can reach a very high level. For example, in some high-precision devices, it can be accurate to a few minutes or even smaller. However, this method of adjusting the angle has a high cost, and material wear will occur after long-term use, thus affecting the adjustment accuracy and fixing strength. Summary of the Utility Model

[0004] In order to make up for the above deficiencies, the utility model provides an optically precise combined displacement stage with adjustable angle, aiming to improve the problems in the prior art that the method of adjusting the angle has a high cost, and material wear will occur after long-term use, thus affecting the adjustment accuracy and fixing strength.

[0005] To achieve the above object, the utility model adopts the following technical solutions: an optically precise combined displacement stage with adjustable angle, including a tabletop and a square shell. A first rotating column is rotatably connected to the inner bottom of the square shell. A second cylindrical sleeve is rotatably connected to the bottom of the first rotating column. A circular groove is provided near the middle at the top of the second cylindrical sleeve. A plurality of ratchets are fixedly connected to the upper end of the outer wall of the first rotating column. A clamping block is meshed with the outer wall of the ratchet. A second rotating column is fixedly connected to the inner wall of the clamping block. A connecting column is fixedly connected to the front side of the clamping block. A second spring is slidably connected to the outer wall of the connecting column. A pressing column is fixedly connected to the front end of the connecting column. A cover plate is fixedly connected to the top of the square shell. A disassembly mechanism is provided on the top of the tabletop for disassembly and replacement.

[0006] As a further description of the above technical solution:

[0007] The disassembly mechanism includes a plurality of first cylindrical sleeves. The adjacent ones of the plurality of first cylindrical sleeves are fixedly connected to the left and right ends of the square shell. A first spring is fixedly connected to the inside of the first cylindrical sleeve. A connecting rod is fixedly connected to the left end of the first spring. A connecting plate is fixedly connected to the top of the left end of the connecting rod. A first threaded rod is threadedly connected to the inner wall of the connecting plate. A threaded sleeve is threadedly connected to the left end of the outer wall of the first threaded rod. Two positioning rods are fixedly connected to the top of the cover plate.

[0008] As a further description of the above technical solution:

[0009] A positioning platform is slidably connected to the top of both of the two positioning rods. The left and right ends of the positioning platform are fixedly connected to a plurality of first threaded rods.

[0010] As a further description of the above technical solution:

[0011] Two threaded holes are fixedly provided on the top of the positioning platform. Positioning pins are threadedly connected to the inner walls of the two threaded holes.

[0012] As a further description of the above technical solution:

[0013] A first fixing block is fixedly connected to the front left end of the tabletop. A first motor is fixedly connected to the inside of the first fixing block. A plurality of foot pads are fixedly connected to the four corners of the bottom of the tabletop. A rear baffle is fixedly connected to the rear end of the outer wall of the connecting column. A front baffle is slidably connected to the front end of the outer wall of the connecting column.

[0014] As a further description of the above technical solution:

[0015] The output end of the first motor is fixedly connected to a second threaded rod. The rear end of the second threaded rod is rotatably connected to the rear side of the top of the tabletop.

[0016] As a further description of the above technical solution:

[0017] The outer wall of the second threaded rod is threadedly connected with a second arcuate block, and the right side of the second arcuate block is slidably connected with a sliding column.

[0018] As a further description of the above technical solution:

[0019] Both the front and rear ends of the sliding column are fixedly connected with a plurality of square baffles, and the bottom of the square baffles is fixedly connected with the top of the tabletop.

[0020] As a further description of the above technical solution:

[0021] The right side of the second arcuate block is fixedly connected with a second fixing block, and the top of the second fixing block is fixedly connected with a second motor.

[0022] As a further description of the above technical solution:

[0023] The output end of the second motor is fixedly connected with a third threaded rod, and the outer wall of the third threaded rod is threadedly connected with the inner wall of the first arcuate block.

[0024] The utility model has the following beneficial effects:

[0025] 1. In the utility model, when the angle needs to be adjusted to the left, the pressing column on the right side is pulled. At this time, the pressing column drives the connecting column to be pulled outwards. At the same time, the front baffle and the rear baffle will squeeze the second spring, and then the connecting column will drive the clamping block to move outwards. At this time, the clamping block rotates on the outer wall of the second rotating column, and then the clamping block leaves the ratchet wheel. At this time, the positioning platform is rotated, and the ratchet wheel will drive the first rotating column to rotate inside the circular groove of the second cylindrical sleeve, and then the first rotating column drives the square shell and the cover plate to rotate, realizing the function of being able to adjust to the left and right according to the usage situation to meet the combined requirements.

[0026] 2. In the utility model, when the positioning platform needs to be disassembled, first unscrew the threaded sleeve. At this time, the threaded sleeve leaves the first threaded rod, and then the first threaded rod is pulled outwards to drive the connecting plate. At this time, the connecting plate will drive the connecting rod to move outwards, and the connecting rod will pull the first spring to deform. Then the connecting plate will leave the first threaded rod. At this time, the positioning platform is lifted upwards, and the positioning platform leaves the positioning rod. When installation is required, similarly, the connecting plate is pulled open, the positioning platform drives the first threaded rod to be stuck inside the connecting plate, and then the positioning platform is stuck inside the positioning rod. At the same time, the threaded sleeve is rotated and installed, realizing the function of being able to disassemble and replace the positioning platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a front three-dimensional view of the adjustable-angle optical precision combined displacement stage proposed by the present utility model;

[0028] Figure 2 Top plan view of the top of the adjustable-angle optical precision combined displacement stage proposed by the present utility model;

[0029] Figure 3 Partial structural exploded view of the positioning platform of the adjustable-angle optical precision combined displacement stage proposed by the present utility model;

[0030] Figure 4 Partial structural exploded view of the connecting rod of the adjustable-angle optical precision combined displacement stage proposed by the present utility model;

[0031] Figure 5 Partial structural exploded view of the square shell of the adjustable-angle optical precision combined displacement stage proposed by the present utility model;

[0032] Figure 6 Partial structural exploded view of the connecting column of the adjustable-angle optical precision combined displacement stage proposed by the present utility model.

[0033] Legend:

[0034] 1. Tabletop; 2. Dismantling mechanism; 201. First cylindrical sleeve; 202. First spring; 203. Connecting rod; 204. Connecting plate; 205. First threaded rod; 206. Threaded sleeve; 207. Positioning rod; 3. Square shell; 4. First rotating column; 5. Second cylindrical sleeve; 6. Circular groove; 7. Ratchet; 8. Block; 9. Second rotating column; 10. Connecting column; 11. Second spring; 12. Pressing column; 13. Front baffle; 14. Rear baffle; 15. First bow-shaped block; 16. Foot pad; 17. Cover plate; 18. Positioning platform; 19. Second threaded hole; 20. Positioning pin; 21. First fixing block; 22. First motor; 23. Second threaded rod; 24. Second bow-shaped block; 25. Square baffle; 26. Sliding column; 27. Second fixing block; 28. Second motor; 29. Third threaded rod. Detailed implementation manners

[0035] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts fall within the protection scope of the present utility model.

[0036] Please refer to the appended Figure 1 and appended Figure 5 and appended Figure 6, an embodiment provided by the present utility model: an optically precise combined displacement stage with adjustable angle, including a tabletop 1 and a square shell 3. The square shell 3 plays a role in protecting the whole. At the inner bottom of the square shell 3, a first rotating column 4 is rotatably connected. At the bottom of the first rotating column 4, a second cylindrical sleeve 5 is rotatably connected. A circular groove 6 is provided near the middle at the top of the second cylindrical sleeve 5, making the overall connection more stable. At the upper end of the outer wall of the first rotating column 4, a plurality of ratchets 7 are fixedly connected. The outer walls of the ratchets 7 are meshed with a block 8. The double-ratchet 7 system enables the whole to move in only one direction during adjustment and can be stably locked. Inside the wall of the block 8, a second rotating column 9 is fixedly connected. At the front side of the block 8, a connecting column 10 is fixedly connected. A second spring 11 is slidably connected to the outer wall of the connecting column 10. At the front end of the connecting column 10, a pressing column 12 is fixedly connected, which can drive the block 8 to move. At the top of the square shell 3, a cover plate 17 is fixedly connected, which plays a role of covering. A disassembly mechanism 2 is provided on the top of the tabletop 1. The disassembly mechanism 2 is used for disassembly and replacement;

[0037] Specifically, the device includes a tabletop 1 and a square shell 3. At the inner bottom of the square shell 3, a first rotating column 4 is rotatably connected. At the bottom of the first rotating column 4, a second cylindrical sleeve 5 is rotatably connected. A circular groove 6 is provided near the middle at the top of the second cylindrical sleeve 5. At the upper end of the outer wall of the first rotating column 4, a plurality of ratchets 7 are fixedly connected. The outer walls of these ratchets 7 are meshed with a block 8. Inside the wall of the block 8, a second rotating column 9 is fixedly connected. At the front side of the block 8, a connecting column 10 is fixedly connected. A second spring 11 is slidably connected to the outer wall of the connecting column 10 to provide a certain elastic force. At the front end of the connecting column 10, a pressing column 12 is fixedly connected. The pressing column 12 is for user operation. At the top of the square shell 3, a cover plate 17 is fixedly connected to protect the internal structure from the outside. A disassembly mechanism 2 is provided on the top of the tabletop 1. The disassembly mechanism 2 is used for disassembly and replacement.

[0038] Please refer to the appendix Figure 1 、appendix Figure 3 and appendix Figure 4 , the disassembly mechanism 2 includes a plurality of first cylindrical sleeves 201. The adjacent ones of the plurality of first cylindrical sleeves 201 are fixedly connected to the left and right ends of the square shell 3. A first spring 202 is fixedly connected inside the first cylindrical sleeve 201, providing elastic support for the whole. At the left end of the first spring 202, a connecting rod 203 is fixedly connected. At the top of the left end of the connecting rod 203, a connecting plate 204 is fixedly connected, which plays a role of connection. A first threaded rod 205 is threadedly connected to the inner wall of the connecting plate 204. A threaded sleeve 206 is threadedly connected to the left end of the outer wall of the first threaded rod 205. Two positioning rods 207 are fixedly connected to the top of the cover plate 17, which play a role of positioning;

[0039] Specifically, the disassembly mechanism 2 includes a plurality of cylindrical sleeves 201, which are firmly fixedly connected to the square shell 3 at both the left and right ends. Inside each cylindrical sleeve 201, a first spring 202 is fixedly installed. The function of these first springs 202 is to provide the necessary elastic force. The left end of each first spring 202 is connected to a connecting rod 203. The top of the left end of the connecting rod 203 is fixedly connected to a connecting plate 204. The inner wall of the connecting plate 204 is tightly connected to a first threaded rod 205 by means of threads. The left end of the outer wall of the first threaded rod 205 is threadedly connected to a threaded sleeve 206. In addition, at the top of the cover plate 17, two positioning rods 207 are fixedly connected. The function of these positioning rods 207 is to ensure the accuracy and stability of the disassembly mechanism 2 during operation.

[0040] Please refer to the attached Figure 1 、attached Figure 2 and attached Figure 3 . A positioning platform 18 is slidably connected to the tops of the two positioning rods 207. The left and right ends of the positioning platform 18 are fixedly connected to a plurality of first threaded rods 205, enabling the whole to move horizontally. Two threaded holes 19 are fixedly opened at the top of the positioning platform 18. The inner walls of the two threaded holes 19 are threadedly connected to positioning pins 20, which play a positioning role. A first fixed block 21 is fixedly connected to the front left side of the table 1. A first motor 22 is fixedly connected inside the first fixed block 21, providing a power source. A plurality of foot pads 16 are fixedly connected to the four surrounding areas of the bottom of the table 1. A rear baffle 14 is fixedly connected to the rear end of the outer wall of the connecting column 10. A front baffle 13 is slidably connected to the front end of the outer wall of the connecting column 10. The output end of the first motor 22 is fixedly connected to a second threaded rod 23. The rear end of the second threaded rod 23 is rotatably connected to the rear side of the top of the table 1, enabling the whole to move horizontally;

[0041] Specifically, the top parts of the two positioning rods 207 are slidably connected to the positioning platform 18. The left and right ends of this positioning platform 18 are combined with a plurality of first threaded rods 205 through fixed connection. Two threaded holes 19 are fixedly opened on the upper surface of the positioning platform 18. The inner walls of these two threaded holes 19 can be threadedly connected to the positioning pins 20. At the front left part of the table 1, a first fixed block 21 is fixedly connected. A first motor 22 is fixedly connected inside the first fixed block 21. To provide stable support, a plurality of foot pads 16 are fixedly connected to the four surrounding areas of the bottom of the table 1. In addition, a rear baffle 14 is fixedly connected to the rear part of the outer wall of the connecting column 10. The front part of the outer wall of the connecting column 10 is slidably connected to the front baffle 13 to facilitate adjusting the position of the front baffle 13 as needed. The output end of the first motor 22 is fixedly connected to a second threaded rod 23. The rear part of the second threaded rod 23 is rotatably connected to the rear side of the top of the table 1, thereby realizing a precise adjustment function.

[0042] Please refer to the attached Figure 1 attachment Figure 2 attachment Figure 5 and attachment

[0043] Specifically, the outer wall of the second threaded rod 23 is designed with threads to facilitate the threaded connection of the second arcuate block 24. The right side of the second arcuate block 24 is slidably connected to the sliding column 26. A plurality of square baffles 25 are fixedly connected to the front and rear ends of the sliding column 26. The bottom of the square baffle 25 is fixedly connected to the top of the table 1. A second fixing block 27 is fixedly connected to the right side of the second arcuate block 24, which plays a role in fixing and supporting. A second motor 28 is fixedly connected to the top of the second fixing block 27. The output end of the second motor 28 is fixedly connected to the third threaded rod 29. The outer wall of the third threaded rod 29 is threadedly connected to the inner wall of the first arcuate block 15, enabling the whole to move longitudinally;

[0044] Working principle: When the angle needs to be adjusted to the left, pull the pressing column 12 on the right side. At this time, the pressing column 12 drives the connecting column 10 to be pulled outwards. At the same time, the front baffle 13 and the rear baffle 14 will squeeze the second spring 11. Then the connecting column 10 will drive the latch 8 to move outwards. At this time, the latch 8 rotates on the outer wall of the second rotating column 9. Then the latch 8 leaves the ratchet 7. At this time, rotate the positioning platform 18, and the ratchet 7 will drive the first rotating column 4 to rotate inside the circular groove 6 of the cylindrical sleeve 5. Then the first rotating column 4 drives the square shell 3 and the cover plate 17 to rotate. The cover plate 17 drives the positioning platform 18 to rotate. When it rotates to the appropriate position, release the pressing column 12. The pressing column 12 will recover under the action of the second spring 11, bounce back the connecting column 10 with the latch 8, and lock the ratchet 7, making it impossible to continue adjusting. When adjusting to the right, it is the same principle, achieving the function of being able to adjust to the left and right according to the usage situation to meet the combined requirements;

[0045] When the positioning platform 18 needs to be disassembled, first unscrew the threaded sleeve 206. At this time, the threaded sleeve 206 leaves the first threaded rod 205, and then pull the first threaded rod 205 outwards to drive the connecting plate 204. At this time, the connecting plate 204 will drive the connecting rod 203 to move outwards. The connecting rod 203 will pull the first spring 202 to deform it. Then the connecting plate 204 will leave the first threaded rod 205. At this time, lift the positioning platform 18 upwards. At this time, the positioning platform 18 leaves the positioning rod 207. When installation is required, do the same. Pull the connecting plate 204 apart, drive the first threaded rod 205 with the positioning platform 18 and place it inside the connecting plate 204. Then place the positioning platform 18 in the positioning rod 207. At the same time, rotate and install the threaded sleeve 206, achieving the function of being able to disassemble and replace the positioning platform 18.

[0046] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An adjustable-angle optical precision combined displacement stage, comprising a tabletop (1) and a square shell (3), characterized in that: A rotating column one (4) is rotatably connected to the inner bottom of the square shell (3). The bottom of the rotating column one (4) is rotatably connected to a cylindrical sleeve two (5). A circular groove (6) is provided near the middle at the top of the cylindrical sleeve two (5). A plurality of ratchets (7) are fixedly connected to the upper end of the outer wall of the rotating column one (4). A catch block (8) is meshed with the outer wall of the ratchet (7). A rotating column two (9) is fixedly connected to the inner wall of the catch block (8). A connecting column (10) is fixedly connected to the front side of the catch block (8). A spring two (11) is slidably connected to the outer wall of the connecting column (10). A pressing column (12) is fixedly connected to the front end of the connecting column (10). A cover plate (17) is fixedly connected to the top of the square shell (3). A disassembly mechanism (2) is provided on the top of the tabletop (1), and the disassembly mechanism (2) is used for disassembly and replacement.

2. The adjustable-angle optical precision combined displacement stage according to claim 1, wherein: The disassembly mechanism (2) includes a plurality of cylindrical sleeves one (201). The adjacent ones of the plurality of cylindrical sleeves one (201) are fixedly connected to the left and right ends of the square shell (3). A spring one (202) is fixedly connected to the inside of the cylindrical sleeve one (201). A connecting rod (203) is fixedly connected to the left end of the spring one (202). A connecting plate (204) is fixedly connected to the top of the left end of the connecting rod (203). A threaded rod one (205) is threadedly connected to the inner wall of the connecting plate (204). A threaded sleeve (206) is threadedly connected to the left end of the outer wall of the threaded rod one (205). Two positioning rods (207) are fixedly connected to the top of the cover plate (17).

3. The adjustable-angle optical precision combined displacement stage according to claim 2, wherein: A positioning platform (18) is slidably connected to the top of both of the two positioning rods (207). The left and right ends of the positioning platform (18) are fixedly connected to a plurality of threaded rods one (205).

4. The adjustable-angle optical precision combined displacement stage according to claim 3, wherein: Two threaded holes two (19) are fixedly opened on the top of the positioning platform (18). A positioning pin (20) is threadedly connected to the inner wall of each of the two threaded holes two (19).

5. The adjustable-angle optical precision combined displacement stage according to claim 1, wherein: A fixed block one (21) is fixedly connected to the front left end of the tabletop (1). A motor one (22) is fixedly connected to the inside of the fixed block one (21). A plurality of foot pads (16) are fixedly connected to the four surrounding areas at the bottom of the tabletop (1). A rear baffle (14) is fixedly connected to the rear end of the outer wall of the connecting column (10). A front baffle (13) is slidably connected to the front end of the outer wall of the connecting column (10).

6. The adjustable-angle optical precision combined displacement stage according to claim 5, characterized in that: The output end of the motor one (22) is fixedly connected to a threaded rod two (23). The rear end of the threaded rod two (23) is rotatably connected to the top rear side of the tabletop (1).

7. The adjustable-angle optical precision combined displacement stage according to claim 6, wherein: A bow-shaped block two (24) is threadedly connected to the outer wall of the threaded rod two (23). A sliding column (26) is slidably connected to the right side of the bow-shaped block two (24).

8. The adjustable-angle optical precision combined displacement stage according to claim 7, wherein: A plurality of square baffles (25) are fixedly connected to the front and rear ends of the sliding column (26). The bottom of the square baffle (25) is fixedly connected to the top of the tabletop (1).

9. The adjustable-angle optical precision combined displacement stage according to claim 7, wherein: A fixed block two (27) is fixedly connected to the right side of the bow-shaped block two (24). A motor two (28) is fixedly connected to the top of the fixed block two (27).

10. The adjustable-angle optical precision combined displacement stage according to claim 9, characterized in that: The output end of the second motor (28) is fixedly connected with a third threaded rod (29), and the outer wall of the third threaded rod (29) is in threaded connection with the inner wall of the first bow-shaped block (15).

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