Lockable multi-degree-of-freedom optical path adjustment base

Abstract

The utility model discloses a lockable many degrees of freedom optical path adjusting base belongs to optical optical path adjusting mechanism technical field, including upper adjusting component, lower adjusting component, upper adjusting component includes first adjusting plate, second adjusting plate, and lower adjusting component includes third adjusting plate, base body, the first adjusting plate is clamped with the pitch adjusting block between one end of second adjusting plate, is provided with the first wedge -shaped cooperation mechanism between first adjusting plate and the pitch adjusting block, and the first adjusting screw is rotated and is cooperated on second adjusting plate, two height adjusting blocks are slid and are cooperated between second adjusting plate and third adjusting plate, and the second wedge -shaped cooperation mechanism is set up between second adjusting plate and height adjusting block, and the positive and negative toothed rod is threadedly cooperated on two height adjusting blocks, is provided with Y axle drive mechanism on base body for driving second adjusting plate, first adjusting plate and being driven Y axle direction movement of third adjusting plate. The utility model discloses through the overall structure setting and has realized many degrees of freedom adjustment.

Description

Technical Field

[0001] This utility model belongs to the technical field of optical path adjustment mechanism, specifically relating to a lockable multi-degree-of-freedom optical path adjustment base. Background Technology

[0002] In the production of optical and laser equipment and the construction of experimental instruments, precise installation of light sources, optical paths, and various components within the instruments is required to achieve optimal light path conduction, mirror focusing, collimation, and output energy. However, positional and orientation errors are introduced during actual experiments and assembly. Therefore, adjustments to the optical path are necessary during experimentation and production to maintain the ideal position and orientation of each element within the optical path. Currently, the position and orientation adjustment of light sources and optical path channels is primarily achieved through the support structure components at their base. These base support structure components mainly utilize existing adjustment frames on the market, typically combining multiple sets of two-dimensional adjustment frames. Adjustments in different directions are mostly achieved using screw-driven adjustment methods. The screw used for Z-axis adjustment extends along the Z-axis direction. The disadvantage of this method is the large space required for Z-axis adjustment and the relatively complex structure.

[0003] To facilitate use and ensure that the position and attitude of each element in the light source and optical path can be easily adjusted, to achieve multi-degree-of-freedom adjustment and position locking, and to make the structure simple, small in size and easy to operate, this application proposes a lockable multi-degree-of-freedom optical path adjustment base. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a lockable multi-degree-of-freedom optical path adjustment base.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A lockable multi-degree-of-freedom optical path adjustment base includes an upper adjustment component and a lower adjustment component. The upper adjustment component includes a first adjustment plate and a second adjustment plate arranged sequentially from top to bottom. The lower adjustment component includes a third adjustment plate and a base body arranged sequentially from top to bottom.

[0007] A pitch adjustment block is sandwiched between one end of the first adjustment plate and the second adjustment plate. A first wedge-shaped engagement mechanism is provided between the first adjustment plate and the pitch adjustment block. A first adjustment screw extending along the X-axis direction is rotatably engaged on the second adjustment plate. The first adjustment screw is threadedly connected to the pitch adjustment block. The first adjustment plate and the second adjustment plate are connected by a connecting assembly that adapts to the pitch adjustment of the first adjustment plate relative to the second adjustment plate.

[0008] The second and third adjusting plates are slidably fitted with two symmetrically arranged height adjusting blocks along the X-axis. A second wedge-shaped fitting mechanism is provided between the second adjusting plate and the height adjusting blocks. The two height adjusting blocks are threaded with positive and negative threaded rods extending along the X-axis. When the positive and negative threaded rods rotate, they drive the two height adjusting blocks to move synchronously towards each other or synchronously away from each other. Under the action of the first wedge-shaped fitting mechanism, the second adjusting plate drives the first adjusting plate to move along the Z-axis.

[0009] The bottom end of the third adjustment plate is slidably engaged with the base body in the Y-axis direction. The base body is provided with a Y-axis drive mechanism for driving the third adjustment plate to move the second and first adjustment plates in the Y-axis direction.

[0010] Preferably, the first wedge-shaped mating mechanism includes a first inclined surface disposed at one end of the bottom of the first adjusting plate and a first mating inclined surface disposed at the top of the pitch adjusting block and adapted to the first inclined surface.

[0011] Preferably, the connecting assembly includes a first leaf spring, a second leaf spring, and an ear-mount plate;

[0012] One end of the second adjusting plate, which is connected to the first adjusting screw, is connected to the first adjusting plate via a first leaf spring, and the other end of the second adjusting plate is connected to the first adjusting plate via a second leaf spring.

[0013] The second adjusting plate has ear-hanging plates symmetrically arranged on two sides perpendicular to the Y-axis. The ear-hanging plates are provided with arc-shaped channels adapted to the pitch movement of the first adjusting plate. The first adjusting plate is provided with plug screws that are inserted into the arc-shaped channels.

[0014] Preferably, the second wedge-shaped mating mechanism includes a second inclined surface disposed at the bottom end of the second adjusting plate and a second mating inclined surface disposed at the top end of the height adjusting block and adapted to the second inclined surface.

[0015] Preferably, lead screw limiting plates are vertically fixed at both ends of the base body perpendicular to the X-axis direction;

[0016] The lead screw limiting plate is provided with a through first elongated hole, the length direction of the first elongated hole is consistent with the Y-axis direction;

[0017] The two ends of the positive and negative threaded rods pass through the corresponding first elongated holes;

[0018] Both ends of the positive and negative threaded screw are fitted with screw fixing rings, and the ends of the positive and negative threaded screw are fixedly provided with hand-tightening nuts to press the screw fixing rings onto the corresponding screw limiting plates.

[0019] Preferably, the Y-axis drive mechanism includes two second adjusting screws extending along the Y-axis direction, and the two side plates of the base body perpendicular to the Y-axis direction are provided with through threaded holes that engage with the second adjusting screws.

[0020] One of the second adjusting screws pushes the third adjusting plate forward, while the other second adjusting screw retracts and pushes the third adjusting plate backward, thus enabling the third adjusting plate to move along the Y-axis.

[0021] Preferably, pre-tightening components are symmetrically arranged on the two side plates of the base body perpendicular to the Y-axis direction;

[0022] The preload assembly includes a compression spring that passes through the base body along the Y-axis and presses against the third adjustment plate; the third adjustment plate is provided with a ball hole, a ball is provided in the ball hole, one end of the compression spring is located in the inner hole of the ball, and the other end of the compression spring is located in the circular hole on the base body, and a set screw for pressing the compression spring is provided in the circular hole of the base body.

[0023] Preferably, a detachable locking mechanism is provided between the upper adjustment component and the lower adjustment component.

[0024] Preferably, the locking mechanism includes four locking screws arranged in a rectangular shape, the locking screws extending along the Z-axis direction, and each locking screw includes a screw body and a screw cap located on the upper part of the screw body;

[0025] The base body is provided with threaded holes that mate with locking screws;

[0026] The first adjustment plate is provided with a mounting hole for the locking screw to pass through completely. The second adjustment plate is provided with a second elongated hole through which the screw body can pass but the screw head cannot pass. The second elongated hole extends along the Y-axis. The height adjustment block and the third adjustment plate are provided with vertically penetrating mounting spaces for the corresponding locking screws.

[0027] Preferably, the Y-axis drive mechanism includes two second adjusting screws extending along the Y-axis direction, and the second adjusting screws are threadedly fitted with threaded bushings and threaded locking rings;

[0028] The base body has through holes on both sides perpendicular to the Y-axis direction, which are fixedly engaged with the threaded bushings.

[0029] One of the second adjusting screws pushes the third adjusting plate forward, while the other second adjusting screw retracts and pushes the third adjusting plate backward, thus enabling the third adjusting plate to move along the Y-axis.

[0030] The beneficial effects of this utility model are:

[0031] (1) This utility model realizes Y-axis adjustment, Z-axis adjustment and pitch adjustment through the overall structural design, thereby realizing multi-degree-of-freedom adjustment; the Z-axis adjustment is realized by the positive and negative threaded rods extending along the X-axis and the second wedge-shaped engagement mechanism. Compared with the existing scheme of realizing Z-axis adjustment by the screw extending along the Z-axis, the space occupied in the Z-axis direction is reduced, thereby making the overall structure smaller and simpler.

[0032] (2) The present invention provides a locking mechanism between the upper adjustment component and the lower adjustment component, which can lock the upper adjustment component and the lower adjustment component after adjustment.

[0033] (3) The present invention is provided with a pre-tightening component, which provides a Y-direction pre-tightening force for pressing the third adjustment plate through compression springs on both sides, making the adjustment operation more reliable.

[0034] (4) This utility model achieves the adjustment of the pitch degree of freedom of the first adjustment plate by using the first adjusting screw extending along the X-axis and the first wedge-shaped fitting mechanism, combined with the first plate spring, the second plate spring and the ear plate. The structure is simple and the operation is convenient. After the adjustment is completed, tightening the plug screw can lock the relative position relationship between the first adjustment plate and the second adjustment plate.

[0035] (5) The threaded bushing and threaded locking ring on the second adjusting screw in this utility model can, on the one hand, tighten the threaded locking ring so that it is pressed against the end of the threaded bushing to achieve single-sided locking; on the other hand, as needed, without changing the structure of the base body, different thread specifications and precision can be adjusted by replacing the second adjusting screw, threaded bushing and threaded locking ring with different thread pairs. Attached Figure Description

[0036] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0037] Figure 1 This is a schematic perspective view of the lockable multi-degree-of-freedom optical path adjustment base in Embodiment 1 of this utility model;

[0038] Figure 2 This is an exploded view of the lockable multi-degree-of-freedom optical path adjustment base in Embodiment 1 of this utility model;

[0039] Figure 3 This is a three-dimensional structural schematic of the upper adjustment component in this utility model. Figure 1 ;

[0040] Figure 4This is a three-dimensional structural schematic of the upper adjustment component in this utility model. Figure 2 ;

[0041] Figure 5 This is a three-dimensional structural schematic of the upper adjustment component in this utility model. Figure 3 ;

[0042] Figure 6 This is a top view illustrating the structure of the upper adjustment component in this utility model;

[0043] Figure 7 yes Figure 6 Sectional view along axis AA;

[0044] Figure 8 This is a three-dimensional schematic diagram of the lower adjustment component of this utility model;

[0045] Figure 9 This is a top view illustrating the structure of the lower adjustment component of this utility model;

[0046] Figure 10 yes Figure 9 BB-direction sectional view;

[0047] Figure 11 This is a perspective view illustrating the cooperation between the lower adjustment component and the second adjustment plate in this utility model.

[0048] Figure 12 This is a top view illustrating the cooperation between the lower adjustment component and the second adjustment plate in this utility model;

[0049] Figure 13 yes Figure 12 CC-direction sectional view;

[0050] Figure 14 This is a schematic diagram of the structure of the base body in this utility model;

[0051] Figure 15 This is a schematic diagram of the structure of the third adjusting plate in this utility model;

[0052] Figure 16 This is a schematic diagram of the structure of the first adjusting plate in this utility model;

[0053] Figure 17 This is an exploded view of the lockable multi-degree-of-freedom optical path adjustment base in Embodiment 2 of this utility model;

[0054] in:

[0055] 1. First adjusting plate; 11. Guide groove; 12. First inclined surface; 13. First leaf spring; 14. Second leaf spring; 15. Ear-hanging plate; 151. Arc-shaped channel; 16. Round head screw; 17. Ear-hanging plate screw; 18. Plug screw; 19. Locking screw; 191. Screw body; 192. Screw cap; 110. Mounting hole; 111. Second elongated hole; 2. Second adjusting plate; 21. Screw connecting plate; 22. Second guide groove; 23. Second inclined surface; 24. Vertical guide mating hole; 3. Third adjusting plate; 31. Third guide block; 32. Y-axis guide groove; 33. Pressure plate; 331. Pressure plate 332. Screw; 34. Vertical guide hole; 4. Guide post; 4. Base body; 41. Lead screw limit plate; 42. First elongated hole; 43. Y-axis guide block; 5. Pitch adjustment block; 51. First mating inclined surface; 6. First adjusting screw; 61. First fixing ring; 62. First set screw; 7. Height adjustment block; 71. Second guide slider; 72. Second mating inclined surface; 73. Third guide groove; 8. Positive and negative thread lead screw; 81. Lead screw fixing ring; 82. Hand-tightening nut; 9. Second adjusting screw; 91. Compression spring; 92. Ball; 93. Set screw; 94. Threaded bushing; 95. Threaded locking ring. Detailed Implementation

[0056] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0057] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0058] In this utility model, terms such as "upper", "lower", "bottom", and "top" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of the structural relationship between the various components or elements of this utility model and do not specifically refer to any component or element in this utility model. They should not be construed as limiting this utility model.

[0059] In this utility model, terms such as "connected" and "linked" should be interpreted broadly, indicating a fixed connection, an integral connection, or a detachable connection; a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this utility model can be determined according to the specific circumstances, and should not be construed as a limitation of this utility model.

[0060] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0061] Example 1:

[0062] like Figures 1 to 16 As shown, a lockable multi-degree-of-freedom optical path adjustment base includes an upper adjustment component and a lower adjustment component. The upper adjustment component includes a first adjustment plate 1 and a second adjustment plate 2 arranged sequentially from top to bottom. The lower adjustment component includes a third adjustment plate 3 and a base body 4 arranged sequentially from top to bottom.

[0063] A pitch adjustment block 5 is sandwiched between one end of the first adjusting plate 1 and the second adjusting plate 2. A first wedge-shaped engagement mechanism is provided between the first adjusting plate 1 and the pitch adjustment block 5. The bottom edge of the pitch adjustment block 5 contacts the top edge of the second adjusting plate 2 and can move along the top surface of the second adjusting plate 2 in the X-axis direction. A first adjusting screw 6 extending in the X-axis direction is rotatably engaged on the second adjusting plate 2. A screw connecting plate 21 is vertically fixed at one end of the second adjusting plate 2. After the first adjusting screw 6 passes through the through hole on the screw connecting plate 21, a first fixing ring is fitted on the first adjusting screw 6. 61. The first fixing ring 61 and the first adjusting screw 6 are fixed together by the first set screw 62, so that the screw connecting plate 21 is clamped between the screw head of the first adjusting screw 6 and the first fixing ring 61, so that the first adjusting screw 6 can only rotate and cannot move along the X-axis. The first adjusting screw 6 is threadedly connected to the pitch adjusting block 5. The first adjusting plate 1 and the second adjusting plate 2 are connected by a connecting assembly that adapts to the pitch adjustment of the first adjusting plate 1 relative to the second adjusting plate 2. The first adjusting plate 1 is provided with a guide groove 11 that adapts to the movement of the pitch adjusting block 5.

[0064] The second adjusting plate 2 and the third adjusting plate 3 are slidably fitted together along the X-axis by two symmetrically arranged height adjusting blocks 7. A second wedge-shaped fitting mechanism is provided between the second adjusting plate 2 and the height adjusting blocks 7. The two height adjusting blocks 7 are threaded with positive and negative threaded rods 8 extending along the X-axis. When the positive and negative threaded rods 8 rotate, they drive the two height adjusting blocks 7 to move synchronously towards each other or synchronously away from each other. Under the action of the first wedge-shaped fitting mechanism, the second adjusting plate 2 drives the first adjusting plate 1 to move along the Z-axis.

[0065] The bottom end of the third adjusting plate 3 is slidably engaged with the base body 4 in the Y-axis direction. The base body 4 is provided with a Y-axis driving mechanism for driving the third adjusting plate 3 to move the second adjusting plate 2 and the first adjusting plate 1 in the Y-axis direction.

[0066] Preferably, the first wedge-shaped mating mechanism includes a first inclined surface 12 disposed at one bottom end of the first adjusting plate 1 and a first mating inclined surface 51 disposed at the top of the pitch adjusting block 5 and adapted to the first inclined surface 12.

[0067] Specifically, the height of the end of the first inclined surface 12 near the screw head of the first adjusting screw 6 is higher than the height of the other end. When the pitch adjusting block 5 moves away from the screw head of the first adjusting screw 6, the engagement of the first mating inclined surface 51 and the first inclined surface 12 causes the end of the first adjusting plate 1 with the first inclined surface 12 to move upward. When the pitch adjusting block 5 moves towards the screw head of the first adjusting screw 6, the engagement of the first mating inclined surface 51 and the first inclined surface 12 causes the end of the first adjusting plate 1 with the first inclined surface 12 to move downward.

[0068] Preferably, the connecting assembly includes a first leaf spring 13, a second leaf spring 14, and an ear-mount plate 15;

[0069] One end of the second adjusting plate 2, which is connected to the first adjusting screw 6, is connected to the first adjusting plate 1 via a first leaf spring 13, and the other end of the second adjusting plate 2 is connected to the first adjusting plate 1 via a second leaf spring 14. The first leaf spring 13 and the second leaf spring 14 are both connected to the first adjusting plate 1 and the second adjusting plate 2 via round-head screws 16. There are two first leaf springs 13 and two second leaf springs 14.

[0070] The second adjusting plate 2 has ear-hanging plates 15 symmetrically arranged on two sides perpendicular to the Y-axis. The ear-hanging plates 15 are connected to the second adjusting plate 2 by ear-hanging plate screws 17. The ear-hanging plates 15 are provided with arc-shaped channels 151 adapted to the pitching movement of the first adjusting plate 1. The first adjusting plate 1 is provided with plug screws 18 inserted into the arc-shaped channels 151.

[0071] When the first adjusting plate 1 is tilted, the deformation of the first leaf spring 13 and the second leaf spring 14 provides stable deformation for the movement space. The ear-mounted plates 15 on both sides restrict the movement of the first adjusting plate 1 along the Y-axis, and the movement of the first adjusting plate 1 along the X-axis is restricted by the movement of the locking screw 18 within the arc-shaped channel 151 on the ear-mounted plate 15, thereby realizing the tilt adjustment of the first adjusting plate 1. After the adjustment is completed, the locking screw 18 is tightened to lock the relative positional relationship between the first adjusting plate 1 and the second adjusting plate 2.

[0072] Specifically, the bottom end of the second adjusting plate 2 is provided with a second guide groove 22 extending along the X-axis direction, the top end of the height adjusting block 7 is provided with a second guide slider 71 that cooperates with the second guide groove 22, the bottom end of the height adjusting block 7 is provided with a third guide groove 73, and the top end of the third adjusting plate 3 is provided with a third guide block 31 that extends along the X-axis direction and cooperates with the third guide groove 73.

[0073] Preferably, the second wedge-shaped mating mechanism includes a second inclined surface 23 disposed at the bottom end of the second adjusting plate 2 and a second mating inclined surface 72 disposed at the top end of the height adjusting block 7 and adapted to the second inclined surface 23.

[0074] Specifically, in each height adjustment block 7, a second mating inclined surface 72 is provided on each side of the second guide slider 71.

[0075] Specifically, in the two height adjustment blocks 7, the lower ends of the second mating inclined surfaces 72 are set facing each other. When the positive and negative threaded rods 8 rotate to drive the two height adjustment blocks 7 to move synchronously towards each other, the second adjustment plate 2 drives the first adjustment plate 1 to move upward along the Z-axis under the action of the second wedge-shaped mating mechanism. When the positive and negative threaded rods 8 rotate to drive the two height adjustment blocks 7 to move synchronously away from each other, the second adjustment plate 2 drives the first adjustment plate 1 to move downward along the Z-axis under the action of the second wedge-shaped mating mechanism.

[0076] Specifically, pressure plates 33 are symmetrically fixed at both ends of the third adjusting plate 3 perpendicular to the Y-axis direction. The pressure plates 33 extend along the X-axis direction and are fixedly connected to the third adjusting plate 3 by pressure plate screws 331. The pressure plates 33 are provided with vertical guide holes 332. The second adjusting plate 2 is provided with vertical guide mating holes 24 corresponding to the vertical guide holes 332. Guide posts 34 are provided in the corresponding vertical guide holes 332 and vertical guide mating holes 24 to guide the second adjusting plate 2 during the Z-axis movement.

[0077] Preferably, the base body 4 is vertically fixed with screw limiting plates 41 at both ends perpendicular to the X-axis direction;

[0078] The lead screw limiting plate 41 is provided with a through first elongated hole 42, the length direction of the first elongated hole 42 is consistent with the Y-axis direction.

[0079] The two ends of the positive and negative threaded rods 8 pass through the corresponding first elongated holes 42;

[0080] Both ends of the positive and negative threaded screw 8 are fitted with screw fixing rings 81, and the ends of the positive and negative threaded screw 8 are fixedly provided with hand-tightening nuts 82 for pressing the screw fixing rings 81 onto the corresponding screw limiting plates 41.

[0081] The screw fixing rings 81 and hand-tightening nuts 82 at both ends of the positive and negative threaded screws 8 restrict the movement of the positive and negative threaded screws 8 in the X-axis direction, so that they can only move in the Y-axis direction along the first elongated hole 42 and rotate around their own central axis.

[0082] Preferably, the Y-axis drive mechanism includes two second adjusting screws 9 extending along the Y-axis direction, and the two side plates of the base body 4 perpendicular to the Y-axis direction are provided with threaded holes that are threaded to engage with the second adjusting screws 9.

[0083] One of the second adjusting screws 9 pushes the third adjusting plate 3 while the other second adjusting screw 9 moves back to push the third adjusting plate 3, thus moving the third adjusting plate 3 along the Y-axis.

[0084] Preferably, pre-tightening components are symmetrically arranged on the two side plates of the base body 4 perpendicular to the Y-axis direction;

[0085] The pre-tightening assembly includes a compression spring 91 that passes through the base body 4 along the Y-axis and presses against the third adjusting plate 3; the third adjusting plate 3 is provided with a ball hole, a ball 92 is provided in the ball hole, the ball 92 is provided with an inner hole to accommodate the compression spring 91, one end of the inner hole is closed, one end of the compression spring 91 is located in the inner hole of the ball 92, and the other end of the compression spring 91 is located in a circular hole on the base body 4, and a set screw 93 for pressing the compression spring 91 is provided in the circular hole of the base body 4.

[0086] The compression springs 91 on both sides provide a Y-direction preload to press the third adjusting plate 3.

[0087] Specifically, the base body 4 is provided with a Y-axis guide block 43, and the third adjustment plate 3 is provided with a Y-axis guide groove 32 that slides in the Y-axis direction with the Y-axis guide block 43.

[0088] Preferably, a detachable locking mechanism is provided between the upper adjustment component and the lower adjustment component.

[0089] Preferably, the locking mechanism includes four locking screws 19 arranged in a rectangular shape, the locking screws 19 extending along the Z-axis direction, and each locking screw 19 includes a screw body 191 and a screw cap 192 located on the upper part of the screw body 191.

[0090] The base body 4 is provided with a threaded hole that mates with the locking screw 19;

[0091] The first adjusting plate 1 is provided with a mounting hole 110 for the locking screw 19 to pass through completely. The diameter of the mounting hole 110 is larger than the diameter of the screw cap 192 to accommodate the positional changes caused by the Y-axis movement and pitch movement of the first adjusting plate 1. The second adjusting plate 2 is provided with a second elongated hole 111 through which the screw body 191 can pass but the screw cap 192 cannot pass. The second elongated hole 111 extends along the Y-axis. The height adjusting block 7 and the third adjusting plate 3 are provided with vertically penetrating mounting spaces at the positions corresponding to the locking screw 19 to accommodate the installation of the locking screw 19.

[0092] In this application, in the upper adjustment assembly, the first adjustment plate 1 and the second adjustment plate 2 are connected by components such as the second leaf spring 14 and the first leaf spring 13; in the lower adjustment assembly, the third adjustment plate 3, the base body 4, and the height adjustment block 7 are connected by inserting both ends of the positive and negative threaded rods 8 into the first elongated hole 42 in the base body 4. After the upper and lower adjustment assemblies are assembled, the four locking screws 19 are inserted into the corresponding mounting holes 110, the second elongated hole 111, and the corresponding threaded holes of the mounting space threaded engagement base body 4. At this time, the locking screws 19 are not tightened to facilitate adjustment.

[0093] After adjustment, tighten the locking screw 19 so that the screw cap 192 presses against the top of the second adjustment plate 2, thereby locking the upper adjustment assembly and the lower adjustment assembly.

[0094] In Example 1, the specific implementation of the lockable multi-degree-of-freedom optical path adjustment base is as follows:

[0095] When using the base of this application, various optical path components such as the laser head are mounted on the first adjustment plate 1, and the adjustment method is as follows:

[0096] First, adjust along the Y-axis: one of the second adjusting screws 9 pushes the third adjusting plate 3, and the other second adjusting screw 9 moves back to push the third adjusting plate 3, so that the third adjusting plate 3 drives all its components to move along the Y-axis.

[0097] Secondly, adjustment is made along the Z-axis: when the positive and negative threaded screws 8 rotate and drive the two height adjustment blocks 7 to move synchronously towards each other, the second adjustment plate 2, under the action of the second wedge-shaped engagement mechanism, drives all its components to move upward along the Z-axis; when the positive and negative threaded screws 8 rotate and drive the two height adjustment blocks 7 to move synchronously away from each other, the second adjustment plate 2, under the action of the second wedge-shaped engagement mechanism, drives all its components to move downward along the Z-axis.

[0098] Finally, pitch adjustment is performed: by rotating the first adjusting screw 6, the pitch adjusting block 5 moves along the X-axis, and under the action of the first wedge-shaped engagement mechanism, one end of the first adjusting plate 1 moves up or down; when the first adjusting plate 1 is pitched, the deformation of the first leaf spring 13 and the second leaf spring 14 provides stable deformation for the movement space, the ear plates 15 on both sides restrict the movement of the first adjusting plate 1 along the Y-axis, and the movement of the locking screw 18 in the arc-shaped channel 151 on the ear plate 15 restricts the movement of the first adjusting plate 1 along the X-axis, thereby realizing the pitch adjustment of the first adjusting plate 1; after the adjustment is completed, tighten the locking screw 18 to lock the relative positional relationship between the first adjusting plate 1 and the second adjusting plate 2.

[0099] After adjustment, tighten the locking screw 19 so that the screw cap 192 presses against the top of the second adjustment plate 2, thereby locking the upper adjustment assembly and the lower adjustment assembly.

[0100] Example 2:

[0101] Unlike in Example 1, as Figure 17 As shown, the Y-axis drive mechanism includes two second adjusting screws 9 extending along the Y-axis direction. The second adjusting screws 9 are threadedly fitted with threaded bushings 94 and threaded locking rings 95. The threaded locking rings 95 are located between the threaded bushings 94 and the screw heads of the second adjusting screws 9.

[0102] The base body 4 has through holes on both sides perpendicular to the Y-axis direction, which are fixedly engaged with the threaded bushing 94.

[0103] One of the second adjusting screws 9 pushes the third adjusting plate 3 while the other second adjusting screw 9 moves back to push the third adjusting plate 3, thus moving the third adjusting plate 3 along the Y-axis.

[0104] In Example 2, the threaded bushing 94 is pressed into the corresponding through hole of the base body 4 to achieve a fixed connection. After the second adjusting screw 9 is tightened and the third adjusting plate 3 is adjusted, the threaded locking ring 95 is tightened to press it against the end of the threaded bushing 94 to achieve unilateral locking.

[0105] The solution in Example 2 allows for adjustments to different thread specifications and precisions without altering the structure of the base body 4, by replacing the second adjusting screw 9, threaded bushing 94, and threaded locking ring 95 with different thread pairs.

[0106] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, they are not intended to limit the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the protection scope of the present utility model.

Claims

1. A lockable multi-degree-of-freedom optical path adjustment base, characterized in that, It includes an upper adjustment component and a lower adjustment component. The upper adjustment component includes a first adjustment plate and a second adjustment plate arranged sequentially from top to bottom. The lower adjustment component includes a third adjustment plate and a base body arranged sequentially from top to bottom. A pitch adjustment block is sandwiched between one end of the first adjustment plate and the second adjustment plate. A first wedge-shaped engagement mechanism is provided between the first adjustment plate and the pitch adjustment block. A first adjustment screw extending along the X-axis direction is rotatably engaged on the second adjustment plate. The first adjustment screw is threadedly connected to the pitch adjustment block. The first adjustment plate and the second adjustment plate are connected by a connecting assembly that adapts to the pitch adjustment of the first adjustment plate relative to the second adjustment plate. The second and third adjusting plates are slidably fitted with two symmetrically arranged height adjusting blocks along the X-axis. A second wedge-shaped fitting mechanism is provided between the second adjusting plate and the height adjusting blocks. The two height adjusting blocks are threaded with positive and negative threaded rods extending along the X-axis. When the positive and negative threaded rods rotate, they drive the two height adjusting blocks to move synchronously towards each other or synchronously away from each other. Under the action of the first wedge-shaped fitting mechanism, the second adjusting plate drives the first adjusting plate to move along the Z-axis. The bottom end of the third adjustment plate is slidably engaged with the base body in the Y-axis direction. The base body is provided with a Y-axis drive mechanism for driving the third adjustment plate to move the second and first adjustment plates in the Y-axis direction.

2. The lockable multi-degree-of-freedom optical path adjustment base as described in claim 1, characterized in that, The first wedge-shaped mating mechanism includes a first inclined surface disposed at one end of the bottom of the first adjusting plate and a first mating inclined surface disposed at the top of the pitch adjusting block and adapted to the first inclined surface.

3. The lockable multi-degree-of-freedom optical path adjustment base as described in claim 1, characterized in that, The connecting assembly includes a first leaf spring, a second leaf spring, and an ear-mount plate; One end of the second adjusting plate, which is connected to the first adjusting screw, is connected to the first adjusting plate via a first leaf spring, and the other end of the second adjusting plate is connected to the first adjusting plate via a second leaf spring. The second adjusting plate has ear-hanging plates symmetrically arranged on two sides perpendicular to the Y-axis. The ear-hanging plates are provided with arc-shaped channels adapted to the pitch movement of the first adjusting plate. The first adjusting plate is provided with plug screws that are inserted into the arc-shaped channels.

4. The lockable multi-degree-of-freedom optical path adjustment base as described in claim 1, characterized in that, The second wedge-shaped fitting mechanism includes a second inclined surface disposed at the bottom end of the second adjusting plate and a second fitting inclined surface disposed at the top end of the height adjusting block and adapted to the second inclined surface.

5. The lockable multi-degree-of-freedom optical path adjustment base as described in claim 1, characterized in that, The base body is vertically fixed with lead screw limiting plates at both ends perpendicular to the X-axis direction; The lead screw limiting plate is provided with a through first elongated hole, the length direction of the first elongated hole is consistent with the Y-axis direction; The two ends of the positive and negative threaded rods pass through the corresponding first elongated holes; Both ends of the positive and negative threaded screw are fitted with screw fixing rings, and the ends of the positive and negative threaded screw are fixedly provided with hand-tightening nuts to press the screw fixing rings onto the corresponding screw limiting plates.

6. The lockable multi-degree-of-freedom optical path adjustment base as described in claim 1, characterized in that, The Y-axis drive mechanism includes two second adjusting screws extending along the Y-axis direction. The base body has threaded holes on both side plates perpendicular to the Y-axis direction that are threaded together with the second adjusting screws. One of the second adjusting screws pushes the third adjusting plate forward, while the other second adjusting screw retracts and pushes the third adjusting plate backward, thus enabling the third adjusting plate to move along the Y-axis.

7. The lockable multi-degree-of-freedom optical path adjustment base as described in claim 1, characterized in that, Pre-tightening components are symmetrically arranged on the two side plates of the base body perpendicular to the Y-axis direction; The preload assembly includes a compression spring that passes through the base body along the Y-axis and presses against the third adjustment plate; the third adjustment plate is provided with a ball hole, a ball is provided in the ball hole, one end of the compression spring is located in the inner hole of the ball, and the other end of the compression spring is located in the circular hole on the base body, and a set screw for pressing the compression spring is provided in the circular hole of the base body.

8. The lockable multi-degree-of-freedom optical path adjustment base as described in claim 1, characterized in that, A detachable locking mechanism is provided between the upper adjustment component and the lower adjustment component.

9. The lockable multi-degree-of-freedom optical path adjustment base as described in claim 8, characterized in that, The locking mechanism includes four locking screws arranged in a rectangular pattern. The locking screws extend along the Z-axis direction and include a screw body and a screw cap located on the upper part of the screw body. The base body is provided with threaded holes that mate with locking screws; The first adjustment plate is provided with a mounting hole for the locking screw to pass through completely. The second adjustment plate is provided with a second elongated hole through which the screw body can pass but the screw head cannot pass. The second elongated hole extends along the Y-axis. The height adjustment block and the third adjustment plate are provided with vertically penetrating mounting spaces for the corresponding locking screws.

10. The lockable multi-degree-of-freedom optical path adjustment base as described in claim 1, characterized in that, The Y-axis drive mechanism includes two second adjusting screws extending along the Y-axis direction, and the second adjusting screws are threadedly fitted with threaded bushings and threaded locking rings. The base body has through holes on both sides perpendicular to the Y-axis direction, which are fixedly engaged with the threaded bushings. One of the second adjusting screws pushes the third adjusting plate forward, while the other second adjusting screw retracts and pushes the third adjusting plate backward, thus enabling the third adjusting plate to move along the Y-axis.

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