A multi-dimension optical adjusting frame device with high bearing capacity

Abstract

This invention discloses a high-load-bearing multi-dimensional optical adjustment frame device, comprising an adjustment frame consisting of an out-of-plane translation module, a pitch module, a tilt module, and an in-plane translation module stacked from top to bottom along the X-axis. These modules are used to realize the translation of optical devices along the X-axis, rotation around the X-axis, pitch around the Y-axis, tilt around the Z-axis, and translation along the Y-axis, respectively. Each module is equipped with an adjustment component and a locking component, and the force direction of the adjustment component is perpendicular to the force direction of the locking component. The out-of-plane translation module is equipped with a tensioning mechanism with a first guide structure, and the in-plane translation module is equipped with a second guide structure. The device also includes a spring system, including a central tension spring passing through the center of the adjustment frame and several peripheral tension springs arranged near the adjustment components, with the peripheral tension springs connected in parallel with the central tension spring. This invention has the beneficial effects of a large adjustment range, high positioning accuracy, strong locking stability, and wide load adaptability.

Description

Technical Field

[0001] This invention belongs to the field of optical device technology and relates to a high-load-bearing multi-dimensional optical adjustment frame device. Background Technology

[0002] Optical components require high spatial positioning accuracy, and assembly and manufacturing inevitably introduce errors. Therefore, multi-dimensional optical adjustment frames are needed. Commonly used optical adjustment frames include: lead screw and gear type adjustment frames, three vertically distributed set screws and spring type adjustment frames, prefabricated stacked type adjustment frames, and single-plate type adjustment frames based on flexible structures, etc.

[0003] As the precision requirements of optical systems become increasingly stringent, the weight of integrated optical components, such as interferometers and acousto-optic modulators, also increases. Consequently, when pursuing multi-degree-of-freedom adjustment, a fundamental contradiction generally exists: it is difficult to simultaneously achieve motion decoupling, wide-range adjustment, and high-precision stable positioning.

[0004] Specifically, while the lead screw and gear structure offers a certain adjustment range, its transmission chain is complex, with severe coupling between degrees of freedom (poor decoupling), and backlash leads to low positioning accuracy and insufficient stability. The three-point set screw structure is simple, but its adjustment range and accuracy are limited, and its load-bearing capacity is weak, making it difficult to meet the requirements of heavy or high-precision components. The prefabricated stacked structure achieves multiple degrees of freedom by connecting standard parts in series, but this results in a bulky structure, error accumulation, and a decrease in series stiffness, exhibiting defects in decoupling, accuracy, and compactness. Although the flexible hinge structure is frictionless and has good decoupling, its adjustment range is extremely small, and its load-bearing capacity and long-term stability are insufficient.

[0005] Therefore, existing technologies have consistently failed to effectively address the interconnected core systemic problem of "poor decoupling of adjustable degrees of freedom, small adjustment range, and low adjustment accuracy." This contradiction is particularly pronounced when handling modern heavy, high-value optical components.

[0006] In summary, the core technical problem of the existing technology is that the decoupling between the adjustable degrees of freedom of the optical adjustment frame is poor, which makes it easy to trigger parasitic motion in other dimensions when adjusting one dimension; at the same time, due to the limitations of the mechanical structure, it is difficult to obtain a sufficiently large linear and rotational adjustment range while ensuring high precision and high stability. Summary of the Invention

[0007] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a high-load-bearing multi-dimensional optical adjustment frame device. This addresses the technical problems mentioned in the background section, such as poor decoupling between the adjustable degrees of freedom of existing optical adjustment frames, which easily leads to parasitic motion in other dimensions when adjusting one dimension; and the difficulty in obtaining a sufficiently large linear and rotational adjustment range while ensuring high precision and high stability due to mechanical structure limitations.

[0008] The objective of this invention can be achieved through the following technical solutions:

[0009] A high-load-bearing multi-dimensional optical adjustment frame device, comprising:

[0010] The adjustment frame consists of an out-of-plane translation module for supporting optical devices, a pitch module for rotating about the Y-axis, a tilt module for rotating about the Z-axis, and an in-plane translation module, which are stacked from top to bottom along the X-axis.

[0011] Each module is equipped with an adjustment component and a locking component, and the force direction of the adjustment component is perpendicular to the force direction of the locking component.

[0012] The out-of-plane translation module includes a tensioning mechanism for supporting and fixing optical devices, and the tensioning mechanism is provided with a first guide structure for realizing the translation of the optical devices along the X-axis direction;

[0013] The in-plane translation module includes a second guide structure for realizing the translation of the optical device along the Y-axis direction;

[0014] The spring system includes a central tension spring passing through the center of the adjustment frame and several peripheral tension springs arranged near the adjustment component, wherein the peripheral tension springs are arranged in parallel with the central tension spring.

[0015] The design achieves decoupling of degrees of freedom through a stacked architecture and independent guide structure; the vertical arrangement of adjustment and locking components ensures stable accuracy; the parallel spring system provides uniform reset force, eliminates gaps, and makes fine adjustment smooth and precise; the stacked structure and adaptive spring system together ensure a large adjustment stroke and a wide load adaptability range.

[0016] Furthermore, the out-of-plane translation module also includes a first mounting base, and the tensioning mechanism includes two sets of locking components symmetrically mounted on the first mounting base. Each set of locking components includes two L-shaped blocks, a first locking block, and two screw shafts. The first locking block serves as the first locking component of the out-of-plane translation module.

[0017] Two L-shaped blocks are slidably disposed on the first mounting base in opposite directions. Four insert blocks are fixed on the first mounting base. One end of the screw shaft passes through the L-shaped block and is threaded to the corresponding insert block. The first locking block is disposed between the corresponding L-shaped block and the insert block. The first locking block has a screw shaft guide hole for the screw shaft to pass through. The screw shaft guide hole constitutes the first guide structure.

[0018] The L-shaped block is provided with a sliding pin groove, and the first mounting base is fixed with a sliding pin that cooperates with the sliding pin groove;

[0019] The first adjustment component of the out-of-plane translation module includes two symmetrically arranged mounting plates. The mounting plates are used to connect with the optical device. A first adjustment screw is provided on the mounting plate, and the end of the first adjustment screw abuts against the top of the first mounting base.

[0020] Furthermore, the pitch module includes a second mounting base and a guide cylinder, with the guide cylinder fixed to the top of the second mounting base;

[0021] The bottom of the first mounting base has a circular hole that mates with the guide cylinder, so that the first mounting base can rotate around the axis of the guide cylinder.

[0022] The second adjustment component of the out-of-plane translation module includes two L-shaped mounting blocks and two adjustment ears. The two adjustment ears are symmetrically arranged at one end of the corresponding first mounting base. The two mounting blocks are fixed on the corresponding second mounting base. The mounting blocks are provided with second adjustment screws, and one end of the second adjustment screw abuts against one end of the corresponding adjustment ear.

[0023] The second locking component of the out-of-plane translation module includes several locking lugs disposed on the second mounting base. The first mounting base has several rotating holes and several tightening bolts are installed on the first mounting base. One end of each tightening bolt passes through the corresponding rotating hole and is threadedly connected to the second mounting base.

[0024] Furthermore, the tilting module includes a third mounting base, the lower end of the second mounting base is provided with two symmetrically arranged first cylindrical contact portions, and the top of the third mounting base is provided with a first V-shaped groove for embedding into the corresponding first cylindrical contact portion.

[0025] Furthermore, the pitch module adjustment component includes a third adjustment screw, which is mounted on a first protrusion at one end of the second mounting base, and the end of the third adjustment screw abuts against a first stop block disposed on the third mounting base;

[0026] The locking component of the pitch module includes a plurality of first locking bolts. The first locking bolts pass through a second locking block disposed on the third mounting base and are threadedly connected to a first guide block fixed on the second mounting base. The second locking block has a first adjustment hole through which one end of the first locking bolt passes.

[0027] Furthermore, the in-plane translation module includes a fourth mounting base and a fifth mounting base. The fourth mounting base is slidably mounted on the fifth mounting base. The bottom of the third mounting base is provided with two symmetrically arranged second cylindrical contact portions. The top of the fourth mounting base is provided with a second V-shaped groove for the corresponding second cylindrical contact portions to be embedded.

[0028] Furthermore, the adjustment component of the tilting module includes a fourth adjustment screw, which is mounted on a second protrusion at one end of the third mounting base, and the end of the fourth adjustment screw abuts against a second stop provided on the fourth mounting base;

[0029] The locking component of the tilting module includes several second locking bolts. The second locking bolts pass through the second guide block disposed on the fourth mounting base and are threadedly connected to the third mounting base or the fourth mounting base. The second guide block has two second adjustment holes, and one end of the second locking bolt passes through the corresponding second adjustment hole.

[0030] Furthermore, the adjustment component of the in-plane translation module includes two third protrusions, which are symmetrically fixed on the fifth mounting base. A fifth adjusting screw is installed on the third protrusion, and the fifth adjusting screw passes through one end of the third protrusion and abuts against the side wall of the fourth mounting base.

[0031] The locking component of the in-plane translation module includes several third locking bolts. The third locking bolts pass through the third adjustment hole on the fourth mounting base and are threadedly connected to the fifth mounting base. The third adjustment hole constitutes the second guide structure.

[0032] Furthermore, the central tension spring is housed in a first mounting hole that penetrates the center of each module. The first mounting base has a placement hole that connects to the circular hole and extends to the position corresponding to the guide cylinder.

[0033] The central tension spring is connected to a central connecting rod at both ends, one of which is embedded in the corresponding placement hole. The bottom of the fifth mounting base has a placement groove, which is connected to the first mounting hole. The two ends of the central tension spring abut against the top of the second mounting base and the inner wall of the placement groove respectively through the central connecting rod.

[0034] The peripheral tension springs are respectively housed in the second mounting hole between the second mounting base and the third mounting base, and in the third mounting hole between the third mounting base and the fourth mounting base. The two ends of the peripheral tension springs abut against the corresponding mounting bases through adjusting rods.

[0035] Furthermore, the contact surfaces of the first guide block and the second locking block form a Y-guide surface in the Y-axis direction, and the contact surface between the second guide block and the third mounting base forms a Z-guide surface in the Z-axis direction.

[0036] The main technical effects of this invention are reflected in the following aspects:

[0037] 1. Achieving unified adjustment with a wide range and high precision: This invention effectively resolves the contradiction between adjustment range and precision through a layered layout of degrees of freedom and a decoupled guiding design. Each degree of freedom is independently stacked along the direction of gravity, and each module is equipped with a dedicated guiding structure (such as screw shaft guide holes, cylindrical-V-grooves, etc.), making the adjustment movement of each degree of freedom highly independent with minimal mutual interference. This allows each module to achieve a wide range of adjustments within its mechanical stroke. The separation design of adjustment and locking, as well as the precision adjustable clearance guiding mechanism, enable high-precision positioning at the sub-micron or arcsecond level through fine-tuning screws after selecting the working point, and stable holding by the vertically applied locking component, effectively eliminating backlash. In particular, the design of the independent guiding parts with adjustable clearance not only reduces assembly difficulty but also maximizes the decoupling of degrees of freedom through precise zeroing. The coupling between modules is low, and each module has strong independence. Adjusting one module has little impact on other modules, ensuring the final positioning accuracy under large stroke.

[0038] 2. Compact structure, high rigidity, and reliable locking: To achieve the above-mentioned precision adjustment function, the present invention adopts a highly integrated integrated design, which integrates the functions of the dynamic adjustment module and the adjacent fixed module, significantly reducing the number of parts and assembly interface, so that the overall structure remains compact while having six degrees of freedom.

[0039] Dual composite locking mechanism: The force applied by the locking component perpendicular to the adjustment direction is combined with the surface contact locking force after the guide gap is zeroed. The two mechanisms work together to provide sufficient locking stiffness for each degree of freedom, so that after the adjustment frame completes the precise positioning, it can resist strong impacts, vibrations and environmental disturbances, and has excellent long-term stability. It is especially suitable for carrying valuable optical components in dynamic or harsh environments, ensuring the long-term stability of the optical components' position and posture.

[0040] 3. Wide applicability and user-friendly operation: The optimized spring system of this invention (i.e., the central tension spring and the peripheral tension spring in parallel) provides an adaptable bidirectional adjustment force for optical devices of different weights, making the operation feel uniform. It is suitable for optical components ranging from light to heavy weights. The clear stacking sequence of degrees of freedom and the decoupled motion relationship make the adjustment logic intuitive, reducing the operator's debugging difficulty and time, and significantly reducing the difficulty and cost of high-precision machining and assembly. All adjustment and locking mechanisms are reasonably laid out, which facilitates tool operation, improves the convenience of use, and significantly shortens the assembly and adjustment time of the optical system. Attached Figure Description

[0041] Figure 1 This is a structural schematic diagram of an embodiment of the present invention;

[0042] Figure 2 This is a schematic diagram of the structure of the adjustment frame according to an embodiment of the present invention;

[0043] Figure 3 This is a schematic diagram of the exploded structure according to an embodiment of the present invention;

[0044] Figure 4 This is a schematic diagram of the structure of the first mounting base according to an embodiment of the present invention;

[0045] Figure 5 This is an assembly diagram of the second and third mounting bases according to an embodiment of the present invention;

[0046] Figure 6 This is a schematic diagram of the structure of the second mounting base according to an embodiment of the present invention. Figure 1 ;

[0047] Figure 7 This is a schematic diagram of the structure of the second mounting base according to an embodiment of the present invention. Figure 2 ;

[0048] Figure 8 This is a schematic diagram of the structure of the third mounting base according to an embodiment of the present invention. Figure 1 ;

[0049] Figure 9 This is an assembly diagram of the third and fourth mounting bases according to an embodiment of the present invention;

[0050] Figure 10 This is a schematic diagram of the structure of the third mounting base according to an embodiment of the present invention. Figure 2 ;

[0051] Figure 11 This is a schematic diagram of the structure of the fourth mounting base according to an embodiment of the present invention. Figure 1 ;

[0052] Figure 12 This is an assembly diagram of the fourth and fifth mounting bases according to an embodiment of the present invention;

[0053] Figure 13 This is a schematic diagram of the structure of the fourth mounting base according to an embodiment of the present invention. Figure 2 ;

[0054] Figure 14 This is a cross-sectional view of an embodiment of the present invention. Figure 1 ;

[0055] Figure 15 This is a cross-sectional view of an embodiment of the present invention. Figure 2 ;

[0056] Figure 16 This is an embodiment of the present invention. Figure 15 Enlarged view of point A in the middle;

[0057] Figure 17 This is a schematic diagram of the structure of the fifth mounting base according to an embodiment of the present invention.

[0058] Explanation of reference numerals in the attached drawings: 1. Adjusting bracket; 11. Central tension spring; 111. Central connecting rod; 12. Peripheral tension spring; 121. Adjusting rod; 13. First mounting hole;

[0059] 2. First mounting base; 21. L-shaped block; 211. Sliding pin groove; 22. First locking block; 221. Screw shaft guide hole; 23. Screw shaft; 24. Insert block; 25. Sliding pin; 26. Mounting plate; 261. First adjusting screw; 27. Round hole; 28. Adjusting lug; 29. ​​Rotary hole; 291. Tightening bolt;

[0060] 3. Second mounting base; 31. Guide cylinder; 32. Mounting block; 321. Second adjusting screw; 33. Locking lug; 34. First cylindrical contact part; 35. First protrusion; 351. Third adjusting screw; 36. First guide block; 37. Second mounting hole;

[0061] 4. Third mounting base; 41. First V-groove; 42. First stop block; 43. Second locking block; 431. First adjusting hole; 44. First locking bolt; 45. Third mounting hole; 46. Second cylindrical contact part; 47. Second protrusion; 471. Fourth adjusting screw;

[0062] 5. Fourth mounting base; 51. Second V-groove; 52. Second stop block; 53. Second guide block; 531. Second locking bolt; 532. Second adjusting hole; 54. Third adjusting hole; 541. Third locking bolt;

[0063] 6. Fifth mounting base; 61. Third protrusion; 611. Fifth adjusting screw; 62. Placement hole; 63. Placement groove. Detailed Implementation

[0064] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0065] like Figure 1-3 As shown in Figures 14-17, a high-load-bearing multi-dimensional optical adjustment frame device includes: an adjustment frame 1, which is composed of an out-of-plane translation module for carrying optical devices and rotatable around the X-axis, a pitch module for rotating around the Y-axis, a tilt module for rotating around the Z-axis, and an in-plane translation module stacked from top to bottom along the X-axis.

[0066] Each module is equipped with an adjustment component and a locking component, and the force direction of the adjustment component is perpendicular to the force direction of the locking component.

[0067] The out-of-plane translation module includes a tensioning mechanism for supporting and fixing optical devices, and the tensioning mechanism is provided with a first guide structure for realizing the translation of the optical devices along the X-axis direction;

[0068] The in-plane translation module includes a second guide structure for realizing the translation of the optical device along the Y-axis direction;

[0069] The spring system includes a central tension spring 11 passing through the center of the adjustment frame 1 and a plurality of peripheral tension springs 12 arranged near the adjustment component, wherein the plurality of peripheral tension springs 12 are arranged in parallel with the central tension spring 11.

[0070] The top-down stacked architecture makes each degree of freedom module relatively independent in physical space and motion link. This arrangement isolates the mechanical motion path of each degree of freedom from the source. With the independent "first guide structure" or "second guide structure" of each module, it ensures that the adjustment force and motion are strictly limited to the axis of this degree of freedom, which greatly reduces the coupling between degrees of freedom.

[0071] The force directions of the adjusting and locking components are perpendicular to each other, so that the precise adjusting action and the high-rigidity locking action do not interfere with each other mechanically. This avoids displacement deviation introduced by the locking process and ensures accurate reproduction and maintenance of the posture after fine adjustment.

[0072] The parallel spring system at the center and periphery provides uniform and predictable reset force for adjustment, eliminates transmission backlash, makes bidirectional fine adjustment smooth and precise, and further improves adjustment resolution and repeatability.

[0073] The stacked structure provides complete mechanical travel space for each module, enabling each degree of freedom to achieve independent, wide-range adjustment without interference from other modules. The parallel spring system is designed to adapt to different loads, providing appropriate preload for optical devices ranging from light to heavy, thereby significantly expanding the load adaptability and adjustment stroke of the adjustment frame 1 while ensuring high precision and decoupling.

[0074] like Figure 3-8 As shown in Figure 17, the out-of-plane translation module also includes a first mounting base 2. The tensioning mechanism includes two sets of locking components symmetrically mounted on the first mounting base 2. Each set of locking components includes two L-shaped blocks 21, a first locking block 22, and two screw shafts 23. The first locking block 22 serves as the first locking component of the out-of-plane translation module.

[0075] Two L-shaped blocks 21 are slidably disposed on the first mounting base 2 and slide in opposite directions. Four insert blocks 24 are fixed on the first mounting base 2. One end of the screw shaft 23 passes through the L-shaped block 21 and is threaded to the corresponding insert block 24. The first locking block 22 is disposed between the corresponding L-shaped block 21 and the insert block 24. The first locking block 22 has a screw shaft guide hole 221 for the screw shaft 23 to pass through. The screw shaft guide hole 221 constitutes the first guide structure.

[0076] The L-shaped block 21 is provided with a sliding pin groove 211, and the first mounting base 2 is fixed with a sliding pin 25 that cooperates with the sliding pin groove 211.

[0077] The first adjustment component of the out-of-plane translation module includes two symmetrically arranged mounting plates 26. The mounting plates 26 are used to connect with the optical device. The mounting plates 26 are provided with first adjusting screws 261, the ends of which abut against the top of the first mounting base 2. By rotating the two first adjusting screws 261, the optical device can be translated along the X-axis.

[0078] The four-sided tensioning mechanism, consisting of "L-shaped block 21, sliding pin 25, screw shaft 23, and first locking block 22," effectively eliminates clearance and generates uniform constraint force while achieving translational guidance in the X-axis direction. This not only improves the linearity of adjustment (increasing controllability) but also, during locking (via the first locking block 22), works in conjunction with the tensioning force to create a powerful double locking effect, significantly enhancing the module's impact resistance after locking.

[0079] The pitch module includes a second mounting base 3 and a guide cylinder 31, with the guide cylinder 31 fixed to the top of the second mounting base 3;

[0080] The bottom of the first mounting base 2 is provided with a circular hole 27 that mates with the guide cylinder 31, so that the first mounting base 2 can rotate around the axis of the guide cylinder 31; the guide cylinder 31 and the circular hole 27 mate to form a precise rotary guide pair.

[0081] The second adjustment component of the out-of-plane translation module includes two L-shaped mounting blocks 32 and two adjustment ears 28. The two adjustment ears 28 are symmetrically arranged at one end corresponding to the first mounting base 2. The two mounting blocks 32 are fixed on the corresponding second mounting base 3. The mounting blocks 32 are provided with a second adjustment screw 321. One end of the second adjustment screw 321 abuts against one end of the corresponding adjustment ear 28. By rotating the second adjustment screw 321, the first mounting base 2 can be adjusted to rotate around the cylinder.

[0082] The second locking component of the out-of-plane translation module includes a plurality of locking lugs 33 disposed on the second mounting base 3. The first mounting base 2 has a plurality of rotating holes 29 and a plurality of tightening bolts 291 are installed on the first mounting base 2. One end of the tightening bolt 291 passes through the corresponding rotating hole 29 and is threadedly connected to the second mounting base 3.

[0083] The "second adjusting screw 321" and the "fixing bolt" serve as adjusting and locking components, respectively. Their directions of action satisfy the principle of "mutually perpendicular", ensuring adjustment accuracy and locking reliability, and avoiding rotation caused by locking.

[0084] like Figure 9-12 As shown, the tilting module includes a third mounting base 4, and the lower end of the second mounting base 3 is provided with two symmetrically arranged first cylindrical contact parts 34. The top of the third mounting base 4 is provided with a first V-shaped groove 41 for the corresponding first cylindrical contact parts 34 to be inserted, forming a three-point contact.

[0085] The pitch module adjustment component includes a third adjustment screw 351, which is mounted on a first protrusion 35 at one end of the second mounting base 3, and the end of the third adjustment screw 351 abuts against a first stop 42 provided on the third mounting base 4.

[0086] The locking component of the pitch module includes a plurality of first locking bolts 44. The first locking bolts 44 pass through the second locking block 43 disposed on the third mounting base 4 and are threadedly connected to the first guide block 36 fixed on the second mounting base 3. The second locking block 43 has a first adjusting hole 431 through which one end of the first locking bolt 44 passes.

[0087] The second mounting base 3 is fixed with four first guide blocks 36 arranged in a rectangular shape, and the third mounting base 4 is fixed with four second locking blocks 43 arranged in a rectangular shape.

[0088] The first cylindrical contact portion 34 and the first V-groove 41 cooperate to achieve three-point contact, while providing rotational guidance and stable support, improving the degree of freedom decoupling; the action direction of the "third adjusting screw 351" is perpendicular to that of the "first locking bolt 44", which conforms to the principle of adjustment and locking separation; through the independent guiding / locking component composed of the "first guide block 36" and the "second locking block 43", the contact surfaces of the first guide block 36 and the second locking block 43 form a Y-guide surface in the Y-axis direction, and the gap between their contact surfaces is adjustable, which reduces the assembly difficulty, and after the gap is zeroed, it can provide additional locking force, thereby enhancing the overall impact resistance after locking.

[0089] The in-plane translation module includes a fourth mounting base 5 and a fifth mounting base 6. The fourth mounting base 5 is slidably mounted on the fifth mounting base 6. The bottom of the third mounting base 4 is provided with two symmetrically arranged second cylindrical contact parts 46. The top of the fourth mounting base 5 is provided with a second V-shaped groove 51 for the corresponding second cylindrical contact parts 46 to be embedded.

[0090] The adjustment component of the tilting module includes a fourth adjusting screw 471, which is mounted on a second protrusion 47 at one end of the third mounting base 4, and the end of the fourth adjusting screw 471 abuts against a second stop 52 provided on the fourth mounting base 5.

[0091] The locking component of the tilting module includes several second locking bolts 531. The second locking bolts 531 pass through the second guide block 53 disposed on the fourth mounting base 5 and are threadedly connected to the third mounting base 4 or the fourth mounting base 5. The second guide block 53 has two second adjustment holes 532. One end of the second locking bolt 531 passes through the corresponding second adjustment hole 532. The contact surface between the second guide block 53 and the third mounting base 4 forms a Z-axis guide surface.

[0092] The structure of "second cylindrical contact part 46 and second V-groove 51" and "second guide block 53" ensures the purity of Z-circle rotation adjustment, and the adjustable gap design takes into account both assembly convenience and final locking strength.

[0093] like Figure 11-13 As shown, the adjustment component of the in-plane translation module includes two third protrusions 61. The two third protrusions 61 are symmetrically fixed on the fifth mounting base 6. A fifth adjusting screw 611 is installed on the third protrusion 61. One end of the fifth adjusting screw 61 passes through the third protrusion 61 and abuts against the side wall of the fourth mounting base 5.

[0094] The locking component of the in-plane translation module includes a plurality of third locking bolts 541. The third locking bolts 541 pass through the third adjustment hole 54 on the fourth mounting base 5 and are threadedly connected to the fifth mounting base 6. The third adjustment hole 54 constitutes the second guide structure.

[0095] The fourth mounting base 5 has three third adjustment holes 54, and the top of the fifth mounting base 6 has three threaded holes that correspond one-to-one with the three third adjustment holes 54. The third locking bolt 541 passes through the corresponding third adjustment hole 54 and is threaded into the corresponding threaded hole.

[0096] like Figure 1-3 As shown in Figures 5, 9, 14, and 17, the central tension spring 11 is housed in the first mounting hole 13 that passes through the center of each module. The first mounting base 2 has a placement hole 62, which connects to the circular hole 27 and extends to the position corresponding to the guide cylinder 31.

[0097] The central tension spring 11 is connected to a central connecting rod 111 at both ends, one of the central connecting rods 111 being embedded in the corresponding placement hole 62. The bottom of the fifth mounting base 6 has a placement groove 63, which is connected to the first mounting hole 13. The two ends of the central tension spring 11 abut against the top of the second mounting base 3 and the inner wall of the placement groove 63 respectively through the central connecting rod 111.

[0098] The peripheral tension springs 12 are respectively housed in the second mounting hole 37 between the second mounting base 3 and the third mounting base 4, and in the third mounting hole 45 between the third mounting base 4 and the fourth mounting base 5. The two ends of the peripheral tension springs 12 abut against the corresponding mounting bases through the adjusting rods 121.

[0099] The specific operation method of this invention is as follows:

[0100] First, the optical components are installed and pre-fixed on the out-of-plane translation module on the top layer. Then, according to the optical system assembly and adjustment requirements, the five degrees of freedom (DX, RX, RY, RZ, DY) are finely adjusted in sequence. DX: translation along the X-axis; RX: rotation around the X-axis; RY: rotation around the Y-axis; RZ: rotation around the Z-axis; DY: translation along the Y-axis.

[0101] Before adjustment, by moderately tightening the four screw shafts 23 of the out-of-plane translation module, the two sets of L-shaped blocks 21 are driven to move in opposite directions under the guidance of the sliding pin 25 and the sliding pin groove 211. This operation generates a uniform radial constraint force in the entire tensioning mechanism, eliminates the gap between the first mounting seat 2 and the bearing structure, and provides a rigid foundation for subsequent precision adjustment.

[0102] Step 1: X-axis translation adjustment: Operate the first adjusting screws 261 on the two mounting plates 26, simultaneously or separately screwing in / out the two first adjusting screws 261. The ends of the first adjusting screws 261 abut against the top of the first mounting base 2, thereby pushing the entire upper assembly carrying the optical device to translate precisely along the X-axis. The optical device drives the first locking blocks 22 on both sides to translate along the X-axis. The first locking blocks 22 drive the screw shaft guide hole 221 to move relative to the screw shaft 23. The screw shaft 23 and the screw shaft guide hole 221 cooperate to provide precise linear guidance.

[0103] X-axis locking: Tighten the four screw shafts 23 of the out-of-plane translation module, further causing the first locking block 22 to press against the side wall of the optical device, thus completely fixing the DX degree of freedom.

[0104] Step 2: Rotation adjustment around the X-axis: Operate the two second adjusting screws 321. Screw in one screw and simultaneously unscrew the other screw, with the ends pressing against the adjusting lug 28, driving the first mounting base 2 to rotate precisely around the axis of the fixed guide cylinder 31. The guide cylinder 31 and the circular hole 27 form a high-precision cylindrical surface mating guide pair, realizing pure rotational motion around the X-axis.

[0105] Locking: After adjustment, immediately tighten multiple tightening bolts 291. These tightening bolts 291 pass through the rotating holes 29 of the first mounting base 2 and connect to the locking lugs 33 of the second mounting base 3. The direction of their tightening force is perpendicular to the rotation tangent, which can firmly press the mating cylindrical surface to achieve zero-backlash locking.

[0106] Step 3: Pitch adjustment around the Y-axis: Operate the third adjusting screw 351. Screw the screw in or out, with its end abutting against the first stop 42, so that the second mounting base 3 uses the two first cylindrical contact parts 34 at its bottom as fulcrums to make precise pitch swing within the first V-groove 41 of the third mounting base 4. The two-point contact between the V-groove and the cylindrical surface, combined with the single point of action of the adjusting screw, constitutes a stable three-point contact and rotational guidance.

[0107] Locking: After adjustment, tighten the four first locking bolts 44. These bolts pass through the first adjustment hole 431 on the second locking block 43 and lock with the first guide block 36. The contact surface between the first guide block 36 and the second locking block 43 forms an adjustable Y guide surface. The locking force acts perpendicularly on the guide surface. While pressing, if the gap of the Y guide surface is pre-adjusted to zero, a huge additional static friction force will be generated, forming an extremely stable double locking.

[0108] Step 4: Tilting adjustment around the Z-axis: Operate the fourth adjusting screw 471 to adjust the pitch around the Y-axis. This screw drives the third mounting base 4 to use the two second cylindrical contact parts 46 at its bottom as fulcrums to make precise tilting swings in the second V-groove 51 of the fourth mounting base 5, realizing three-point contact rotation adjustment around the Z-axis.

[0109] Locking: After adjustment, tighten multiple second locking bolts 531. These bolts pass through the second adjustment holes 532 on the second guide block 53 and lock with the third mounting base 4 or the fourth mounting base 5. The contact surface between the second guide block 53 and the third mounting base 4 forms an adjustable Z-guide surface, and its locking principle and double locking effect are the same as those of the RY degree of freedom.

[0110] Step 5: Translation along the Y-axis: Operate the two fifth adjusting screws 611, simultaneously screwing in one fifth adjusting screw 611 and unscrewing the other fifth adjusting screw 611. Its end abuts against the side wall of the fourth mounting base 5, pushing the fourth mounting base 5 to precisely translate relative to the fifth mounting base 6 along the Y-axis. The third adjusting hole 54 cooperates with the rod of the third locking bolt 541, serving as the second guide structure.

[0111] Locking: Tighten the three third locking bolts 541. The third locking bolts 541 pass through the third adjustment hole 54 of the fourth mounting base 5 and connect to the threaded hole of the fifth mounting base 6, directly locking the moving and fixed parts into one, completing the adjustment and fixation of all degrees of freedom.

[0112] Throughout the adjustment process, the spring system continuously provides the necessary force:

[0113] Reset and backlash elimination: The central tension spring 11 applies a continuous preload to the stacked structure through the central connecting rod 111, which helps to balance part of the gravity, maintain contact between modules and eliminate gaps. The peripheral tension spring 12 provides a direct reset force near the RY and RZ adjusting screws through the adjusting rod 121. The two are connected in parallel to ensure that the adjusting screws feel smooth when adjusted in both directions and automatically eliminate transmission chain gaps, thereby improving adjustment accuracy.

[0114] The overall stiffness of this parallel spring system is designed to accommodate the weight of different optical devices, from light to heavy, ensuring that appropriate preload is provided under various loads and guaranteeing consistent resolution adjustment.

[0115] Of course, the above are just typical examples of this application. In addition, this application may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed in this application.

Claims

1. A high-load-bearing multi-dimensional optical adjustment frame device, characterized in that, include: The adjustment frame (1) consists of an out-of-plane translation module for carrying optical devices and rotatable around the X-axis, a pitch module that rotates around the Y-axis, a tilt module that rotates around the Z-axis, and an in-plane translation module that are stacked from top to bottom along the X-axis direction. Each module is equipped with an adjustment component and a locking component, and the force direction of the adjustment component is perpendicular to the force direction of the locking component. The out-of-plane translation module includes a tensioning mechanism for supporting and fixing optical devices, and the tensioning mechanism is provided with a first guide structure for realizing the translation of the optical devices along the X-axis direction; The in-plane translation module includes a second guide structure for realizing the translation of the optical device along the Y-axis direction; The spring system includes a central tension spring (11) passing through the center of the adjustment frame (1) and a plurality of peripheral tension springs (12) arranged near the adjustment component, wherein the plurality of peripheral tension springs (12) are arranged in parallel with the central tension spring (11); The out-of-plane translation module also includes a first mounting base (2), and the tensioning mechanism includes two sets of locking components symmetrically mounted on the first mounting base (2). Each set of locking components includes two L-shaped blocks (21), a first locking block (22), and two screw shafts (23). The first locking block (22) serves as the first locking component of the out-of-plane translation module. Two L-shaped blocks (21) are slidably disposed on the first mounting base (2) and slide in opposite directions. Four insert blocks (24) are fixed on the first mounting base (2). One end of the screw shaft (23) passes through the L-shaped block (21) and is threaded to the corresponding insert block (24). The first locking block (22) is disposed between the corresponding L-shaped block (21) and the insert block (24). The first locking block (22) has a screw shaft guide hole (221) for the screw shaft (23) to pass through. The screw shaft guide hole (221) constitutes the first guide structure. The L-shaped block (21) is provided with a sliding pin groove (211), and the first mounting base (2) is fixed with a sliding pin (25) that cooperates with the sliding pin groove (211). The first adjustment component of the out-of-plane translation module includes two symmetrically arranged mounting plates (26). The mounting plates (26) are used to connect with the optical device. A first adjustment screw (261) is provided on the mounting plate (26). The end of the first adjustment screw (261) abuts against the top of the first mounting base (2).

2. The high-load-bearing multi-dimensional optical adjustment frame device according to claim 1, characterized in that, The pitch module includes a second mounting base (3) and a guide cylinder (31), with the guide cylinder (31) fixed to the top of the second mounting base (3); The bottom of the first mounting base (2) is provided with a circular hole (27) that mates with the guide cylinder (31), so that the first mounting base (2) can rotate around the axis of the guide cylinder (31); The second adjustment component of the out-of-plane translation module includes two L-shaped mounting blocks (32) and two adjustment ears (28). The two adjustment ears (28) are symmetrically arranged at one end of the corresponding first mounting base (2). The two mounting blocks (32) are fixed on the corresponding second mounting base (3). The mounting blocks (32) are provided with a second adjustment screw (321). One end of the second adjustment screw (321) abuts against one end of the corresponding adjustment ear (28). The second locking component of the out-of-plane translation module includes several locking lugs (33) provided on the second mounting base (3), several rotating holes (29) are opened on the first mounting base (2), and several tightening bolts (291) are installed on the first mounting base (2). One end of the tightening bolt (291) passes through the corresponding rotating hole (29) and is threadedly connected to the second mounting base (3).

3. The high-load-bearing multi-dimensional optical adjustment frame device according to claim 2, characterized in that, The tilting module includes a third mounting base (4), and the lower end of the second mounting base (3) is provided with two symmetrically arranged first cylindrical contact parts (34). The top of the third mounting base (4) is provided with a first V-shaped groove (41) for the corresponding first cylindrical contact parts (34) to be embedded.

4. The high-load-bearing multi-dimensional optical adjustment frame device according to claim 3, characterized in that, The pitch module adjustment component includes a third adjustment screw (351), which is mounted on a first protrusion (35) at one end of the second mounting base (3), and the end of the third adjustment screw (351) abuts against a first stop (42) provided on the third mounting base (4). The locking component of the pitch module includes several first locking bolts (44). The first locking bolts (44) pass through the second locking block (43) provided on the third mounting base (4) and are threadedly connected to the first guide block (36) fixed on the second mounting base (3). The second locking block (43) has a first adjusting hole (431) through which one end of the first locking bolt (44) passes.

5. A high-load-bearing multi-dimensional optical adjustment frame device according to claim 4, characterized in that, The in-plane translation module includes a fourth mounting base (5) and a fifth mounting base (6). The fourth mounting base (5) is slidably mounted on the fifth mounting base (6). The bottom of the third mounting base (4) is provided with two symmetrically arranged second cylindrical contact parts (46). The top of the fourth mounting base (5) is provided with a second V-shaped groove (51) for the corresponding second cylindrical contact parts (46) to be embedded.

6. The high-load-bearing multi-dimensional optical adjustment frame device according to claim 5, characterized in that, The adjustment component of the tilting module includes a fourth adjustment screw (471), which is mounted on a second protrusion (47) at one end of the third mounting base (4), and the end of the fourth adjustment screw (471) abuts against a second stop (52) provided on the fourth mounting base (5). The locking component of the tilting module includes several second locking bolts (531). The second locking bolts (531) pass through the second guide block (53) provided on the fourth mounting base (5) and are threadedly connected to the third mounting base (4) or the fourth mounting base (5). The second guide block (53) has two second adjustment holes (532). One end of the second locking bolt (531) passes through the corresponding second adjustment hole (532).

7. A high-load-bearing multi-dimensional optical adjustment frame device according to claim 6, characterized in that, The adjustment component of the in-plane translation module includes two third protrusions (61), which are symmetrically fixed on the fifth mounting base (6). A fifth adjusting screw (611) is installed on the third protrusion (61), and the fifth adjusting screw (611) passes through one end of the third protrusion (61) and abuts against the side wall of the fourth mounting base (5). The locking component of the in-plane translation module includes a plurality of third locking bolts (541), which pass through the third adjustment hole (54) on the fourth mounting base (5) and are threadedly connected to the fifth mounting base (6). The third adjustment hole (54) constitutes the second guide structure.

8. A high-load-bearing multi-dimensional optical adjustment frame device according to claim 7, characterized in that, The central tension spring (11) is housed in the first mounting hole (13) that passes through the center of each module. The first mounting base (2) has a placement hole (62) that connects to the circular hole (27) and extends to the position corresponding to the guide cylinder (31). The central tension spring (11) is connected to a central connecting rod (111) at both ends. One of the central connecting rods (111) is embedded in the corresponding placement hole (62). The bottom of the fifth mounting base (6) has a placement groove (63). The placement groove (63) is connected to the first mounting hole (13). The two ends of the central tension spring (11) abut against the top of the second mounting base (3) and the inner wall of the placement groove (63) respectively through the central connecting rod (111). The peripheral tension springs (12) are respectively housed in the second mounting hole (37) between the second mounting seat (3) and the third mounting seat (4), and in the third mounting hole (45) between the third mounting seat (4) and the fourth mounting seat (5). The two ends of the peripheral tension springs (12) abut against the corresponding mounting seats through the adjusting rods (121).

9. A high-load-bearing multi-dimensional optical adjustment frame device according to claim 8, characterized in that, The contact surfaces of the first guide block (36) and the second locking block (43) form a Y-guide surface in the Y-axis direction, and the contact surfaces of the second guide block (53) and the third mounting base (4) form a Z-guide surface in the Z-axis direction.

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