Rigid-flexible differential adjusting structure and platform
By using a rigid-flexible differential adjustment structure, which combines threaded rods, flexible components, and elastic columns, the problem of insufficient accuracy and load-bearing capacity of existing adjustment mechanisms is solved, achieving high-precision attitude adjustment and system stability, and improving the reliability of measurement and operation.
Patent Information
- Application Number
- CN202520160855.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2035-01-23
AI Technical Summary
Existing yaw and pitch adjustment mechanisms suffer from limitations in precision due to the manufacturing tolerances, elastic deformation, and elastic characteristics of screws and springs being affected by load. This results in insufficient accuracy to meet high-precision requirements, limited load-bearing capacity, and impacts system performance and reliability.
The rigid-flexible differential adjustment structure is adopted. Through the combination of threaded rod, flexible component and elastic column, the parallel state of the mounting block and the adjustment block is maintained. The spacing is precisely adjusted by the drive component to ensure the stability and accuracy of the attitude adjustment.
It significantly improves measurement and operation accuracy, stably maintains the posture of the operating head, ensures system performance and reliability, and meets increasingly stringent application requirements.
Smart Images
Figure CN223685383U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to precision adjustment equipment technical field especially, relates to a rigid-flexible differential adjustment structure and platform. BACKGROUND
[0002] In the field of precision measurement and micro-operation, such as the posture adjustment of measurement heads such as microscopes, confocal, white light interferometer and operating heads such as probes, dispensing heads, bonding heads, is crucial to ensure that it maintains accurate perpendicularity with the operating object. At present, the widely used deflection and pitch adjustment mechanism adopts the combination of screw and spring reset to realize posture adjustment. However, a large number of practices and researches show that the existing adjustment scheme has significant drawbacks. In terms of accuracy, due to the influence of the manufacturing tolerance, elastic deformation and other factors of the screw and spring, it is difficult to realize high-precision posture fine adjustment, which cannot meet the increasingly stringent requirements of measurement and operation accuracy. At the same time, its carrying capacity is also limited. When facing larger load, the elastic properties of the spring are easy to change, which leads to the fact that the adjustment mechanism cannot stably maintain the posture of the operating head, thereby affecting the working performance and reliability of the whole system. In view of this, the utility model provides a rigid-flexible differential adjustment structure. SUMMARY
[0003] The utility model aims at the problem that the deflection and pitch adjustment mechanism in the background art has the manufacturing tolerance, elastic deformation and elastic properties of the screw and spring affected by load, which makes the accuracy difficult to meet the requirements, the carrying capacity is limited, and further affects the working performance and reliability of the system, and provides a rigid-flexible differential adjustment structure and platform.
[0004] In the first aspect, the utility model provides a rigid-flexible differential adjustment structure, which comprises a mounting block and an adjustment block, a threaded rod is connected between the mounting block and the adjustment block, a first connecting block is connected to one side of the mounting block, a second connecting block is connected to one side of the adjustment block, and a flexible component is connected between the mounting block and the first connecting block or between the adjustment block and the second connecting block. The flexible component controls the movement of the mounting block or the adjustment block, so that the mounting block and the adjustment block always maintain a relative parallel state.
[0005] Optionally, the threaded rod is a bolt or a lead screw.
[0006] Optionally, a driving assembly is installed at the end of the threaded rod away from the adjustment block, and the driving assembly is a knob or an electric driving mechanism.
[0007] Optionally, the knob is fixedly connected to the end of the threaded rod away from the adjustment block, and the knob is rotatably connected to the side surface of the mounting block.
[0008] Optionally, the electric drive mechanism comprises a mounting frame fixedly connected to the mounting block on the side away from the adjusting block, a servo motor is mounted on the side of the mounting frame away from the mounting block, and the output end of the servo motor is connected with the threaded rod through a shaft coupling.
[0009] Optionally, a bearing is mounted in the mounting block, and the bearing is rotationally matched with the threaded rod.
[0010] Optionally, the flexible assembly is at least one group of flexible hinges.
[0011] In a second aspect, the utility model provides a kind of rigid-flexible differential adjustment platform, it includes fixed plate, moving plate and at least two groups as described in first aspect rigid-flexible differential adjustment structure, the side edge position of the moving plate is installed elastic column, one end of the elastic column is fixedly connected with fixed plate, the first connecting block is connected with fixed plate or moving plate, the second connecting block is connected with fixed plate or moving plate.
[0012] Optionally, the elastic column and the plurality of rigid-flexible differential adjustment components are arranged at equal intervals around the central axis of the moving plate.
[0013] As described above, the present application includes at least one of the following beneficial technical effects:
[0014] The utility model discloses a flexible assembly is arranged, when the moving plate is inclined, can guarantee the parallel state of mounting block and adjusting block, to ensure that the threaded cooperation of adjusting block and threaded rod is smooth;
[0015] Further, by the arrangement of the elastic column, the distance between the adjusting block and the mounting block can be accurately adjusted when the threaded rod is rotated. With the change of the distance, the moving plate will be inclined with the elastic column as the center, thereby realizing accurate adjustment of the posture of the moving plate.
[0016] As described above, the utility model can significantly improve the measurement and operation accuracy, stably maintain the operation head posture, ensure the system performance and reliability, and meet the increasingly stringent application requirements. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is a structure schematic view of the rigid-flexible differential adjustment structure of the utility model;
[0018] Figure 2 It is a structure schematic view of another mounting position of the flexible assembly;
[0019] Figure 3 It is a schematic view of a rigid-flexible differential adjustment platform using a knob drive;
[0020] Figure 4 It is a schematic view of a rigid-flexible differential adjustment platform using an electric drive mechanism;
[0021] Figure 5 For Figure 4 Schematic diagram of increasing bearing limiting.
[0022] Reference signs:
[0023] 1, mounting block; 11, first connecting block;
[0024] 2, adjusting block; 21, second connecting block;
[0025] 3, threaded rod; 4, flexible assembly; 5, fixed block; 6, moving plate; 7, elastic column; 8, knob;
[0026] 9, electric drive mechanism; 91, mounting frame; 92, servo motor; 93, shaft coupling; 94, bearing. DETAILED DESCRIPTION
[0027] The technical solutions of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments.
[0028] The components of the embodiments of the present application generally described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but only represents selected embodiments of the present application.
[0029] Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present application.
[0030] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0031] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, the term "installation", "connection", "connection" should be broad sense understanding, for example, can be fixed connection, can be detachable connection, or integrally connected;Can be mechanical connection, can be electrical connection;Can be directly connected, can be indirectly connected through the intermediate medium, can be the communication inside two elements.For the ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.
[0032] Embodiment one
[0033] As Figure 1 The utility model discloses a rigid-flexible differential adjusting structure, including the mounting block 1, the adjusting block 2 who is opposite parallel with the mounting block 1, the threaded rod 3 is connected in the adjusting block 2, the first connecting block 11 is arranged in one side of mounting block 1, the second connecting block 21 is connected in one side of adjusting block 2.When the threaded rod 3 is rotated when exerting external force, according to screw drive principle, after the second connecting block 21 of adjusting block 2 one side is fixedly installed, adjusting block 2 will carry out linear displacement along the axial direction of threaded rod 3, and then the interval between mounting block 1 and adjusting block 2 is accurately adjusted.And the accurate adjustment of this interval is the key to realize the attitude adjustment.
[0034] Specifically, please refer to Figure 2 The above-mentioned adjusting mechanism further includes flexible component 4 for keeping mounting block 1 and adjusting block 2 in parallel state, and the flexible component 4 is at least one group of flexible hinge, adopts two-piece type parallel installation structure in this embodiment, and the unique flexible characteristic can ensure that mounting block 1 and adjusting block 2 always keep parallel state during adjusting attitude and after adjusting completion.This parallel state is crucial for maintaining the stability and precision of the whole adjusting system.The connecting position of flexible component 4 has specific requirements, which can be connected between mounting block 1 and first connecting block 11, or between adjusting block 2 and second connecting block 21.It should be noted that mounting block 1 and first connecting block 11 or adjusting block 2 and second connecting block 21 always have two fixed settings, so as to ensure that the mechanical properties of the whole structure are stable and reliable when the flexible component 4 plays a role.
[0035] The threaded rod 3 is a bolt or a screw rod, and the two common screw transmission components have good transmission accuracy and reliability.When the threaded rod 3 is rotated, due to the screw thread cooperation between the threaded rod 3 and the adjusting block 2, the adjusting block 2 can be driven to move accurately, and the moving distance is closely related to the number of rotation of the threaded rod 3 and the pitch.
[0036] As Figure 3As shown, the end of the threaded rod 3 away from the adjusting block 2 is provided with a driving assembly, the driving assembly adopts a knob 8, the knob 8 is fixedly connected to the end of the threaded rod 3 away from the adjusting block 2, and the knob 8 is rotatably connected to the side surface of the mounting block 1. This design enables the knob 8 to remain in place for rotation, and since the knob 8 has a large operating area and a good grip feeling, it greatly facilitates the rotation of the threaded rod 3 by the operator, and provides convenience for the posture adjustment operation.
[0037] Meanwhile, the optimal fixing position of the flexible assembly 4 is between the adjusting block 2 and the second connecting block 21, at this time, the mounting block 1 and the first connecting block 11 are fixedly arranged, in this way, when the driving part performs the adjusting action, the flexible assembly 4 will not generate additional acting force on the driving part during the deformation process, thereby avoiding driving the driving part to move, and ensuring the accuracy and stability of the driving adjustment.
[0038] Embodiment two
[0039] Please refer to Figure 3 The embodiment is applied to a rigid-flexible differential adjustment platform, and on the basis of the first embodiment, the rigid-flexible differential adjustment platform further comprises a fixed block 5 and a moving plate 6. The fixed block 5 is fixedly arranged, and the fixed block 5 plays a role of basic support and fixation in the whole system. Two groups of mounting blocks 1 are respectively arranged on the adjacent two sides of the fixed block 5, and two groups of adjusting blocks 2 are fixedly connected to the adjacent two sides of the moving plate 6. The moving plate 6 is provided with an elastic column 7, one end of the elastic column 7 is fixedly connected to the fixed block 5, and the other end of the elastic column 7 is connected to the fixed block 5 through a reliable fixed connection mode such as welding or riveting, so that the moving plate 6 is stably connected to the top of the fixed block 5 through the elastic column 7. The first connecting block 11 is connected to the fixed plate 5 or the moving plate 6, the second connecting block 21 is connected to the fixed plate 5 or the moving plate 6, and the first connecting block 11 and the second connecting block 21 are always installed on the same side and parallel to each other on the side edge of the fixed plate 5 and the moving plate 6. When the flexible assembly 4 is located between the mounting block 1 and the first connecting block 11, the adjusting block 2 on the other side and the second connecting block 21 can be optionally integrally formed, otherwise, when the flexible assembly 4 is arranged between the adjusting block 2 and the second connecting block 21, the mounting block 1 and the first connecting block 11 can be optionally integrally formed.
[0040] Furthermore, the elastic column 7 and the two sets of threaded rods 3 are arranged at equal intervals around the central axis of the movable plate 6, each forming a 120° angle with the central axis of the movable plate 6. This special layout design allows for precise adjustment of the distance between the adjusting block 2 and the mounting block 1 when the threaded rods 3 are rotated. As the distance changes, the movable plate 6 will tilt about the elastic column 7, thereby achieving precise adjustment of the attitude of the movable plate 6, which is particularly suitable for optical equipment, such as the angle adjustment of optical lenses. If the rigid-flexible differential adjustment components on both sides are adjusted at different distances simultaneously, the movable plate 6 will deflect, thus achieving different adjustment purposes of pitch and deflection at the same time.
[0041] In this embodiment, when the posture needs to be adjusted, the operator only needs to turn knob 8. The rotation of knob 8 will drive the threaded rod 3, which is fixedly connected to it, to rotate synchronously. During the rotation, the threaded rod 3, through its threaded engagement with the adjusting block 2, drives the adjusting block 2 to move. The movement of the adjusting block 2, in turn, cooperates with the flexible component 4. Through the transmission of force and the synergistic effect of the structure, the moving plate 6 is driven to deflect around the elastic column 7, ultimately achieving precise adjustment of the posture of the moving plate 6.
[0042] Example 3
[0043] like Figure 4 As shown, compared to Embodiment 1, the drive assembly has been further improved. In this case, the drive assembly can also employ an electric drive mechanism 9. The electric drive mechanism 9 includes a mounting frame 91 fixedly connected to the side of the mounting block 1 away from the adjusting block 2. The mounting frame 91 is secured in place by bolts, welding, or other methods to ensure its position remains fixed throughout the system. A servo motor 92 is mounted on the side of the mounting frame 91 away from the mounting block 1. Similarly, the servo motor 92 is secured to ensure its positional stability. The output end of the servo motor 92 is connected to the threaded rod 3 via a coupling 93. This connection method effectively transmits the output torque of the servo motor 92. When the servo motor 92 starts, the rotation of its output shaft drives the threaded rod 3 to rotate without loss via the coupling 93, thereby achieving precise adjustment of the position of the adjusting block 2.
[0044] Please see Figure 5 A bearing 94 is installed in mounting block 1, and bearing 94 rotates in engagement with threaded rod 3. This precise rotational engagement effectively reduces friction and wobble during the rotation of threaded rod 3, ensuring its stable position. The stability of threaded rod 3, in turn, ensures that flexible component 4 will not cause tilting of threaded rod 3 via adjusting block 2, thus guaranteeing that mounting block 1 and adjusting block 2 remain parallel. This provides crucial assurance for the accuracy and stability of the entire adjustment system.
[0045] In the embodiment, when the posture is adjusted, the operator only needs to start the servo motor 92, and the servo motor 92 will quickly respond to drive the threaded rod 3 to rotate at high speed and high precision through the shaft coupling 93. When the threaded rod 3 rotates, it will drive the adjusting block 2 to move according to the screw transmission principle. The movement of the adjusting block 2 further cooperates with the flexible assembly 4 to deflect the moving plate 6 with the elastic column 7 as the center through a series of structural coordination and mechanical action, and finally realize the precise adjustment of the posture of the moving plate 6.
[0046] The above specific embodiments are only several optional embodiments of the utility model, based on the technical scheme of the utility model and the related inspiration of the above embodiments, the person skilled in the art can make various alternative improvements and combinations to the above specific embodiments.
Claims
1. A rigid-flexible differential adjusting structure, comprising a mounting block (1) and an adjusting block (2), a threaded rod (3) being connected between the mounting block (1) and the adjusting block (2), a first connecting block (11) being connected to one side of the mounting block (1), and a second connecting block (21) being connected to one side of the adjusting block (2), characterized in that, A flexible component (4) is further included, which is connected between the mounting block (1) and the first connecting block (11) or between the adjusting block (2) and the second connecting block (21), and controls the movement of the mounting block (1) or the adjusting block (2) so that the mounting block (1) and the adjusting block (2) always keep parallel to each other.
2. A rigid-flex differential adjustment structure according to claim 1, wherein The threaded rod (3) is a bolt or a screw rod.
3. A rigid-flex differential adjustment structure according to claim 2, wherein A driving component is installed at the end of the threaded rod (3) away from the adjusting block (2), which is a knob (8) or an electric driving mechanism (9).
4. A rigid-flex differential adjustment structure according to claim 3, wherein The knob (8) is fixedly connected to the end of the threaded rod (3) away from the adjusting block (2), and is rotatably connected to the side surface of the mounting block (1).
5. A rigid-flex differential adjustment structure according to claim 3, wherein The electric driving mechanism (9) comprises a mounting frame (91) fixedly connected to the side of the mounting block (1) away from the adjusting block (2), a servo motor (92) installed on the side of the mounting frame (91) away from the mounting block (1), and an output end of the servo motor (92) connected to the threaded rod (3) through a shaft coupling (93).
6. A rigid-flex differential regulation structure according to claim 5, wherein, A bearing (94) is installed in the mounting block (1) and is rotatably connected to the threaded rod (3).
7. A rigid-flex differential regulation structure according to claim 1, wherein, The flexible component (4) is at least one set of flexible hinges.
8. A rigid-flex differential adjustment platform, characterized by, The rigid-flexible differential adjusting structure comprises a fixed plate (5), a moving plate (6), and at least two sets of rigid-flexible differential adjusting structures according to any one of claims 1-7, an elastic column (7) is installed at the side edge of the moving plate (6), one end of the elastic column (7) is fixedly connected to the fixed plate (5), the first connecting block (11) is connected to the fixed plate (5) or the moving plate (6), and the second connecting block (21) is connected to the fixed plate (5) or the moving plate (6).
9. A rigid-flex differential adjustment platform according to claim 8, wherein, The elastic column (7) and the multiple sets of rigid-flexible differential adjusting components are arranged at equal intervals around the central axis of the moving plate (6).