Multi-degree-of-freedom adjusting mechanism of vibration exciter
By designing a multi-degree of freedom adjustment mechanism of the exciter, the combination of sliding, rotation and up and down swing is used to solve the detection dead angle problem caused by fixed installation, improve the detection flexibility and effectiveness, and is suitable for applications such as optical imaging.
Patent Information
- Application Number
- CN202421075366.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-16
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-05-16
AI Technical Summary
The fixed installation method of the existing vibration exciter leads to poor detection flexibility, and has detection dead angle problems, which affects the detection effect. Especially in optical imaging applications, due to structural errors, the optical axis is inconsistent, which affects the light quality.
A multi-degree-of-freedom adjustment mechanism of the exciter is designed, including a base plate, a moving plate, a rotating plate and an exciter. Through the combination of sliding, rotation and up and down swing, the adjustment of the three directions of X, Y, and Z is achieved, and the use of The helical pair and return spring improve adjustment accuracy and flexibility.
It realizes flexible adjustment of the exciter in the three directions of X, Y, and Z, solves the problem of detection dead angles, improves the flexibility and effectiveness of detection, and is suitable for detection needs in different working conditions.
Smart Images
Figure CN222232003U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vibration exciters, in particular to a multi-degree-of-freedom regulating mechanism for vibration exciters. Background Art
[0002] Existing installation methods for vibrators mostly use fixed installation, usually fixed installation in the detection system, which makes the test very inflexible, and the placement of some workpieces is limited, which will make it impossible to detect some points, affecting the effectiveness and effect of the detection.
[0003] For example, when applying the vibrator to optical imaging, part of the optical path will place a reflector or other optical device on the excitation part of the vibrator, so that the optical path is changed to obtain the light beam required for imaging. In order to ensure the quality of illumination, the optical axis of the optical device on the vibrator must be in the same straight line as the optical axis of the objective lens, that is, the higher the coaxiality of the two optical axes, the higher the illumination quality. However, due to the fixed installation of the vibrator, and due to the existence of machining errors and assembly errors of the structural parts, after actual assembly, the optical axis on the vibrator usually has various deviations from the theory, and it is impossible to achieve a high coaxiality, which affects the test results.
[0004] In view of this, the purpose of the utility model is to provide a new technical solution to solve the existing technical problems. Utility Model Content
[0005] In order to overcome the deficiencies of the prior art, the utility model provides a multi-degree-of-freedom adjustment mechanism for an exciter, which solves the problem that the exciter is fixedly installed, multi-degree-of-freedom adjustment cannot be performed, and there are detection blind spots.
[0006] The technical solution adopted by the utility model to solve its technical problems is:
[0007] A multi-degree-of-freedom adjustment mechanism for an exciter comprises a base plate, a movable plate, a rotating plate and an exciter, wherein the movable plate is axially slidably arranged on the base plate along the optical axis, the rotating plate is rotatably connected to the movable plate, and the exciter is rotatably arranged on the rotating plate.
[0008] In the above structure, a mounting plate is fixedly provided on the rotating plate, a rotating shaft is rotatably connected to the mounting plate, and the rotating shaft is fixedly connected to the vibration exciter.
[0009] In the above structure, a locking and limiting structure for limiting the rotation of the rotating shaft is provided on the mounting plate. The locking and limiting structure includes a limiting bolt and a limiting opening opened on the mounting plate. When the limiting bolt locks the limiting opening, the rotating shaft is locked to the mounting plate.
[0010] In the above structure, the rotating plate is arranged on the upper surface of the movable plate, and a rotating shaft is fixedly connected to the side of the rotating plate facing the movable plate. A rotating hole matching the rotating shaft is opened on the movable plate. When the rotating shaft rotates in the rotating hole, the rotating plate rotates on the movable plate.
[0011] In the above structure, the rotating plate is evenly provided with first limiting waist-shaped holes, the movable plate is fixedly provided with a first limiting column pin, and one end of the first limiting column pin away from the movable plate passes through the first limiting waist-shaped hole.
[0012] In the above structure, an axial driving member for driving the movable plate to slide is also included. The axial driving member is a screw pair, and the screw pair is arranged on the side of the movable plate away from the objective lens.
[0013] In the above structure, a return spring is arranged on the spiral pair, one end of the return spring is fixedly connected to the spiral pair, and the other end of the return spring is fixedly connected to the moving plate.
[0014] In the above structure, a second limiting waist-shaped hole is opened on the movable plate, and a second limiting column pin cooperating with the second limiting waist-shaped hole is arranged on the bottom plate, and one end of the second limiting column pin away from the bottom plate passes through the second limiting waist-shaped hole.
[0015] The beneficial effects of the utility model are: the vibration exciter can be adjusted in three directions of X, Y and Z, and the structure is simple, the operation is flexible and convenient, and it can be applied to different working condition detection requirements and solve the problem of test blind spots. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0018] Figure 2 It is a schematic diagram of the split structure of the utility model;
[0019] Figure 3 This is a schematic diagram of the connection structure between the rotating plate and the moving plate of the utility model;
[0020] Figure 4 It is a schematic diagram of the connection structure between the axial drive member and the movable plate.
[0021] Figure numerals: 1. exciter; 2. movable plate; 21. rotating hole; 22. second limiting waist-shaped hole; 23. abutment portion; 3. rotating plate; 31. rotating shaft; 32. first limiting waist-shaped hole; 4. axial driving member; 41. reset spring; 5. mounting plate; 51. limiting opening; 52. rotating shaft; 6. bottom plate. DETAILED DESCRIPTION
[0022] The following is combined with Figure 1-4 The utility model is further described.
[0023] The following will clearly and completely describe the concept, specific structure and technical effects of the utility model in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the utility model. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the formation of a better connection structure by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the creation of the utility model can be combined interchangeably without conflicting with each other.
[0024] Reference Figures 1 to 4 The utility model provides a multi-degree-of-freedom adjustment mechanism for an exciter, which is used to adjust the exciter 1 in the directions of three degrees of freedom: X, Y, and Z, to avoid detection blind spots (taking the application in optical detection as an example, the direction of the objective lens optical axis is the X direction, the direction that is in the same horizontal plane as the X direction and perpendicular to the X direction is the Y direction, and the direction perpendicular to the plane where the X and Y directions are located is the Z direction).
[0025] Reference Figures 1 to 3 The multi-degree-of-freedom adjustment mechanism of the vibrator includes a base plate 6, a moving plate 2, a rotating plate 3 and a vibrator 1. The vibrator 1 is rotatably arranged on the rotating plate 3, the rotating plate 3 is rotatably arranged on the moving plate 2, and the moving plate 2 is slidably arranged on the base plate 6 along the X direction. The moving plate 2 is slidably arranged on the base plate 6, and the relative distance between the vibrator 1 and the objective lens can be adjusted in the X direction by sliding the moving plate 2; the rotating plate 3 is rotated on the moving plate 2, and the deflection angle of the vibrator 1 in the Y direction can be adjusted by rotating the rotating plate 3; the vibrator 1 is rotatably arranged on the rotating plate 3, and the deflection angle of the vibrator 1 in the Z direction can be adjusted. Corresponding fixed connectors can be arranged on the base plate 6 so that the entire mechanism can be installed in a desired position.
[0026] Reference Figure 2 Specifically, the rotating plate 3 is fixedly connected with a mounting plate 5, and there are two mounting plates 5, which are symmetrically arranged on the rotating plate 3, and the exciter 1 is installed between the two mounting plates 5. A rotating shaft 52 is rotatably connected to the mounting plate 5, and one end of the rotating shaft 52 away from the mounting plate 5 is fixedly connected to the exciter 1.
[0027] Furthermore, a locking and limiting structure is provided on the mounting plate 5, and the locking and limiting structure is used to limit the rotation of the rotating shaft 52. When the deflection angle of the exciter 1 in the Z direction is adjusted, the locking and limiting structure can be tightened to limit the rotation of the exciter 1. Specifically, a through hole for mounting the rotating shaft 52 is provided on the mounting plate 5, and the rotating shaft 52 can be rotatably installed in the through hole. The locking and limiting structure includes a limiting bolt (not shown in the figure) and a limiting opening 51 provided on the mounting plate 5, and the limiting opening 51 is connected to the through hole, and the limiting bolt is used to tighten the limiting opening 51. The limiting bolt is threadedly connected to the mounting plate 5, and crosses from one side of the limiting opening 51 to the other side of the limiting opening 51. When the limiting bolt tightens the limiting opening 51, the rotating shaft 52 is fixed to the mounting plate 5, that is, the rotating shaft 52 is in a locked state and cannot rotate relative to each other in the through hole.
[0028] Reference Figure 2 and Figure 3 The rotating plate 3 is rotatably arranged on the movable plate 2. Specifically, the rotating plate 3 is rotatably arranged on the upper surface of the movable plate 2. A rotating shaft 31 is fixedly arranged on the side of the rotating plate 3 facing the movable plate 2. A rotating hole 21 matching the rotating shaft 31 is opened on the movable plate 2. The rotating shaft 31 is rotatably connected to the rotating hole 21.
[0029] Furthermore, the movable plate 2 is provided with a first limiting column pin (not shown in the figure) for limiting the rotation range of the rotating plate 3. One end of the first limiting column pin is fixedly provided on the movable plate 2. The rotating plate 3 is provided with a first limiting waist-shaped hole 32. One end of the first limiting column pin away from the movable plate 2 passes through the first limiting waist-shaped hole 32. When the rotating plate 3 rotates in the rotating hole 21, the first limiting column moves in the first limiting waist-shaped hole 32. In this embodiment, the first limiting waist-shaped holes 32 are provided at the four corners of the rotating plate 3. Accordingly, the movable plate 2 is provided with first limiting column pins corresponding to the first limiting waist-shaped holes 32. The first limiting column pin is used in conjunction with the first limiting waist-shaped hole 32 to limit the rotation range of the rotating plate 3 to reduce the possibility of excessive rotation of the rotating plate 3. It should be noted that in actual applications, the size of the first limiting waist-shaped hole 32 is set as required. In addition, the diameter of one end of the first limiting pin passing through the rotating hole 21 can be greater than the width of the first limiting waist-shaped hole 32, thereby limiting the movement of the rotating plate 3 in the Z direction and reducing the possibility of the rotating plate 3 separating from the moving plate 2 during rotation.
[0030] The movable plate 2 is slidably arranged on the bottom plate 6 along the X direction. In one embodiment, a slide rail is arranged on the bottom plate 6, and a slide groove is provided on the side of the movable plate 2 facing the bottom plate 6, and the slide groove cooperates with the slide rail. In other embodiments, the sliding connection between the movable plate 2 and the bottom plate 6 can present other structural forms, such as a slide groove is provided on the bottom plate 6, and the movable plate 2 is slidably arranged in the slide groove, or a sliding connection form in which a guide rail cooperates with a slider, etc., as long as the above functions can be achieved, and no sole limitation is made here.
[0031] Reference Figure 4 Furthermore, the multi-degree-of-freedom adjustment mechanism of the vibrator 1 also includes an axial driving member 4, which is used to drive the movable plate 2 to slide on the mounting plate 5. In the present embodiment, the axial driving member 4 is a spiral pair, i.e., a screw nut structure. The nut structure of the spiral pair is fixedly arranged on the bottom plate 6, and the spiral pair is located on the side of the movable plate 2 away from the objective lens. The side of the movable plate 2 away from the objective lens is provided with an abutment portion 23. The screw structure of the spiral pair is rotated so that one end of the screw structure abuts against the abutment portion 23 to push the movable plate 2 to slide on the mounting plate 5, so as to adjust the position of the vibrator 1 in the X direction. The spiral pair is provided to drive the movable plate 2 to slide. Compared with directly pushing the movable plate 2 to adjust the position, the moving accuracy is higher, which is conducive to fine-tuning the position of the vibrator 1. A reset spring 41 is provided on the spiral pair, one end of the reset spring 41 is fixedly connected to the nut structure of the spiral pair, and the other end of the reset spring 41 is fixedly connected to the abutment portion 23 of the movable plate 2. When the spiral pair pushes the moving plate 2 to move, the reset spring 41 is elastically stretched. When the spiral pair is rotated to make the spiral pair retreat to the initial position, the moving plate 2 is separated from the abutment of the spiral pair. At this time, the elasticity of the reset spring 41 is released, pulling the moving plate 2 to reset. Under the cooperation of the spiral pair and the reset spring 41, the vibration exciter 1 can move forward or backward in the X-axis direction, with a simple structure and convenient adjustment.
[0032] Furthermore, a second limiting pin (not shown) is provided on the bottom plate 6, and a second limiting waist-shaped hole 22 is correspondingly provided on the movable plate 2. The second limiting pin cooperates with the second limiting waist-shaped hole 22. When the movable plate 2 slides on the bottom plate 6, the second limiting pin moves in the second waist-shaped hole. In this embodiment, the movable plate 2 is provided with second limiting waist-shaped holes 22 on both sides of the opposite sides close to the rotating plate 3. Correspondingly, the bottom plate 6 is provided with second limiting pins corresponding to the second limiting waist-shaped holes 22. The second limiting pin is used in conjunction with the second limiting waist-shaped hole 22 to limit the sliding range of the movable plate 2, so as to reduce the possibility that the sliding range of the movable plate 2 is too large.
[0033] The implementation process of the utility model is:
[0034] During use, when it is necessary to adjust the distance of the vibrator 1 in the X direction, rotate the screw pair to push the movable plate 2 to slide on the mounting plate 5, and observe the light spot effect while sliding to determine the coaxiality, until it moves to the desired light spot effect, then stop rotating; when it is necessary to adjust the deflection angle of the vibrator 1 in the Y direction, slowly rotate the rotating plate 3 (according to actual needs) and observe the light spot effect until it rotates to the desired position; when it is necessary to adjust the deflection angle of the vibrator 1 in the Z direction, first unlock the limit bolt, then swing the vibrator 1 up and down, and observe the light spot effect, and tighten the limit bolt when it is adjusted to the desired state. Similarly, the X, Y, and Z directions of the vibrator 1 can also be adjusted at the same time, that is, the vibrator 1 can be slid, rotated, and swung up and down at the same time, and the coaxiality can be adjusted in accordance with the light spot situation.
[0035] The above is a specific description of the preferred implementation of the utility model, but the invention of the utility model is not limited to the described embodiments. Technical personnel familiar with the field can also make various equivalent deformations or substitutions without violating the spirit of the utility model. These equivalent deformations or substitutions are all included in the scope defined by the claims of this application.
Claims
1. A multi-degree-of-freedom adjustment mechanism for an exciter, characterized in that: The invention comprises a bottom plate, a moving plate, a rotating plate and an exciter. The moving plate is axially slidably arranged on the bottom plate along the optical axis. The rotating plate is rotatably connected to the moving plate. The exciter is rotatably arranged on the rotating plate.
2. The multi-degree-of-freedom adjustment mechanism of an exciter according to claim 1, characterized in that: A mounting plate is fixedly arranged on the rotating plate, a rotating shaft is rotatably connected to the mounting plate, and the rotating shaft is fixedly connected to the vibration exciter.
3. The multi-degree-of-freedom adjustment mechanism of an exciter according to claim 2, characterized in that: The mounting plate is provided with a locking and limiting structure for limiting the rotation of the rotating shaft. The locking and limiting structure includes a limiting bolt and a limiting opening opened on the mounting plate. When the limiting bolt locks the limiting opening, the rotating shaft is locked to the mounting plate.
4. The multi-degree-of-freedom adjustment mechanism for an exciter according to claim 1, characterized in that: The rotating plate is arranged on the upper surface of the movable plate, a rotating shaft is fixedly connected to the side of the rotating plate facing the movable plate, a rotating hole matching with the rotating shaft is opened on the movable plate, and when the rotating shaft rotates in the rotating hole, the rotating plate rotates on the movable plate.
5. The multi-degree-of-freedom adjustment mechanism for an exciter according to claim 4, characterized in that: The rotating plate is evenly provided with first limiting waist-shaped holes, the movable plate is fixedly provided with a first limiting column pin, and one end of the first limiting column pin away from the movable plate passes through the first limiting waist-shaped hole.
6. The multi-degree-of-freedom adjustment mechanism for an exciter according to claim 1, characterized in that: It also includes an axial driving member for driving the moving plate to slide. The axial driving member is a screw pair, and the screw pair is arranged on the side of the moving plate away from the objective lens.
7. The multi-degree-of-freedom adjustment mechanism for an exciter according to claim 6, characterized in that: The spiral pair is provided with a return spring, one end of the return spring is fixedly connected to the spiral pair, and the other end of the return spring is fixedly connected to the moving plate.
8. The multi-degree-of-freedom adjustment mechanism for an exciter according to claim 1, characterized in that: The movable plate is provided with a second limiting waist-shaped hole, the bottom plate is provided with a second limiting column pin which cooperates with the second limiting waist-shaped hole, and one end of the second limiting column pin away from the bottom plate passes through the second limiting waist-shaped hole.