Large-length dynamic calibration device based on synchronous measurement of laser interferometer

Abstract

The present invention relates to the field of laser interferometer measurement technology, and discloses a large-length dynamic calibration device based on synchronous measurement of a laser interferometer, comprising a base, a support frame is arranged on the top of the base, a fixed block is fixedly connected to the top of the base and the bottom of the support frame, a docking block 1 is fixedly connected to one side of the fixed block, a docking block 2 is fixedly connected to one side of the fixed block, a rotating column is rotatably connected inside the docking block 2, a connecting rod is fixedly connected to the outer wall of the rotating column, one end of one connecting rod is rotatably connected to another connecting rod, a slider is rotatably connected inside the connecting rod, and a limiting block is arranged between the docking blocks 1. Through the cooperation between the docking block 1, the connecting rod and the limiting block and other components, an efficient double-layer shock-absorbing and buffering effect is achieved, so that the vibration energy is absorbed and dissipated layer by layer through the multi-stage buffer structure, which significantly reduces the impact of vibration on the internal structure and performance of the equipment.

Description

Technical Field

[0001] The invention relates to the technical field of laser interferometer measurement, in particular to a large-length dynamic calibration device based on synchronous measurement of a laser interferometer. Background Art

[0002] Laser interferometer is an instrument that uses the principle of laser interference for precision measurement. Due to its high precision and non-contact measurement characteristics, laser interferometer has become an important tool in scientific research and industrial production, and is widely used in various fields that require high-precision measurement. Because the measurement accuracy of laser interferometer can reach the nanometer level, it far exceeds the accuracy requirements of traditional measurement methods. This is especially important for long-length measurements, because any tiny error will be magnified over a large length range. So now in order to accurately measure and calibrate long-length objects or distances, we will measure them based on laser interferometers.

[0003] In the field of modern industry and precision manufacturing, equipment is often subject to various external vibration interferences during operation. These vibrations not only affect the normal operation of the equipment, but may also damage the precision structure inside the equipment, reducing the service life and measurement accuracy of the equipment. Although the existing shock absorption technology can alleviate the impact of vibration to a certain extent, most of them can only provide a single-layer shock absorption effect, and have poor adaptability to high-intensity vibration environments, and it is difficult to meet the needs of modern industrial equipment for efficient shock absorption;

[0004] In addition, industrial measuring equipment usually needs to manually switch modes when performing static and dynamic measurements, which not only increases the complexity of operation, but also easily leads to measurement errors. The measuring equipment in the prior art often lacks flexibility when switching between static and dynamic modes, and it is difficult to ensure the accuracy and stability of measurements under different measurement conditions. Therefore, developing a device that can freely switch between static and dynamic measurement modes is of great significance to improving measurement efficiency and accuracy;

[0005] In industrial automation and precision manufacturing, the ability of equipment to clamp and adjust objects is also a key requirement. Most existing clamping devices rely on fixed fixtures, which are difficult to automatically adjust according to the shapes and sizes of different objects, resulting in poor operational flexibility and limited scope of application. Especially when handling objects of complex shapes and different sizes, the adaptability and efficiency of existing clamping devices are low, and they cannot meet the needs of efficient production. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a large-length dynamic calibration device based on synchronous measurement of a laser interferometer, which solves the problem of insufficient shock-absorbing and buffering capacity of the equipment.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a large-length dynamic calibration device based on synchronous measurement of a laser interferometer comprises a base, a support frame is arranged on the top of the base, a fixed block is fixedly connected to the top of the base and the bottom of the support frame, a docking block 1 is fixedly connected to one side of the fixed block, a docking block 2 is fixedly connected to one side of the fixed block, a rotating column is rotatably connected inside the docking block 2, a connecting rod is fixedly connected to the outer wall of the rotating column, one end of one connecting rod is rotatably connected to another connecting rod, and a slider is rotatably connected inside the connecting rod. A limiting block is arranged between the docking block 1, and a fixed frame is fixedly connected on both sides of the limiting block, the slider is slidably connected inside the fixed frame, a damper 1 is arranged inside the fixed frame, and the output end of the damper 1 is fixedly connected to one side of the slider, the docking block 1 is slidably connected inside the limiting block, a damper 2 is arranged on the top of the docking block 1 at the bottom, and the output end of the damper 2 is fixedly connected to the bottom of the docking block 1 at the top, a measuring component is arranged on the top of the support frame, a driving component is arranged on the top of the support frame, and a fixing component is arranged on the top of the support frame.

[0008] Preferably, the measuring component comprises a lifting platform, the lifting platform is arranged inside the supporting frame, a laser instrument is arranged on the top of the lifting platform, a beam splitter is arranged on one side of the laser instrument, and the beam splitter is arranged on the top of the lifting platform.

[0009] Preferably, the driving assembly comprises a limit frame, the limit frame is fixedly connected to the top of the support frame, a driving block is arranged inside the limit frame, and a threaded column 1 is fixedly connected to the output end of the driving block.

[0010] Preferably, the threaded column is rotatably connected to the interior of the limit frame, and the outer wall of the threaded column is threadedly connected to a slide plate.

[0011] Preferably, the fixing assembly comprises a support frame, the support frame is fixedly connected to the top of the skateboard, and a fixing ring is provided at one end of the support frame.

[0012] Preferably, the top of the fixing ring 1 is fixedly connected to the fixing ring 2, and the bottom of the fixing ring 1 is provided with a DC motor.

[0013] Preferably, a plurality of gears are rotatably connected inside the fixing ring 1, and a limiting ring is fixedly connected to the top of the fixing ring 1.

[0014] Preferably, a gear is fixedly connected to the output end of the DC motor, a gear ring is rotatably connected inside the second fixing ring, and the gear and the gear ring are meshed.

[0015] Preferably, a rack is slidably connected inside the limiting ring, and one side of the rack is meshed with a gear.

[0016] Preferably, a sliding frame is slidably connected inside the rack, a second threaded column is rotatably connected inside the sliding frame, the second threaded column is threadedly connected inside the rack, and a knob is fixedly connected to the outer wall of the second threaded column.

[0017] Working principle: When measurement is needed, first drive one of the gears to rotate through a DC motor, and then the gear drives the gear ring to rotate, thereby driving the other gears to rotate synchronously. At this time, the corresponding rack will also be pushed to the center position of the fixed ring one due to the meshing of the tooth marks, and the object placed at the center position of the fixed ring one will be clamped. According to the specific shape of the object, we can turn the knob to make the threaded column two rotate synchronously, so as to change the specific length of the rack through the sliding position of the sliding frame. When dynamic measurement is needed, the object can be clamped in the fixing mechanism at the top position of the corresponding slide. At this time, the threaded column one is driven to rotate by the driving block, so that the slide slides along the thread under the restriction of the limit frame, and synchronously drives the displacement of the object to be measured. When measuring static objects, the slide plate can remain stationary, so that a light beam can be emitted by the laser instrument and then split by the beam splitter, so as to perform measurement through calculation. In the measurement process, in order to maintain its stability, when the top of the equipment support frame is vibrated due to external factors, the distance between the support frame and the base changes. At this time, the distance between the corresponding fixed block and docking block 1 driven by the base and the support frame will decrease, and then the first shock absorption and buffering will be performed through the action of damper 2. Moreover, when the distance between the two fixed blocks and the docking block 1 is reduced, the inclination angle of the corresponding connecting rod will also change, so that the connecting rod can synchronously push the slider to slide under the restriction of the fixed frame, and then the second shock absorption and buffering will be performed through damper 1, so as to achieve a double shock absorption and buffering effect.

[0018] The invention provides a large-length dynamic calibration device based on synchronous measurement of a laser interferometer.

[0019] It has the following beneficial effects:

[0020] 1. The present invention successfully constructs a set of efficient double-layer shock-absorbing and buffering system through the cooperation between the docking block 1, the connecting rod and the limit block. Through this design, when the equipment is subjected to external vibration, the vibration energy can be absorbed and dissipated layer by layer through the multi-level buffer structure, which significantly reduces the impact of vibration on the internal structure and performance of the equipment. The double-layer shock-absorbing and buffering system not only improves the seismic resistance of the equipment, but also extends the service life of the equipment, ensuring that it remains stable and reliable in operation under high vibration environment.

[0021] 2. The present invention realizes the free switching of the device between static and dynamic measurement modes through the cooperation between the slide plate, the threaded column 1 and the limit frame. This design enables the slide plate to remain stationary during static measurement, thereby ensuring the stability and accuracy of the measurement results. During dynamic measurement, the drive block drives the threaded column 1 to rotate, and the slide plate slides along the limit frame, driving the object to be measured to move, thereby realizing high-precision measurement of the dynamic characteristics of the object. This flexible measurement mode greatly improves the adaptability and measurement accuracy of the device and meets various measurement requirements.

[0022] 3. The present invention achieves the effect that the device can freely adjust the clamping according to the specific shape of the object through the coordination between the gear ring, the rack and the gear. Through this process, the device can accurately adjust the clamping according to the shape and size of the object, which not only ensures the stability and reliability of the clamping process, but also greatly improves the operational flexibility and efficiency of the device in different application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A perspective view of the present invention;

[0024] Figure 2 It is a schematic diagram of the internal structure of the support frame of the present invention;

[0025] Figure 3 It is a schematic diagram of the shock absorbing structure of the present invention;

[0026] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0027] Figure 5 It is a three-dimensional diagram of the fixing assembly of the present invention;

[0028] Figure 6 for Figure 5 Enlarged view of point B in the middle.

[0029] Among them, 1. base; 2. support frame; 3. laser instrument; 4. beam splitter; 5. fixed block; 6. docking block 1; 7. connecting rod; 8. limit block; 9. fixed frame; 10. slider; 11. damper 1; 12. damper 2; 13. drive block; 14. threaded column 1; 15. slide plate; 16. limit frame; 17. lifting platform; 18. fixed ring 1; 19. DC motor; 20. gear; 21. limit ring; 22. gear ring; 23. rack; 24. slide frame; 25. threaded column 2; 26. knob; 27. fixed ring 2; 28. docking block 2; 29. ​​rotating column; 30. support frame. DETAILED DESCRIPTION

[0030] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Example:

[0032] Please refer to the attached Figure 2 -Attached Figure 4 The embodiment of the present invention provides a large-length dynamic calibration device based on synchronous measurement of a laser interferometer, including a base 1, a support frame 2 is arranged on the top of the base 1, a fixed block 5 is fixedly connected to the top of the base 1 and the bottom of the support frame 2, a docking block 1 6 is fixedly connected to one side of the fixed block 5, a docking block 2 28 is fixedly connected to one side of the fixed block 5, a rotating column 29 is rotatably connected inside the docking block 28, a connecting rod 7 is fixedly connected to the outer wall of the rotating column 29, one end of one connecting rod 7 is rotatably connected to another connecting rod 7, a slider 10 is rotatably connected inside the connecting rod 7, and the docking block 1 is fixedly connected to the other connecting rod 7. 6, a limit block 8 is arranged between the limit block 8, fixed frames 9 are fixedly connected on both sides of the limit block 8, sliders 10 are slidably connected inside the fixed frame 9, dampers 11 are arranged inside the fixed frame 9, output ends of dampers 11 are fixedly connected to one side of the slider 10, docking blocks 6 are slidably connected inside the limit block 8, damper 2 12 is arranged on the top of the bottom docking block 6, the output end of damper 2 12 is fixedly connected to the bottom of the top docking block 6, a measuring component is arranged on the top of the support frame 2, a driving component is arranged on the top of the support frame 2, and a fixing component is arranged on the top of the support frame 2.

[0033] Specifically, when the top of the equipment support frame 2 is vibrated due to external factors, the spacing between the support frame 2 and the base 1 will change. This change directly affects the relative distance between the fixed block 5 and the docking block 6 driven by the support frame 2 and the base 1 respectively. As the vibration continues, the spacing between these fixed blocks 5 and the docking block 6 gradually decreases, and the system starts the shock absorption mechanism. First, the reduced spacing triggers the damper 2 12 to achieve the first shock absorption buffer. The damper 2 12 plays a key role in this process. Through its damping characteristics, it converts vibration energy into heat energy or other forms of energy, thereby reducing the impact of vibration on the internal structure of the equipment. This preliminary shock absorption buffer effectively protects the core components of the equipment and reduces mechanical wear and performance degradation caused by vibration. At the same time, in the process of reducing the spacing between the fixed block 5 and the docking block 6, the inclination angle of the connecting rod 7 also changes. The change in the inclination angle of the connecting rod 7 is a precise mechanical process. It is not just a simple geometric change, but a crucial link in the entire shock absorption system. As the inclination angle of the connecting rod 7 changes, the connecting rod 7 begins to push the slide The block 10 slides under the restriction of the fixed frame 9; the sliding of the slider 10 further triggers the damper 11 to achieve the second shock absorption and buffering. The damper 11, as the second-level shock absorption device, complements the damper 2 12. Through the double buffering effect, the vibration energy is consumed and absorbed layer by layer. This double shock absorption and buffering design not only improves the shock absorption capacity of the entire system, but also significantly extends the service life of the equipment, ensuring stable operation in complex and harsh environments; the design concept of the double shock absorption and buffering system is to achieve more efficient vibration energy absorption and dispersion through a multi-level buffering structure. The first shock absorption and buffering is mainly aimed at large vibrations, and the energy is quickly absorbed by the damper 2 12 to reduce the impact directly transmitted to the core components of the equipment. The second shock absorption and buffering is carried out through the damper 11 to refine the absorption and further buffer the residual vibration to ensure that the vibration energy is completely dissipated. This double shock absorption and buffering system not only performs well in mechanical protection, but also has significant advantages in accuracy maintenance and performance stability. Through this design, the equipment can still maintain a highly precise operating state in a high vibration environment, ensuring the stability and reliability of measurement and operation.

[0034] Please refer to the attached Figure 1 The measuring component includes a lifting platform 17 , which is arranged inside the supporting frame 2 , a laser instrument 3 is arranged on the top of the lifting platform 17 , a beam splitter 4 is arranged on one side of the laser instrument 3 , and the beam splitter 4 is arranged on the top of the lifting platform 17 .

[0035] Specifically, by emitting a light beam through the laser 3, the system realizes the initial step of high-precision measurement. The light beam generated by the laser 3 is highly directional and stable, which provides a basic guarantee for the accuracy of the measurement. After the light beam is emitted, the light beam will pass through the beam splitter 4 to realize the splitting and multi-path propagation of the light beam. The function of the beam splitter 4 is to divide the original light beam into several independent light beams, each of which can be used for different measurement paths or purposes, and the lifting platform 17 can adjust the measurement height of the laser 3 and the beam splitter 4 according to the object to be measured.

[0036] Please refer to the attached Figure 1 The driving assembly includes a limit frame 16, which is fixedly connected to the top of the support frame 2. A driving block 13 is arranged inside the limit frame 16. A threaded column 14 is fixedly connected to the output end of the driving block 13. The threaded column 14 is rotatably connected to the inside of the limit frame 16, and a slide plate 15 is threadedly connected to the outer wall of the threaded column 14.

[0037] Specifically, the driving block 13 drives the threaded column 14 to rotate. During the rotation, the threaded column 14 precisely meshes with the threads on the slide 15, pushing the slide 15 to slide along a predetermined trajectory. In this process, the limit frame 16 plays an important guiding and limiting role, ensuring that the movement path of the slide 15 is accurate and does not deviate or get stuck. The smooth sliding of the slide 15 drives the object to be measured to move synchronously, so that the dynamic measurement process can proceed smoothly. When measuring static objects, the operation process is relatively simple. In this case, the slide 15 remains stationary, and the object to be measured is also fixed. In this state, the measuring device can perform static measurement on the object to obtain the required data. This static measurement mode is suitable for accurate analysis of the parameters of the object in a specific state to ensure the stability and consistency of the measurement results.

[0038] Please refer to the attached Figure 5 -Attached Figure 6 The fixing component includes a support frame 30, which is fixedly connected to the top of the slide plate 15, and a fixing ring 18 is arranged at one end of the support frame 30; a fixing ring 27 is fixedly connected to the top of the fixing ring 18, and a DC motor 19 is arranged at the bottom of the fixing ring 18. A plurality of gears 20 are rotatably connected inside the fixing ring 18, a limiting ring 21 is fixedly connected to the top of the fixing ring 18, and a gear 20 is fixedly connected to the output end of the DC motor 19, and a gear ring 22 is rotatably connected inside the fixing ring 27, and the gear 20 is meshed with the gear ring 22. A rack 23 is slidably connected inside the limiting ring 21, and one side of the rack 23 is meshed with the gear 20. A sliding frame 24 is slidably connected inside the rack 23, and a threaded column 25 is rotatably connected inside the sliding frame 24. The threaded column 25 is threadedly connected to the inside of the rack 23, and a knob 26 is fixedly connected to the outer wall of the threaded column 25.

[0039] Specifically, driven by the DC motor 19, the gear 20 starts to rotate, and then drives the gear ring 22 to rotate synchronously. The rotation of the gear ring 22 causes the other gears 20 meshing with it to rotate synchronously. This synchronization ensures the stability and efficiency of the entire transmission system. In this process, the precise meshing relationship between the gear 20 and the gear ring 22 is the key; as the gear 20 rotates, the rack 23 is also pushed to the center position of the fixed ring 18 due to its meshing with the tooth mark. This meshing mode ensures the smooth movement of the rack 23, avoids jamming and unnecessary friction loss, thereby improving the durability and reliability of the entire device. When the rack 23 moves to the center position of the fixed ring 18, the object placed at this position can be firmly clamped; this design not only makes the clamping process of the object more stable and efficient, but also significantly improves the degree of automation of the device. By accurately controlling the speed and direction of the DC motor 19, the clamping force and clamping position can be accurately adjusted to meet the needs of objects of different sizes and shapes. Overall, the system has significant effects in improving production efficiency, reducing manual intervention and improving product quality.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A large-length dynamic calibration device based on synchronous measurement of a laser interferometer, comprising a base (1), It is characterized in that A support frame (2) is arranged at the top of the base (1); a fixed block (5) is fixedly connected to the top of the base (1) and the bottom of the support frame (2); one side of the fixed block (5) is fixedly connected to a docking block (6); one side of the fixed block (5) is fixedly connected to a docking block (28); a rotating column (29) is rotatably connected inside the docking block (28); an outer wall of the rotating column (29) is fixedly connected to a connecting rod (7); one end of one connecting rod (7) is rotatably connected to another connecting rod (7); a sliding block (10) is rotatably connected inside the connecting rod (7); a limiting block (8) is arranged between the docking blocks (6); the limiting block (8) Both sides are fixedly connected with a fixed frame (9), the slider (10) is slidably connected inside the fixed frame (9), a damper (11) is arranged inside the fixed frame (9), the output end of the damper (11) is fixedly connected to one side of the slider (10), the docking block (6) is slidably connected inside the limit block (8), a damper (12) is arranged on the top of the docking block (6) at the bottom, the output end of the damper (12) is fixedly connected to the bottom of the docking block (6) at the top, a measuring component is arranged on the top of the support frame (2), a driving component is arranged on the top of the support frame (2), and a fixing component is arranged on the top of the support frame (2).

2. The large-length dynamic calibration device based on synchronous measurement of laser interferometer according to claim 1, It is characterized in that The measuring component comprises a lifting platform (17), the lifting platform (17) is arranged inside the supporting frame (2), a laser instrument (3) is arranged on the top of the lifting platform (17), a beam splitter (4) is arranged on one side of the laser instrument (3), and the beam splitter (4) is arranged on the top of the lifting platform (17).

3. The large-length dynamic calibration device based on laser interferometer synchronous measurement according to claim 1, It is characterized in that The driving assembly comprises a limit frame (16), the limit frame (16) is fixedly connected to the top of the support frame (2), a driving block (13) is arranged inside the limit frame (16), and a threaded column (14) is fixedly connected to the output end of the driving block (13).

4. The large-length dynamic calibration device based on laser interferometer synchronous measurement according to claim 3, It is characterized in that The threaded column 1 (14) is rotatably connected to the interior of the limit frame (16), and the outer wall of the threaded column 1 (14) is threadedly connected to a slide plate (15).

5. The large-length dynamic calibration device based on synchronous measurement of laser interferometer according to claim 4, It is characterized in that The fixing assembly comprises a support frame (30), the support frame (30) is fixedly connected to the top of the slide plate (15), and a fixing ring (18) is provided at one end of the support frame (30).

6. The large-length dynamic calibration device based on laser interferometer synchronous measurement according to claim 5, It is characterized in that The top of the fixing ring 1 (18) is fixedly connected to a fixing ring 2 (27), and the bottom of the fixing ring 1 (18) is provided with a DC motor (19).

7. The large-length dynamic calibration device based on laser interferometer synchronous measurement according to claim 5, It is characterized in that The fixing ring 1 (18) is internally rotatably connected with a plurality of gears (20), and the top of the fixing ring 1 (18) is fixedly connected with a limiting ring (21).

8. The large-length dynamic calibration device based on laser interferometer synchronous measurement according to claim 6, It is characterized in that A gear (20) is fixedly connected to the output end of the DC motor (19), a gear ring (22) is rotatably connected inside the second fixing ring (27), and the gear (20) and the gear ring (22) are meshed.

9. The large-length dynamic calibration device based on laser interferometer synchronous measurement according to claim 7, It is characterized in that A rack (23) is slidably connected inside the limiting ring (21), and one side of the rack (23) is meshed with the gear (20).

10. The large-length dynamic calibration device based on laser interferometer synchronous measurement according to claim 9, It is characterized in that The rack (23) is slidably connected to a sliding frame (24), the sliding frame (24) is rotatably connected to a second threaded column (25), the second threaded column (25) is threadedly connected to the rack (23), and the outer wall of the second threaded column (25) is fixedly connected to a knob (26).

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