Dynamic vibration absorber for OCT (Optical Coherence Tomography) appearance detection mechanism for lens

Abstract

The utility model relates to a dynamic vibration absorber for an OCT (optical coherence tomography) appearance detection mechanism for a lens, which is provided with a vibration absorption base and a mass block, a vibration absorption screw is erected on the vibration absorption base, a through groove is arranged on the mass block, the mass block is slidably arranged on the vibration absorption base through matching of the vibration absorption screw and the through groove, and vibration absorption gaskets are arranged on two sides of the mass block. Each vibration absorption gasket is arranged on the vibration absorption screw rod in a sleeving manner, a vibration absorption spring is arranged between each vibration absorption gasket and the mass block, each vibration absorption spring is arranged on the vibration absorption screw rod in a sleeving manner, the two ends of each vibration absorption spring act on the mass block and the vibration absorption gasket respectively, and an adjusting nut is arranged on the vibration absorption screw rod. The two vibration absorption gaskets are arranged between the two oppositely-arranged adjusting nuts, the vibration absorption gaskets are arranged between the vibration absorption springs and the adjusting nuts on the corresponding sides, and after the mass block is vibrated on the vibration absorption base, the vibration absorption springs reversely apply force to the mass block through continuous force application of the vibration absorption springs. The device is ingenious in structure, convenient and practical.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of OCT appearance detection for lenses, in particular to a power vibration absorber for OCT appearance detection mechanism for lenses. BACKGROUND

[0002] A lens is a transparent material with one or more curved surfaces made of optical materials such as glass or resin. Depending on the material, lenses can be mainly divided into glass lenses, resin lenses, PC lenses, etc. Lenses are transparent sheet-shaped objects used in optical instruments such as eyeglasses, microscopes, and telescopes. Their main function is to change the direction of light propagation to achieve the purpose of correcting vision, magnifying or reducing objects, etc.

[0003] After production, lenses need to be detected for their appearance. Usually, detection devices are used for detection. However, in the prior art, the detection device may be affected by the vibration of the motor during detection, which greatly affects the detection quality and detection effect. SUMMARY

[0004] The utility model discloses a power vibration absorber for OCT appearance detection mechanism for lenses, which is ingenious in structure and can greatly reduce the vibration generated during detection of the detection device, thereby ensuring the quality and efficiency of lens shooting and being efficient and convenient.

[0005] The technical scheme for achieving the utility model is as follows: the utility model has a vibration absorption base and a mass block arranged in the vibration absorption base. A vibration absorption screw is arranged on the vibration absorption base. The mass block is provided with a through slot through which the vibration absorption screw passes. The mass block is slidably arranged on the vibration absorption base through the cooperation of the vibration absorption screw and the through slot. Vibration absorption washers are arranged on both sides of the mass block. Each vibration absorption washer is coaxially arranged on the vibration absorption screw. Vibration absorption springs are arranged between each vibration absorption washer and the mass block. Each vibration absorption spring is arranged on the vibration absorption screw. The two ends of each vibration absorption spring act on the mass block and the vibration absorption washer, respectively. Adjusting nuts are arranged on the vibration absorption screw in a relative manner and threadedly cooperate with the vibration absorption screw. The two vibration absorption washers are arranged between the two adjusting nuts arranged in a relative manner. Each vibration absorption washer is arranged between the corresponding side vibration absorption spring and adjusting nut. After the vibration absorption base is vibrated, each vibration absorption spring exerts a reverse force on the mass block through its own continuous force.

[0006] Further, the vibration absorption screw is provided with positioning nuts arranged in a relative manner and threadedly cooperating with the vibration absorption screw. Each adjusting nut is arranged between each positioning nut. Each adjusting nut is arranged between the corresponding side vibration absorption washer and positioning nut. The vibration absorption screw is detachably fixedly installed on the vibration absorption base through the thread cooperation with each positioning nut.

[0007] Furthermore, the above-mentioned vibration-absorbing base is provided with placement grooves on both sides. The upper end of both the through groove and the placement groove is provided with an opening for the vibration-absorbing screw to be inserted. The vibration-absorbing base is provided with a bottom slide rail arranged parallel to the vibration-absorbing screw. The bottom of the mass block is fixedly provided with a bottom slider adapted to the bottom slide rail. The mass block is slidably arranged on the vibration-absorbing base through the cooperation of the bottom slider and the bottom slide rail.

[0008] Furthermore, counterweight plates are provided on the upper, front, and rear faces of the aforementioned mass block, and each counterweight plate is fixed to the mass block by a locking device.

[0009] Furthermore, the upper, front, and rear faces of the aforementioned mass block are provided with multiple threaded through holes, each threaded through hole is equipped with a locking screw, and each counterweight is provided with multiple parallel slots. The extension direction of each slot is parallel to the axis of the vibration-absorbing screw. One end of each slot is set on the counterweight, and the other end of each slot extends out of the counterweight along the axis of the vibration-absorbing screw.

[0010] This utility model has positive effects: (1) This utility model sets a vibration-absorbing screw on the vibration-absorbing base and a mass block on the vibration-absorbing screw. The fixed frequency of the power vibration absorber is designed to be close to the vibration frequency of the detection device. During the vibration of the detection device, the mass block will generate a large vibration displacement. During the movement of the mass block, each vibration-absorbing spring exerts a reverse force on the mass block, thereby offsetting the vibration energy generated by the detection device. The coordination of the adjusting nut and the vibration-absorbing pad can adjust the distance between the vibration-absorbing pad and the mass block and the sliding formation of the mass block according to the actual vibration situation. Through efficient vibration absorption and damping, the detection efficiency and detection quality of the detection device are greatly improved. The structure is ingenious, efficient and convenient.

[0011] (2) This utility model sets a positioning nut on the vibration-absorbing screw, and the positioning nut fits against the inner wall of the vibration-absorbing bracket through the thread engagement with the vibration-absorbing screw, thereby fixing the vibration-absorbing screw and the vibration-absorbing base, ensuring the tightness of the connection between the vibration-absorbing screw and the vibration-absorbing base, and also ensuring the stability of the vibration-absorbing screw on the vibration-absorbing base, which is efficient and convenient.

[0012] (3) This utility model sets a bottom slide rail on the vibration-absorbing base and a bottom slider on the mass block. The cooperation between the bottom slider and the bottom slide rail ensures the stability of the mass block during the sliding process. At the same time, the cooperation between the bottom slider and the bottom slide rail ensures that the thread on the vibration-absorbing screw is separated from the inner wall of the through groove, thereby avoiding the mass block from being obstructed during the movement and affecting the overall vibration absorption effect. It is convenient and practical.

[0013] (4) This utility model sets counterweight plates on the upper, front and rear faces of the mass block, and adjusts the vibration absorption direction and vibration absorption quality of the entire dynamic vibration absorber by installing the counterweight plates and the mass block, which is convenient and practical.

[0014] (5) This utility model has multiple slots on the upper counterweight plate. The front-back or left-right position of the counterweight plate on the upper end face of the mass block can be adjusted by the cooperation of each locking screw and the threaded through hole. At the same time, the up-down and left-right positions of each counterweight plate on the front and rear faces of the mass block can also be adjusted, so as to be suitable for various vibration directions and vibration frequencies. It has good adjustability and applicability, and the structure is ingenious, convenient and practical. Attached Figure Description

[0015] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein...

[0016] Fig. 1 This is a schematic diagram of the overall structure of the dynamic vibration absorber for the OCT appearance inspection mechanism of lenses in this utility model;

[0017] Fig. 2 This is a schematic diagram of the connection structure between the vibration-absorbing base, the bottom slider, and the bottom slide rail in this utility model;

[0018] Fig. 3 This is a schematic diagram of the overall structure of the mass block in this utility model;

[0019] Fig. 4 This is a schematic diagram of the overall structure of the counterweight plate in this utility model. Detailed Implementation

[0020] See Figs. 1 to 4This utility model includes a vibration-absorbing base 1 and a mass block 2 disposed within the vibration-absorbing base 1. A vibration-absorbing screw 3 is mounted on the vibration-absorbing base 1. The mass block 2 has a through groove 23 through which the vibration-absorbing screw 3 passes. The mass block 2 is slidably disposed on the vibration-absorbing base 1 through the cooperation of the vibration-absorbing screw 3 and the through groove 23. Vibration-absorbing pads 5 are provided on both sides of the mass block 2. Each vibration-absorbing pad 5 is sleeved on the vibration-absorbing screw 3 and coaxially arranged with it. A vibration-absorbing spring 4 is provided between each vibration-absorbing pad 5 and the mass block 2. The vibration-absorbing springs 4 are all sleeved on the vibration-absorbing screw 3. The two ends of each vibration-absorbing spring 4 act on the mass block 2 and the vibration-absorbing pad 5 respectively. The vibration-absorbing screw 3 is provided with adjusting nuts 6 that are opposite to each other and threaded with the vibration-absorbing screw 3. Two vibration-absorbing pads 5 are arranged between the two opposite adjusting nuts 6. Each vibration-absorbing pad 5 is arranged between the vibration-absorbing spring 4 and the adjusting nut 6 on the corresponding side. After the mass block 2 is vibrated by the vibration-absorbing base 1, each vibration-absorbing spring 4 applies a reverse force to the mass block 2 through its own continuous force.

[0021] The vibration-absorbing screw 3 is provided with positioning nuts 7 that are oppositely arranged and can be threadedly engaged with the vibration-absorbing screw 3. Each adjusting nut 6 is arranged between each positioning nut 7. Each adjusting nut 6 is arranged between the vibration-absorbing pad 5 and the positioning nut 7 on the corresponding side. The vibration-absorbing screw 3 is detachably fixedly installed on the vibration-absorbing base 1 through the threaded engagement with each positioning nut 7.

[0022] The vibration-absorbing base 1 has placement grooves 12 on both sides. The upper ends of the through groove 23 and the placement groove 12 are provided with openings for the vibration-absorbing screw 3 to be inserted. The vibration-absorbing base 1 is provided with a bottom slide rail 11 arranged parallel to the vibration-absorbing screw 3. The bottom of the mass block 2 is fixedly provided with a bottom slider 21 adapted to the bottom slide rail 11. The mass block 2 is slidably arranged on the vibration-absorbing base 1 through the cooperation of the bottom slider 21 and the bottom slide rail 11.

[0023] The upper, front, and rear faces of the mass block 2 are each equipped with a counterweight plate 8, and each counterweight plate 8 is fixed to the mass block 2 by a locking device.

[0024] The upper, front, and rear faces of the mass block 2 are provided with multiple threaded through holes 22, each threaded through hole 22 is equipped with a locking screw 9, and each counterweight plate 8 is provided with multiple parallel slots 81. The extension direction of each slot 81 is parallel to the axis of the vibration-absorbing screw 3. One end of each slot 81 is set on the counterweight plate 8, and the other end of each slot 81 extends out of the counterweight plate 8 along the axis of the vibration-absorbing screw 3.

[0025] The working principle of this utility model is as follows: In the process of using this utility model, the mass block 2 is first fixed to the bottom slider 21 by the locking member. Then, the vibrating screw is placed into the placement groove 12 on the vibration absorption base 1 and the through groove 23 on the mass block 2. The positioning nut 7 is fixed to the vibration absorption base 1 by the thread engagement with the vibrating screw. The adjusting nut 6 adjusts the distance between the vibration absorption pad 5 and the mass block 2 by the thread engagement with the vibration absorption screw 3. Then, the vibration absorption base 1 is installed on the vibration end of the detection device. According to the vibration direction of the vibration end, the counterweight 8 is installed on the upper end face and / or the front end face and / or the rear end face of the mass block 2. Multiple slots 81 are set on the counterweight 8. The vertical displacement or horizontal position of the counterweight 8 can be adjusted according to the specific vibration direction to adapt to the vibration in various directions on the detection device.

[0026] During the vibration absorption process, the reaction force generated by the dynamic vibration absorber when resonating with the detection device is used to reduce the vibration of the detection device. When the detection device vibrates, it drives the mass block 2 to vibrate together. The fixed frequency of the dynamic vibration absorber is set to be close to the vibration frequency of the detection device. When the mass block 2 produces a large vibration displacement, it applies a reverse force to the detection device under the action of the vibration absorption spring 4, thereby offsetting the vibration energy of the detection device and achieving the purpose of reducing vibration. This greatly reduces the vibration generated by the detection device during the detection process and greatly improves the detection quality and detection effect. The structure is ingenious, efficient and convenient.

[0027] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A power absorber for an OCT appearance inspection mechanism for lenses, characterized by: The application discloses a vibration absorbing base and a mass block arranged in the vibration absorbing base, wherein the vibration absorbing base is arranged with a vibration absorbing screw, the mass block is provided with a through slot for the vibration absorbing screw to pass through, the mass block is arranged on the vibration absorbing base through cooperation of the vibration absorbing screw and the through slot, vibration absorbing gaskets are arranged on both sides of the mass block, each vibration absorbing gasket is arranged on the vibration absorbing screw in a sleeving mode and coaxially with the vibration absorbing screw, a vibration absorbing spring is arranged between each vibration absorbing gasket and the mass block, each vibration absorbing spring is arranged on the vibration absorbing screw in a sleeving mode, and both ends of each vibration absorbing spring are arranged on the mass block and the vibration absorbing gasket respectively.

2. The power absorber for the OCT appearance inspection mechanism for lenses according to claim 1, characterized by: The vibration absorbing screw is provided with positioning nuts arranged oppositely and capable of being threadedly connected with the vibration absorbing screw, each positioning nut is arranged between two adjusting nuts, and each adjusting nut is arranged between the vibration absorbing gasket on the corresponding side and the positioning nut.

3. The power absorber for the OCT appearance inspection mechanism for lenses according to claim 1, characterized by: The vibration absorbing base is provided with placing grooves on both sides, the through slot and the placing grooves are provided with openings for the vibration absorbing screw to be arranged in, the vibration absorbing base is provided with a bottom sliding rail arranged in parallel with the vibration absorbing screw, the mass block is fixed with a bottom sliding block matched with the bottom sliding rail, and the mass block is arranged on the vibration absorbing base through cooperation of the bottom sliding block and the bottom sliding rail.

4. The power absorber for the OCT appearance inspection mechanism for lenses according to claim 1, characterized by: The upper end face, the front end face and the rear end face of the mass block are provided with counterweight pieces, and each counterweight piece is fixed to the mass block through a locking piece.

5. The power absorber for the OCT appearance inspection mechanism for lenses according to claim 4, characterized by: The upper end face, the front end face and the rear end face of the mass block are provided with a plurality of threaded holes, each threaded hole is provided with a locking screw, each counterweight piece is provided with a plurality of insertion grooves arranged in parallel, the extension direction of each insertion groove is arranged in parallel with the axis of the vibration absorbing screw, one end of each insertion groove is arranged on the counterweight piece, and the other end of each insertion groove extends out of the counterweight piece along the axial direction of the vibration absorbing screw.

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