Optical detection optical path automatic alignment mechanism

Abstract

The utility model provides an optical detection optical path automatic alignment mechanism, which relates to the field of optical testing and comprises a bottom plate, a photoelectric position sensor, a target and a barrel are respectively fixed at the top of the bottom plate, a sliding rod is slidably connected in the barrel, the top end of the sliding rod slidably penetrates through the top end of the barrel, and a pneumatic clamping jaw is fixed at the top end of the sliding rod. A limiting assembly used for locking the sliding rod is arranged on the cylinder body, and two adjusting assemblies are arranged on the top of the bottom plate. By arranging the photoelectric position sensor, the target and the adjusting assembly, the two voice coil motors can quickly respond according to monitoring data of the photoelectric position sensor, so that the two fast reflecting mirrors simultaneously follow and respectively perform height swing at a small angle and change the angles of the reflecting surfaces of the fast reflecting mirrors, and the deviated light can be reflected back to a preset path again; therefore, the functions of automatic alignment and collimation of the optical path of the optical element are realized, and subsequent optical detection can be smoothly and effectively carried out.

Description

TECHNICAL FIELD

[0001] The utility model relates to optical testing field especially relates to a kind of optical detection light path automatic alignment mechanism. BACKGROUND

[0002] When light interacts with the object to be detected, it will produce various optical phenomena such as reflection, refraction, scattering, interference and diffraction according to the different properties of the object, such as surface roughness, internal structure and optical parameters. By specially designed optical system to collect these changed light signals, and with the help of photoelectric detector to convert it into electrical signal, and then using computer algorithm or professional analysis instrument to deeply process the electrical signal, the information of the detected object can be accurately obtained, such as the size precision of parts in industrial production, the defect of optical elements, and the morphological structure of cell tissue in biomedical field. Optical detection plays a key role in many industries and provides strong support for product quality control and scientific research.

[0003] Currently, when detecting optical elements, the light beam emitted by the optical elements needs to be collimated first. If the light beam cannot be collimated, it will affect the subsequent detection results and bring large errors. Therefore, the optical detection light path automatic alignment mechanism is proposed to align the light beam to the target. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at solving the problem that there is no mechanism to collimate the light beam emitted by the optical elements when detecting the optical elements, and the alignment is difficult.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: an optical detection light path automatic alignment mechanism, comprising a bottom plate, the top of the bottom plate is respectively fixed with a photoelectric position sensor, a target and a cylinder, a sliding rod is slidably connected in the cylinder, the top end of the sliding rod slidably penetrates the top end of the cylinder and is fixed with a pneumatic gripper, a limiting assembly is arranged on the cylinder to lock the sliding rod, and two adjusting assemblies are respectively arranged on the top of the bottom plate; the adjusting assembly comprises a voice coil motor and a quick mirror, and the voice coil motor is fixed on the top of the bottom plate through a support.

[0006] Preferably, the quick mirror is fixed on the mounting seat of the voice coil motor, and the two adjusting assemblies are inclined on the bottom plate, and the two quick mirrors are opposite.

[0007] Preferably, the limiting assembly comprises two sliding grooves symmetrically arranged on the surface of the cylinder, a circular plate is slidably connected in the cylinder, and the circular plate is fixed on the bottom end of the sliding rod.

[0008] Preferably, a square block is fixed on the surface wall of the circular plate, the square block is slidably connected in one of the sliding grooves, and the square block is matched with the sliding groove.

[0009] Preferably, the surface wall of the circular plate is fixed with a screw rod, the screw rod is slidingly connected in another sliding groove, and one end of the screw rod is fixed with a fastener through screw connection.

[0010] Preferably, the fastener is fixed with a rubber pad close to a surface of the cylinder, and is in close contact with the surface of the cylinder.

[0011] Preferably, a reference plate is arranged between the photoelectric position sensor and the pneumatic clamping jaw, one end of the bottom of the reference plate is rotatably connected to the top of the bottom plate through a pin shaft, the top of the bottom plate is fixed with a clamping piece, the other end of the bottom of the reference plate is clamped with the clamping piece, and the top end of the reference plate is provided with a positioning point.

[0012] Compared with the prior art, the utility model has the advantages and positive effects that,

[0013] 1、In the utility model, through setting photoelectric position sensor, target and adjustment assembly, two audio frequency range motors can respond quickly according to the monitoring data of photoelectric position sensor to make two fast reflecting mirrors follow simultaneously, carry out small angle height swing respectively, change the reflection surface angle of itself, make the light rays of deviation can be reflected back to the preset path, thereby realizing the function of optical element light path automatic alignment, accurate value, make the subsequent optical detection can be carried out smoothly and effectively.

[0014] 2、In the utility model, the optical element needing detection is clamped and fixed by pneumatic clamping jaw, sets up cylinder, slide rod, limiting component, reference plate and positioning point, can according to the different specifications of optical element before detection, cooperates the positioning point on the reference plate to adjust the locking height of optical element correspondingly, makes the light beam of optical element emission can enter the detection path smoothly, thereby improves the flexibility of automatic alignment mechanism use. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a perspective view of the whole structure reference plate of the optical detection light path automatic alignment mechanism proposed in the utility model;

[0016] Figure 2 It is a perspective view of the whole structure reference plate of the optical detection light path automatic alignment mechanism proposed in the utility model;

[0017] Figure 3 It is a perspective view of the A out amplification structure of the optical detection light path automatic alignment mechanism proposed in the utility model;

[0018] Figure 4 It is a perspective view of the cylinder part of the optical detection light path automatic alignment mechanism proposed in the utility model and the structure of separating from the slide rod.

[0019] Legend: 1. Base plate; 2. Photoelectric position sensor; 3. Target; 4. Cylinder; 5. Slide rod; 6. Pneumatic gripper; 7. Limiting component; 701. Slide groove; 702. Circular plate; 703. Square block; 704. Screw; 705. Fastener; 8. Adjustment component; 801. Voice coil motor; 802. Quick-reflecting mirror; 9. Reference plate; 10. Clamping component; 11. Positioning point. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Example 1: As Figures 1-4 As shown, this utility model provides an automatic alignment mechanism for an optical detection path, including a base plate 1. A photoelectric position sensor 2, a target 3, and a cylinder 4 are fixed on the top of the base plate 1. A slide rod 5 is slidably connected inside the cylinder 4. The top end of the slide rod 5 slides through the top end of the cylinder 4 and is fixed with a pneumatic gripper 6. A limiting component 7 for locking the slide rod 5 is provided on the cylinder 4. Two adjustment components 8 are respectively provided on the top of the base plate 1. The adjustment component 8 includes a voice coil motor 801 and a quick-reflecting mirror 802. The voice coil motor 801 is fixed to the top of the base plate 1 by a bracket.

[0023] The overall effect of embodiment 1 is that the pneumatic gripper 6 can clamp and fix the optical element to be detected on it, and the limiting component 7 can adjust the position of the installed optical element by adjusting the height of the pneumatic gripper 6, so that the light beam of the optical element can be detected by the photoelectric position sensor 2. The voice coil motor 801 can respond quickly according to the monitoring data of the photoelectric position sensor 2, so that the two fast reflectors 802 follow at the same time and swing at a small angle. The two fast reflectors 802 change their own reflective surface angle, so that the deflected light can be reflected back to the preset path.

[0024] Example 2: Figures 1-4As shown, the fast reflecting mirror 802 is fixed on the mounting seat of the voice coil motor 801, the two adjusting assemblies 8 are inclined on the bottom plate 1, and the two fast reflecting mirrors 802 are opposite; the limiting assembly 7 comprises two sliding grooves 701 symmetrically formed on the surface of the cylinder 4, a circular plate 702 matched with the cylinder 4 is slidably connected in the cylinder 4, and the circular plate 702 is fixed at the bottom end of the sliding rod 5; a square block 703 is fixed on the surface wall of the circular plate 702, the square block 703 is slidably connected in one of the sliding grooves 701, and the square block 703 is matched with the sliding groove 701; a screw rod 704 is fixed on the surface wall of the circular plate 702, the screw rod 704 is slidably connected in the other sliding groove 701, one end of the screw rod 704 is threadedly connected with a fastener 705; a rubber pad is fixed on the surface of the fastener 705 close to the cylinder 4 and is in close contact with the surface of the cylinder 4; a reference plate 9 is arranged between the photoelectric position sensor 2 and the pneumatic clamping jaw 6, one end of the bottom of the reference plate 9 is rotatably connected to the top of the bottom plate 1 through a pin shaft, the top of the bottom plate 1 is fixed with a clamping piece 10, the other end of the bottom of the reference plate 9 is clamped with the clamping piece 10, and the top end of the reference plate 9 is provided with a positioning point 11.

[0025] The effect of the whole embodiment 2 is that the two adjusting assemblies 8 are opposite and inclined, so that the light reflected by one of the fast reflecting mirrors 802 can be received and reflected by the other fast reflecting mirror 802, the circular plate 702 is used to avoid the disconnection between the sliding rod 5 and the cylinder 4 during the up-down movement of the sliding rod 5, the square block 703 matched with the sliding groove 701 can limit the sliding rod 5, so that the sliding rod 5 can only move up and down, the fastener 705 matched with the screw rod 704 can realize the position locking of the optical element by locking the sliding rod 5, the positioning point 11 and the center of the detection of the photoelectric position sensor 2 are on the same axis, which provides a reference for the adjustment of the optical element by personnel, and the reference plate 9 can be hidden when the optical path is automatically aligned.

[0026] Working principle: when the personnel need to detect the optical element, the element light beam needs to be collimated first, the optical element is clamped and fixed on the pneumatic jaw 6 by operating the pneumatic jaw 6, then the optical element emitting light beam is opened, the personnel cooperate with the positioning point 11 on the reference plate 9 to observe the light beam, judge whether the optical element light beam is shot into the monitoring place of the photoelectric position sensor 2, if the light beam is not aligned with the monitoring place of the photoelectric position sensor 2, the personnel need to adjust the up-down position of the pneumatic jaw 6 to make the light beam aligned, at this time the personnel rotate the fastener 705, make the fastener 705 move away from the direction of the cylinder 4, until the fastener 705 is out of close contact with the surface of the cylinder 4, at this time the slide rod 5 can move up and down in the cylinder 4, the personnel cooperate with the positioning point 11 to make the slide rod 5 move up and down accordingly, until the point where the optical element light beam hits on the reference plate 9 coincides with the positioning point 11, stop the movement of the slide rod 5, and keep this height, then the personnel rotate the fastener 705 again, make the fastener 705 move reversely, until the fastener 705 is in close contact with the cylinder 4 again, the height of the slide rod 5 can be locked again, after the light beam calibration, the personnel can operate the reference plate 9, make the reference plate 9 rotate 90 degrees clockwise, out of engagement with the clamping part 10, contact with the top of the bottom plate 1, the reference plate 9 can be hidden below the photoelectric position sensor 2, so that the light beam can irradiate to the monitoring place of the photoelectric position sensor 2, the light beam passing through the monitoring place of the photoelectric position sensor 2 can be continuously monitored by the photoelectric position sensor 2, and the position change of the light beam point is fed back to the control assembly in real time, when the light path deviates, the control assembly first calculates the required light path adjustment amount according to the preset reference light path parameter and the light deviation information collected by the photoelectric position sensor 2, then sends accurate driving instructions to the two voice coil motors 801 respectively, the mover of the voice coil motor 801 generates accurate displacement under the action of the electromagnetic field, drives the fast mirror 802 to swing at a high speed with a small angle, the two fast mirrors 802 cooperate to change the angle of the reflection surface, and the deviated light is reflected back to the preset path, so that the light beam point can irradiate on the target center of the target 3, thereby completing the collimation of the light beam.

[0027] The wiring diagram of the photoelectric position sensor 2, the pneumatic jaw 6 and the voice coil motor 801 in the utility model belongs to the public knowledge in the field, and its working principle is a known technology, and the model is selected according to actual use, so the control mode and wiring arrangement of the photoelectric position sensor 2, the pneumatic jaw 6 and the voice coil motor 801 are not explained in detail, and the problems in the above background are solved.

[0028] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in other forms, and any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields with equivalent changes, but any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application without departing from the technical scheme of the present application still falls within the protection scope of the present application.

Claims

1. An optical detection optical path automatic alignment mechanism, characterized in that: The utility model provides a kind of position sensor, including bottom plate (1), the top of the bottom plate (1) is fixed with photoelectric position sensor (2), target (3) and cylinder (4) respectively, sliding connection is connected with slide bar (5) in the cylinder (4), the top end of the slide bar (5) slidingly penetrates the top end of cylinder (4) and is fixed with pneumatic gripper (6), limiting assembly (7) for locking slide bar (5) is provided on the cylinder (4), the top of the bottom plate (1) is provided with two adjusting assembly (8) respectively. The adjusting assembly (8) includes voice coil motor (801) and fast mirror (802), the voice coil motor (801) is fixed on the top of bottom plate (1) by support.

2. The optical detection optical path automatic alignment mechanism according to claim 1, wherein: The fast mirror (802) is fixed on the mounting seat of voice coil motor (801), and the two adjusting assemblies (8) are inclined on the bottom plate (1), and the two fast mirrors (802) are opposite.

3. The optical detection optical path automatic alignment mechanism according to claim 1, wherein: The limiting assembly (7) includes two sliding grooves (701) symmetrically opened on the surface of the cylinder (4), and a circular plate (702) is slidably connected in the cylinder (4) and matched with the cylinder (4).

4. The optical detection optical path automatic alignment mechanism according to claim 3, wherein: The surface wall of the circular plate (702) is fixed with a square block (703), the square block (703) is slidably connected in one of the sliding grooves (701), and the square block (703) is matched with the sliding groove (701).

5. The optical detection optical path automatic alignment mechanism according to claim 3, wherein: The surface wall of the circular plate (702) is fixed with a screw (704), the screw (704) is slidably connected in the other sliding groove (701), and one end of the screw (704) is threadedly connected with a fastener (705).

6. The optical detection optical path automatic alignment mechanism according to claim 5, wherein: The fastener (705) is fixed with a rubber pad close to one surface of the cylinder (4), and is in close contact with the surface of the cylinder (4).

7. The optical detection optical path automatic alignment mechanism according to claim 1, wherein: A reference plate (9) is arranged between the photoelectric position sensor (2) and the pneumatic gripper (6), one end of the bottom of the reference plate (9) is rotatably connected to the top of the bottom plate (1) by a pin shaft, a clamping piece (10) is fixed on the top of the bottom plate (1), the other end of the bottom of the reference plate (9) is clamped with the clamping piece (10), and a positioning point (11) is arranged on the top end of the reference plate (9).

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