Optical axis calibrator

Abstract

The utility model provides an optical axis calibrator which comprises an upper clamp and a lower clamp, a buffer unit is arranged at the bottom of the lower clamp, the buffer unit is used for being connected with an adjusting mechanism, and the adjusting mechanism is used for adjusting the angle and the horizontal position of the lower clamp and the buffer unit. The buffer unit comprises an outer cylinder, a spring and a stop lever, the outer cylinder is fixedly mounted on the lower clamp, the stop lever extends into the outer cylinder and is in sliding fit with the outer cylinder, a limiting part is arranged on the stop lever located in the outer cylinder, the spring is located in the outer cylinder and sleeves the stop lever, the upper end of the spring is connected with the lower clamp, and the lower end of the spring is in contact with the limiting part; a moving space is formed between the upper end of the stop lever and the lower clamp, the lower end of the stop lever is connected with an adjusting mechanism, the upper clamp is connected with a driving unit, and the driving unit is used for driving the upper clamp to be close to or away from the lower clamp. The calibration device is mainly used for realizing calibration of the sensing assembly and the lens assembly in actual use, and can solve the technical problem of collision during contact bonding.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of optical axis calibration equipment technical field, specifically a kind of optical axis calibrator. BACKGROUND

[0002] Before camera is shipped, in order to guarantee the quality of shooting, its optical axis will be calibrated.Optical axis calibration generally includes tilt calibration and offset calibration, tilt calibration refers to correcting the tilt of the center optical axis of lens, so that the center optical axis of lens is perpendicular to the photosensitive surface of sensor, and offset calibration refers to correcting the offset of the center optical axis of lens, so that the center optical axis of lens is aligned with the photosensitive center of sensor.

[0003] The utility model discloses a camera optical axis calibration jig with the publication number CN215823543U, comprising: an upper clamp for clamping a lens assembly of the camera; a lower clamp for bearing a sensor assembly of the camera; the upper clamp and the lower clamp are arranged oppositely and connected by a plurality of height adjustment devices, and the plurality of height adjustment devices are arranged around the peripheral of the center optical axis of the camera; the camera optical axis calibration jig has low cost.

[0004] However, in actual use, it is found that when the sensor assembly and the lens assembly are bonded, collision is easy to occur, which can cause damage to the components. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing an optical axis calibrator, which is mainly used for calibrating the sensor assembly and the lens assembly in actual use, and can solve the technical problem of collision during contact bonding.

[0006] To solve the above technical problems, the utility model adopts the technical scheme of:

[0007] An optical axis calibrator, comprising an upper clamp and a lower clamp, the lower clamp is provided with a buffer unit at the bottom, the buffer unit is used for connecting with an adjusting mechanism, and the adjusting mechanism is used for adjusting the angle and horizontal position of the lower clamp and the buffer unit.

[0008] The buffer unit comprises an outer cylinder, a spring and a stop rod, the outer cylinder is fixedly installed on the lower clamp, the stop rod extends into the outer cylinder and is in sliding cooperation with the outer cylinder, a limiting portion is arranged on the stop rod inside the outer cylinder, the spring is located in the outer cylinder and is sleeved on the stop rod, the upper end of the spring is connected with the lower clamp, and the lower end is in contact with the limiting portion.

[0009] The upper end of the stop rod and the lower clamp have a moving space, the lower end of the stop rod is used for connecting with the adjusting mechanism, the upper clamp is used for connecting with a driving unit, and the driving unit is used for driving the upper clamp to approach or move away from the lower clamp.

[0010] The lower clamp is provided with a positioning groove.

[0011] Further, a sliding sleeve or a linear bearing is arranged between the blocking rod and the outer cylinder.

[0012] Preferably, the driving unit comprises a mounting plate and a driving mechanism, the mounting plate is arranged on the equipment rack, the upper clamp is slidingly arranged on the mounting plate, and the driving mechanism is arranged on the mounting plate and is used to drive the upper clamp to move.

[0013] Further, a through slot is arranged on the mounting plate, an extension plate is arranged on the upper clamp, the extension plate passes through the through slot and is slidingly connected with the through slot, and the extension plate is connected with the driving mechanism.

[0014] Preferably, the upper clamp is slidingly arranged on the mounting plate through the sliding assembly.

[0015] Further, the sliding assembly comprises a sliding block and a sliding rail, the sliding rail is fixedly arranged on the mounting plate, and the sliding block is connected with the mounting plate and is slidingly matched with the sliding rail.

[0016] Preferably, a circular ring is arranged at the lower end of the upper clamp, the end of the circular ring is lower than the height of the end face of the lens assembly clamped by the upper clamp, and a UV lamp strip is arranged on the inner wall of the circular ring.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] In actual use, the lower clamp is arranged to bear the sensing assembly, the upper clamp is arranged to clamp and fix the lens assembly, the angle and the horizontal position of the lower clamp and the buffer unit are adjusted through the adjusting mechanism, and then the position adjustment of the lens assembly and the sensing assembly is realized. After the position adjustment is correct, the driving unit is arranged to drive the upper clamp to be close to the lower clamp, so that the bonding of the sensing assembly and the lens assembly after calibration is realized. At this time, the buffer effect is realized under the action of the buffer unit, the collision damage of the lens assembly and the sensing assembly is avoided, and the pre-tightening force is improved during the bonding process, so that the bonding effect of the lens assembly and the sensing assembly is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will be briefly introduced the drawings needed to be used in the embodiments, it should be understood, the following drawings only shows some embodiments of the utility model, therefore should not be regarded as the limitation to the range, for the ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other related drawings according to these drawings.

[0020] Fig. 1 It is a whole structure schematic diagram of the utility model.

[0021] Fig. 2The utility model discloses a buffer unit and the connection of lower clamp schematic diagram.

[0022] Fig. 3 The utility model discloses use state schematic diagram.

[0023] Reference signs:

[0024] 101 upper clamp, 102 lower clamp, 103 buffer unit, 104 outer tube, 105 spring, 106 stop rod, 107 limiting portion, 108 sensing assembly, 109 lens assembly, 110 positioning groove, 111 linear bearing, 112 mounting plate, 113 driving mechanism, 114 through slot, 115 sliding assembly. DETAILED DESCRIPTION

[0025] In the following, only certain exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the embodiments of the utility model. Therefore, the drawings and the description are considered to be exemplary in nature rather than limiting.

[0026] In the description of the embodiments of the utility model, it is understood that the orientation or positional relationship indicated by the terms "length", "vertical", "horizontal", "top", "bottom" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the utility model.

[0027] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0028] In the embodiments of the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected, or it can be communicated; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the embodiments of the utility model can be understood according to the specific circumstances.

[0029] In the embodiments of the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can include that the first and second features are in direct contact, or can include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "on the surface of" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "under" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0030] The following disclosure provides many different embodiments or examples for implementing different structures of the embodiments of the present application. In order to simplify the disclosure of the embodiments of the present application, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present application. In addition, the embodiments of the present application can repeatedly refer to numbers and / or letters in different examples, and such repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed.

[0031] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0032] Referring to Figs. 1-3 The embodiments disclose a calibration device, specifically an optical axis calibrator, which comprises an upper clamp 101 and a lower clamp 102, and the bottom of the lower clamp 102 is provided with a buffer unit 103, the buffer unit 103 is used to be connected with an adjusting mechanism, and the adjusting mechanism is used to adjust the angle and horizontal position of the lower clamp 102 and the buffer unit 103.

[0033] The buffer unit 103 comprises an outer cylinder 104, a spring 105 and a stop rod 106, the outer cylinder 104 is fixedly installed on the lower clamp 102, the stop rod 106 extends into the outer cylinder 104 and is in sliding fit with the outer cylinder 104, a limiting portion 107 is arranged on the stop rod 106 in the outer cylinder 104, the spring 105 is located in the outer cylinder 104 and is sleeved on the stop rod 106, the upper end of the spring 105 is connected with the lower clamp 102, and the lower end is in contact with the limiting portion 107.

[0034] The upper end of the stop rod 106 and the lower clamp 102 have a moving space, the lower end of the stop rod 106 is used to be connected with the adjusting mechanism, the upper clamp 101 is used to be connected with a driving unit, and the driving unit is used to drive the upper clamp 101 to move close to or away from the lower clamp 102.

[0035] In the present application, the adjusting mechanism can adopt the adjusting table in the prior art, which can realize the adjustment of the inclination angle and the horizontal position, and the structure is not described here.

[0036] The utility model discloses in actual use through the lower clamp 102 of setting bears the sensing assembly 108, and the upper clamp 101 clamps the fixed lens assembly 109, is adjusted the angle and horizontal position of lower clamp 102 and buffer unit 103 through adjusting mechanism, and then realizes the adjustment of lens assembly 109 and sensing assembly 108 position. After position adjustment is correct, through the drive unit of setting, drive upper clamp 101 close to lower clamp 102 realizes the bonding of sensing assembly 108 and lens assembly 109 after calibration. At this time under the effect of buffer unit 103, can play effective buffering effect, avoid the situation that lens assembly 109 and sensing assembly 108 are damaged by collision, can also play the role of improving the pre-tightening force in the bonding process, to guarantee the bonding effect of lens assembly 109 and sensing assembly 108.

[0037] Among them, the lower clamp 102 is provided with positioning slot 110. Through the positioning slot 110 of setting, the positioning of sensing assembly 108 can be realized.

[0038] Further, the outer tube 104 between the stop rod 106 and the sleeve or linear bearing 111 is provided. By setting the sleeve or linear bearing 111, the stop rod 106 can be more stable when moving, and the wear is reduced.

[0039] Among them, the drive unit includes mounting plate 112 and drive mechanism 113, and the mounting plate 112 is used for fixedly setting on the equipment rack, and the upper clamp 101 is slidably installed on the mounting plate 112, and the drive mechanism 113 is arranged on the mounting plate 112 and is used for driving the upper clamp 101 to move. The drive mechanism 113 is arranged to drive the upper clamp 101 to move.

[0040] The drive mechanism 113 can adopt a lead screw drive mechanism 113, or a telescopic rod, such as a pneumatic telescopic rod, a hydraulic telescopic rod or an electric telescopic rod.

[0041] In actual use, the upper clamp 101 is mainly used for clamping and fixing the lens assembly 109, and the lower clamp 102 is mainly used for positioning and fixing the sensing assembly 108. The fixing of the lens assembly 109 and the sensing assembly 108 can adopt the structure in the prior art, which will not be described here.

[0042] Among them, the mounting plate 112 is provided with a through slot 114, and the upper clamp 101 is provided with an extension plate, the extension plate passes through the through slot 114 and is slidably connected with the through slot 114; the extension plate is connected with the drive mechanism 113. The extension plate can play the role of connection and guidance, so that the upper clamp 101 is more stable when moving.

[0043] The upper clamp 101 is slidably mounted on the mounting plate 112 via a sliding assembly 115. The sliding assembly 115 includes a slider and a slide rail. The slide rail is fixedly mounted on the mounting plate 112, and the slider is connected to the mounting plate 112 and slides in cooperation with the slide rail. The sliding assembly 115 makes the upper clamp 101 more stable during movement.

[0044] In practical use, the sliding component 115 can also adopt the method of sliding groove and sliding protrusion. The sliding groove can be a dovetail groove or a T-shaped groove to ensure that the upper clamp 101 is more stable when moving.

[0045] Furthermore, in some preferred embodiments, a ring is provided at the lower end of the upper clamp 101, the end of the ring being lower than the height of the end face of the lens assembly 109 held by the upper clamp 101, and a UV lamp strip is provided on the inner wall of the ring.

[0046] The UV light strip can accelerate the curing speed of the adhesive during bonding, and the ring can reduce light leakage.

[0047] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0048] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An optical axis aligner comprising an upper clamp and a lower clamp, characterized by: The bottom of the lower clamp is provided with a buffer unit, which is connected with an adjusting mechanism for adjusting the angle and horizontal position of the lower clamp and the buffer unit. The buffer unit comprises an outer cylinder, a spring and a stop lever, the outer cylinder is fixedly installed on the lower clamp, the stop lever extends into the outer cylinder and is in sliding fit with the outer cylinder, a limiting part is arranged on the stop lever inside the outer cylinder, the spring is located in the outer cylinder and is sleeved on the stop lever, the upper end of the spring is connected with the lower clamp, and the lower end is in contact with the limiting part. The upper end of the stop lever is provided with a moving space with the lower clamp, the lower end of the stop lever is connected with the adjusting mechanism, the upper clamp is connected with the driving unit, and the driving unit drives the upper clamp to move close to or away from the lower clamp.

2. An optical axis collimator according to claim 1, characterized in that: The lower clamp is provided with a positioning groove.

3. An optical axis collimator according to claim 1, characterized in that: The stop lever and the outer cylinder are provided with a sliding sleeve or a linear bearing.

4. The optical axis collimator according to claim 1, characterized in that: The driving unit comprises a mounting plate and a driving mechanism, the mounting plate is fixedly arranged on the equipment rack, the upper clamp is slidably arranged on the mounting plate, and the driving mechanism is arranged on the mounting plate and is used for driving the upper clamp to move.

5. An optical axis collimator according to claim 4, characterized in that: The mounting plate is provided with a through slot, the upper clamp is provided with an extension plate, the extension plate passes through the through slot and is in sliding connection with the through slot, and the extension plate is connected with the driving mechanism.

6. An optical axis collimator according to claim 4, characterized in that: The upper clamp is slidably arranged on the mounting plate through the sliding assembly.

7. An optical axis collimator according to claim 6, characterized in that: The sliding assembly comprises a sliding block and a sliding rail, the sliding rail is fixedly arranged on the mounting plate, and the sliding block is connected with the mounting plate and is in sliding fit with the sliding rail.

8. An optical axis collimator according to any one of claims 1 to 7, characterized in that: The lower end of the upper clamp is provided with a circular ring, the end of the circular ring is lower than the height of the end face of the lens assembly clamped by the upper clamp, and a UV lamp strip is arranged on the inner wall of the circular ring.

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