CN213990773U

CN213990773U - Camera center pin calibrator

Info

Publication number: CN213990773U
Application number: CN202022994495.8U
Authority: CN
Inventors: 成才文; 王鹏; 宁德灰; 周真侦
Original assignee: Xinfeng Shijia Technology Co ltd
Current assignee: Xinfeng Shijia Technology Co ltd
Priority date: 2020-12-14
Filing date: 2020-12-14
Publication date: 2021-08-17
Anticipated expiration: 2030-12-14

Abstract

The utility model discloses a camera center pin calibrator, wherein the center of a base plate of a fixing seat is provided with a through hole, a lens is arranged at the center of the base plate of the fixing seat, the number of fixing sleeves is multiple, the multiple groups of fixing sleeves are uniformly distributed and fixed on the side wall of the fixing seat, nuts are fixed in the fixing sleeves and are in threaded fit with screw rods, the two ends of each screw rod pass through the center hole of the fixing sleeve, the end part of each screw rod is fixed with a bearing fixing plate, a bearing is fixed on each bearing fixing plate, the rear end of a rotating shaft is inserted into, the front end of pivot and curved clamp plate, the rear portion symmetry of clamp plate is fixed with the guide bar, guide bar and uide bushing looks adaptation, and the uide bushing is fixed on the lateral wall of fixing base, and the rear end of screw rod is fixed with the cover barrel-shaped swivel housing, and the front portion cover of swivel housing is in the outside of fixed cover, and the swivel housing front portion is equipped with circumference scale mark, and fixed cover rear portion is equipped with horizontal scale mark. The utility model has the advantages of positioning accuracy is high, detection efficiency is high.

Description

Camera center pin calibrator

Technical Field

The utility model belongs to the technical field of the camera detects, concretely relates to camera center pin calibrator.

Background

The camera has basic functions of video shooting/transmission, static image capture and the like, and after images are collected through a lens, the images are processed and converted into digital signals which can be identified by a computer through a photosensitive component circuit and a control component in the camera, and then the digital signals are input into the computer through a parallel port or a USB connection and then are restored through software. The working principle of the camera is roughly as follows: the scenery is projected on the surface of an image sensor through an optical image generated by a LENS (LENS), then converted into an electric signal, converted into a digital image signal through A/D (analog-to-digital conversion), sent into a digital signal processing chip (DSP) for processing, transmitted into a computer through a USB interface for processing, and the image can be seen through a display.

The camera lens is the core of camera, and the camera lens is assembling the camera head and is going to need carry out multichannel detection process, and wherein, the optics center pin of camera lens detects crucial, and prior art places the camera lens in fixed cover mostly, then aligns optical center through pointolite and dash receiver and detects, because the camera lens is placed in fixed cover, leads to the camera lens positioning accuracy relatively poor to the precision that detects has been influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned prior art not enough, provide a camera center pin calibrator.

A camera center shaft calibrating machine comprises a fixed seat, a fixed sleeve and a lens; the fixing seat is of a disc-shaped structure with an opening at the upper end, a through hole is formed in the center of the fixing seat bottom plate, the lens is placed in the center of the fixing seat bottom plate, the number of the fixing sleeves is multiple, the multiple groups of fixing sleeves are uniformly fixed on the side wall of the fixing seat, nuts are fixed in the fixing sleeves and are in threaded fit with the screw rods, the two ends of each screw rod penetrate through the center hole of each fixing sleeve, a bearing fixing plate is fixed at the end part of each screw rod, a bearing is fixed on each bearing fixing plate, the rear end of each rotating shaft is inserted into each bearing, the front end of each rotating shaft and an arc-shaped pressing plate are symmetrically fixed at the rear part of each pressing plate, guide rods are matched with the guide sleeves, the guide sleeves are fixed on the side wall of the fixing seat, sleeve-shaped rotating sleeves are fixed at the rear ends of the screw rods, and the front parts of the rotating sleeves cover the outer sides of the fixing sleeves, the front part of the rotary sleeve is provided with circumferential scale marks, and the rear part of the fixed sleeve is provided with horizontal scale marks.

Preferably, the pressure plate is adapted to the outside of the lens.

Preferably, the fixing seat is fixed on the upper part of the detection box, and the receiving plate is fixed on the bottom of the detection box.

Preferably, a point light source is arranged right above the lens.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses when using, the camera lens is placed on the bottom plate of fixing base, through adjusting the swivel mount, but the screw rod back-and-forth movement, the clamp plate back-and-forth movement, thereby the front and back position of adjustment clamp plate, make the center of camera lens and the coincidence of the central line of pointolite, the pointolite is luminous, the lens that light passed on the camera lens shines on the dash receiver, the dash receiver is connected with the PC, the optical center pin of position measurement lens on the dash receiver is shone to light through measuring the camera lens, thereby judge whether qualified lens. The utility model realizes the accurate positioning of the lens by arranging the rotary sleeve and the fixed sleeve, has the advantage of high positioning precision, thereby ensuring the detection precision; through setting up pointolite and dash receiver, realize quick detection, have the advantage that detection efficiency is high.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is the utility model relates to a structure schematic diagram of camera center pin calibrator.

Fig. 2 is a schematic top view of fig. 1.

In the figure, the device comprises a fixed seat 1, a fixed seat 2, a lens 3, a pressing plate 4, a guide sleeve 5, a guide rod 6, a fixed sleeve 7, a nut 8, a screw rod 9, a rotary sleeve 10, a bearing fixing plate 11, a bearing 12, a rotating shaft 13, a point light source 14, a detection box 15 and a receiving plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1 and 2, a camera center shaft calibrator includes a fixing base 1, a fixing sleeve 6, and a lens 2; the fixing seat 1 is of a disc-shaped structure with an opening at the upper end, a through hole is formed in the center of a bottom plate of the fixing seat 1, the lens 2 is placed in the center of the bottom plate of the fixing seat 1, the fixing sleeves 6 are multiple in number, multiple groups of the fixing sleeves 6 are uniformly fixed on the side wall of the fixing seat 1, nuts 7 are fixed in the fixing sleeves 6, the nuts 7 are in threaded fit with screw rods 8, two ends of the screw rods 8 penetrate through center holes of the fixing sleeves 6, bearing fixing plates 10 are fixed at the end parts of the screw rods 8, bearings 11 are fixed on the bearing fixing plates 10, the rear ends of rotating shafts 12 are inserted into the bearings 11, the front ends of the rotating shafts 12 are connected with arc-shaped pressing plates 3, guide rods 5 are symmetrically fixed at the rear parts of the pressing plates 3, the guide rods 5 are matched with the guide sleeves 4, the guide sleeves 4 are fixed on the side wall of the fixing seat 1, and sleeve-shaped rotating sleeves 9 are fixed at the rear ends of the screw rods 8, the front part of the rotary sleeve 9 covers the outer side of the fixed sleeve 6, the front part of the rotary sleeve 9 is provided with circumferential scale marks, and the rear part of the fixed sleeve 6 is provided with horizontal scale marks.

The pressing plate 3 is matched with the outer side of the lens 2.

The fixing seat 1 is fixed on the upper part of the detection box 14, and a receiving plate 15 is fixed at the bottom of the detection box 14.

A point light source 13 is arranged right above the lens 2.

The utility model discloses a theory of operation is:

the utility model discloses when using, camera lens 2 is placed on the bottom plate of fixing base 1, through adjusting swivel mount 9, but the screw rod 8 back-and-forth movement, 3 back-and-forth movement of clamp plate, thereby adjust the front and back position of clamp plate 3, make the center of camera lens 2 and the coincidence of the central line of pointolite 13, pointolite 13 is luminous, light passes lens irradiation on camera lens 2 on dash receiver 15, dash receiver 15 is connected with the PC, the optical center pin of position measurement lens on dash receiver 15 is shone through the light that measures and pass camera lens 2, thereby judge whether qualified lens. The utility model realizes the accurate positioning of the lens 2 by arranging the rotary sleeve 9 and the fixed sleeve 6, and has the advantage of high positioning precision, thereby ensuring the detection precision; through setting up pointolite 13 and receiving board 15, realize quick detection, have the advantage that detection efficiency is high.

It should be noted that, the rotating sleeve 9 rotates for a circle, the distance of the screw 8 moving back and forth is the same as a scale value on the fixed sleeve 6, the circumferential scale mark on the front part of the rotating sleeve 9 is the same as a scale value, the measurement principle is the same as that of the micrometer screw, and the description is omitted in the technical scheme.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element. The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A camera center shaft calibrating machine comprises a fixed seat (1), a fixed sleeve (6) and a lens (2); the method is characterized in that: the utility model discloses a camera lens, including fixing base (1), fixing base (1) is upper end open-ended disc structure, the center department of fixing base (1) bottom plate is equipped with the through-hole, the center department at fixing base (1) bottom plate is placed to camera lens (2), the quantity of fixed cover (6) is the multiunit, the multiunit fixed cover (6) equipartition is fixed on the lateral wall of fixing base (1), fixed cover (6) internal fixation has nut (7), nut (7) and screw rod (8) screw-thread fit, the centre bore of fixed cover (6) is passed at the both ends of screw rod (8), the end fixing of screw rod (8) has bearing fixed plate (10), be fixed with bearing (11) on bearing fixed plate (10), the rear end of pivot (12) inserts in bearing (11), the front end and curved clamp plate (3) of pivot (12), the rear portion symmetry of clamp plate (3) is fixed with guide bar (5), guide bar (5) and uide bushing (4) looks adaptation, uide bushing (4) are fixed on the lateral wall of fixing base (1), the rear end of screw rod (8) is fixed with cover barrel-shaped swivel sleeve (9), the anterior cover of swivel sleeve (9) is in the outside of fixed cover (6), swivel sleeve (9) front portion is equipped with circumference scale mark, fixed cover (6) rear portion is equipped with horizontal scale mark.

2. A camera center axis calibrator according to claim 1, wherein: the pressing plate (3) is matched with the outer side of the lens (2).

3. A camera center axis calibrator according to claim 1, wherein: the fixing seat (1) is fixed on the upper portion of the detection box (14), and a receiving plate (15) is fixed at the bottom of the detection box (14).

4. A camera center axis calibrator according to claim 1, wherein: and a point light source (13) is arranged right above the lens (2).