CN213778917U

CN213778917U - Coaxial light focusing device of image measuring instrument

Info

Publication number: CN213778917U
Application number: CN202120045178.3U
Authority: CN
Inventors: 雷修权
Original assignee: Tianhang Intelligent Technology Xuzhou Co ltd
Current assignee: Tianhang Intelligent Technology Xuzhou Co ltd
Priority date: 2021-01-08
Filing date: 2021-01-08
Publication date: 2021-07-23
Anticipated expiration: 2031-01-08

Abstract

The utility model provides an image measuring apparatu's coaxial light focusing device relates to image measuring apparatu technical field. The coaxial light focusing device of the image measuring instrument comprises a workbench, wherein a control box is fixedly connected to the back of the workbench, a first motor is fixedly connected to the inner top wall of the control box, a screw rod is fixedly connected to an output rotating shaft of the first motor, and a moving block is in threaded connection with the outer surface of the screw rod. This coaxial light focusing device of image measuring apparatu through the cooperation setting between first motor, screw rod, movable block and the shifting chute, realizes the purpose to the coarse adjustment of detection lens position, sets up through the cooperation between second motor, connecting plate, driving gear and the driven gear, has realized the purpose to the fine tuning of zoom lens focus, has reached automatic effect to zoom lens focus quick adjustment, possesses the advantage that the efficiency of focusing is high and the accuracy of focusing is strong, the effectual measurement of efficiency who promotes image measuring apparatu.

Description

Coaxial light focusing device of image measuring instrument

Technical Field

The utility model relates to an image measuring apparatu technical field specifically is an image measuring apparatu's coaxial light focusing device.

Background

The image measuring instrument is based on CCD digital image and is produced based on the powerful software capacity of computer screen measuring technology and space geometric operation. After the computer is installed with special control and graphic measurement software, the computer becomes a measurement brain with a software soul, and the measurement brain is the main body of the whole device. The displacement value of the optical ruler can be quickly read, and a required result is obtained instantly through software module operation established on the basis of space geometry; and a graph is generated on the screen for the operator to compare the images, so that the possible deviation of the measurement result can be visually distinguished.

Generally speaking, before measuring the profile or the surface height of a workpiece to be measured, image focusing is usually required to be performed, so that the distance from the surface of the workpiece to be measured to a lens is equal to a focal length, whether accurate focusing can be performed or not is achieved, and an important role is played in ensuring the measurement precision.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an image measuring apparatu's coaxial light focusing device has solved the problem of proposing in the background art.

Technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a coaxial light focusing device of an image measuring instrument comprises a workbench, wherein a control box is fixedly connected to the back of the workbench, a first motor is fixedly connected to the inner top wall of the control box, a screw rod is fixedly connected to an output rotating shaft of the first motor, a moving block is in threaded connection with the outer surface of the screw rod, a moving groove is formed in the front of the control box, the front of the moving block penetrates through the inside of the moving groove and is fixedly connected with an adjusting box, a CCD camera is fixedly connected to the inside of the adjusting box, a zoom lens is fixedly connected to the output end of the CCD camera, a connecting plate is fixedly connected to the outer surface of the zoom lens, the outer surface of the connecting plate is fixedly connected to the inner wall of the adjusting box, a driven gear is fixedly connected to an adjusting part of the zoom lens, a second motor is fixedly connected to the top surface of the connecting plate, and a driving gear is fixedly connected to the output rotating shaft of the second motor, and the driving gear is meshed with the driven gear, and one end of the zoom lens, which is far away from the CCD camera, is fixedly connected with a detection lens.

The further improvement does, the top of workstation is equipped with the linkage piece, the top surface fixedly connected with of linkage piece places the platform, through setting up the linkage piece, removes the adjustment through the linkage piece to placing the platform.

The improved structure is characterized in that the top surface of the placing table is provided with a containing groove, the inner bottom wall of the containing groove is fixedly connected with a light source, the top surface of the placing table is fixedly connected with a glass plate, and light is supplemented for a detected object by setting the light source, so that the measuring accuracy is improved.

The improvement is that, the equal fixedly connected with supporting leg in four edges of workstation bottom surface, every the equal fixedly connected with skid resistant course in bottom surface of supporting leg through setting up the supporting leg, supports the workstation, promotes the stability of workstation.

The improved structure is characterized in that the inside of the control box is fixedly connected with a limiting plate, the screw is rotatably connected inside the limiting plate through a bearing, and the moving block is limited by the limiting plate.

The further improvement is that, the inside sliding connection of movable block has two guide bars, two the both ends of guide bar are fixed connection respectively in the interior roof of control box and the top surface of limiting plate, through setting up the guide bar, make the movable block slide on the guide bar, promote the stability that the movable block removed.

The utility model provides a, this coaxial light focusing device of image measuring apparatu, through first motor, the screw rod, cooperation setting between movable block and the shifting chute, it is rotatory to drive the screw rod through the output pivot of first motor, thereby make the movable block slide in the inside of shifting chute, realize the purpose to detecting the coarse adjustment of camera lens position, through the second motor, the connecting plate, cooperation setting between driving gear and the driven gear, it is rotatory to drive the driving gear through the output pivot of second motor, and under driven gear's effect, the purpose to zoom focus fine tuning has been realized, to sum up, the effect of automatic to zoom lens focus quick adjustment has been reached, possess the advantage that the efficiency of focusing is high and the accuracy of focusing is strong, the effectual measurement of image measuring apparatu that has promoted.

The coaxial light focusing device of the image measuring instrument is characterized in that a light source is arranged on the position, the position is adjusted by moving the position placing table through the linkage block, light is supplemented for a detected object by setting the light source, the measurement accuracy is improved, the workbench is supported by setting the supporting legs, the stability of the workbench is improved, the moving block is limited by setting the limiting plate, and the moving block slides on the guide rod by setting the guide rod, so that the stability of the moving block is improved.

Drawings

Fig. 1 is a perspective view of the present invention;

FIG. 2 is a cross-sectional view of the front view of the present invention;

fig. 3 is a cross-sectional view of a back view of the present invention;

fig. 4 is an enlarged schematic view of the structure at a in fig. 2 according to the present invention.

In the figure, the reference number is 1, a workbench; 2. a control box; 3. a first motor; 4. a screw; 5. a moving block; 6. a moving groove; 7. a guide bar; 8. a limiting plate; 9. an adjusting box; 10. a CCD camera; 11. a zoom lens; 12. detecting a lens; 13. a driven gear; 14. a connecting plate; 15. a second motor; 16. a driving gear; 17. a placing table; 18. a receiving groove; 19. a light source; 20. a glass plate; 21. supporting legs; 22. a linkage block.

Detailed Description

As shown in FIGS. 1-4, the embodiment of the utility model provides a coaxial light focusing device of image measuring instrument, comprising a workbench (1), a linkage block (22) is arranged on the top of the workbench (1), a placing table (17) is fixedly connected with the top surface of the linkage block (22), the placing table (17) is moved and adjusted through the linkage block (22) by arranging the linkage block (22), a receiving groove (18) is arranged on the top surface of the placing table (17), a light source (19) is fixedly connected with the inner bottom wall of the receiving groove (18), a glass plate (20) is fixedly connected with the top surface of the placing table (17), the light source (19) is arranged to supplement light for the detected object, the measuring accuracy is improved, a control box (2) is fixedly connected with the back surface of the workbench (1), a first motor (3) is fixedly connected with the inner top wall of the control box (2), the output rotating shaft of first motor (3) fixedly connected with screw rod (4), the surface threaded connection of screw rod (4) has movable block (5), shifting chute (6) have been seted up in the front of control box (2), the inside fixedly connected with limiting plate (8) of control box (2), screw rod (4) rotate through the bearing and connect in the inside of limiting plate (8), through setting up limiting plate (8), carry out spacingly to movable block (5), the inside sliding connection of movable block (5) has two guide bars (7), two the both ends difference fixed connection of guide bar (7) is in the interior roof of control box (2) and the top surface of limiting plate (8), through setting up guide bar (7), makes movable block (5) slide on guide bar (7), promotes the stability that movable block (5) removed.

The front face of the moving block (5) penetrates through the inside of the moving groove (6) and is fixedly connected with an adjusting box (9), a CCD camera (10) is fixedly connected inside the adjusting box (9), the output end of the CCD camera (10) is fixedly connected with a zoom lens (11), the outer surface of the zoom lens (11) is fixedly connected with a connecting plate (14), the outer surface of the connecting plate (14) is fixedly connected with the inner wall of the adjusting box (9), a regulating part of the zoom lens (11) is fixedly connected with a driven gear (13), the top surface of the connecting plate (14) is fixedly connected with a second motor (15), the first motor (3) and the second motor (15) both use 5 IK-YF positive and negative rotation motors, the output rotating shaft of the second motor (15) is fixedly connected with a driving gear (16), and the driving gear (16) is meshed with the driven gear (13), one end fixedly connected with detection camera lens (12) of CCD camera (10) are kept away from in zoom lens (11), four equal fixedly connected with supporting legs (21) in edge of workstation (1) bottom surface, every the equal fixedly connected with skid resistant course in bottom surface of supporting leg (21) supports workstation (1) through setting up supporting leg (21), promotes the stability of workstation (1).

The utility model discloses the theory of operation as follows:

the method comprises the steps of electrically connecting a first motor (3), a second motor (15) and a CCD camera (10) with an external power supply, firstly, placing an object to be detected on a glass plate (20), adjusting the position of a placing table (17) through a linkage block (22), moving the object to be detected to be right below a detection lens (12), then, starting the first motor (3), enabling an output rotating shaft of the first motor (3) to drive a screw rod (4) to rotate, enabling a moving block (5) to move on the screw rod (4), enabling the moving block (5) to drive an adjusting box (9) to move up and down under the action of a moving groove (6), moving a zoom lens (11) to a proper height, and finally, starting the second motor (15), enabling the output rotating shaft of the second motor (15) to drive a driving gear (16) to rotate, enabling a driven gear (13) to rotate and adjust a rotating part on the zoom lens (11) under the action of the driven gear (13), the effect of automatically and rapidly adjusting the focal length of the zoom lens (11) is achieved, the advantages of high focusing efficiency and high focusing accuracy are achieved, and the measuring efficiency of the image measuring instrument is effectively improved.

Claims

1. The utility model provides a coaxial optical focusing device of image measuring instrument, includes workstation (1), its characterized in that: the back of the workbench (1) is fixedly connected with a control box (2), the inner top wall of the control box (2) is fixedly connected with a first motor (3), an output rotating shaft of the first motor (3) is fixedly connected with a screw rod (4), the outer surface of the screw rod (4) is in threaded connection with a moving block (5), the front of the control box (2) is provided with a moving groove (6), the front of the moving block (5) penetrates through the inside of the moving groove (6) and is fixedly connected with an adjusting box (9), the inside of the adjusting box (9) is fixedly connected with a CCD camera (10), the output end of the CCD camera (10) is fixedly connected with a zoom lens (11), the outer surface of the zoom lens (11) is fixedly connected with a connecting plate (14), the outer surface of the connecting plate (14) is fixedly connected with the inner wall of the adjusting box (9), and an adjusting part of the zoom lens (11) is fixedly connected with a driven gear (13), the top surface fixedly connected with second motor (15) of connecting plate (14), the output pivot fixedly connected with driving gear (16) of second motor (15), and driving gear (16) and driven gear (13) meshing are connected, the one end fixedly connected with detection camera lens (12) of CCD camera (10) are kept away from in zoom (11).

2. The coaxial optical focusing device of the image measuring apparatus as claimed in claim 1, wherein: the top of workstation (1) is equipped with linkage block (22), the top surface fixedly connected with of linkage block (22) places platform (17).

3. The coaxial optical focusing device of the image measuring apparatus as claimed in claim 2, wherein: the top surface of the placing table (17) is provided with a containing groove (18), the inner bottom wall of the containing groove (18) is fixedly connected with a light source (19), and the top surface of the placing table (17) is fixedly connected with a glass plate (20).

4. The coaxial optical focusing device of the image measuring apparatus as claimed in claim 1, wherein: the equal fixedly connected with supporting leg (21) in four edges department of workstation (1) bottom surface, every the equal fixedly connected with skid resistant course in bottom surface of supporting leg (21).

5. The coaxial optical focusing device of the image measuring apparatus as claimed in claim 1, wherein: the inside fixedly connected with limiting plate (8) of control box (2), screw rod (4) rotate through the bearing and connect in the inside of limiting plate (8).

6. The coaxial optical focusing device of the image measuring apparatus as claimed in claim 5, wherein: the inner portion of the moving block (5) is connected with two guide rods (7) in a sliding mode, and two ends of the two guide rods (7) are fixedly connected to the inner top wall of the control box (2) and the top face of the limiting plate (8) respectively.