CN212734622U

CN212734622U - Automatic focusing structure

Info

Publication number: CN212734622U
Application number: CN202021560905.1U
Authority: CN
Inventors: 李宇
Original assignee: Beijing Linjiang Technology Co ltd
Current assignee: Beijing Linjiang Technology Co ltd
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2021-03-19
Anticipated expiration: 2030-07-31

Abstract

The utility model discloses an automatic focusing structure, including supporting seat, fixed lens cone, movable lens cone, the supporting seat top is provided with certain lens cone, fixed lens cone joint has a movable lens cone, the supporting seat side is provided with a power unit, power unit output end is towards movable lens cone one side, and the end is provided with a positioning mechanism, the last guiding mechanism that is provided with of positioning mechanism, the fixed lens cone is close to supporting seat one side and is provided with fixed mirror holder, fixed mirror holder opposite side has set gradually first fixed lens, second fixed lens, third fixed lens is provided with the second clamping ring all around, the first fixed lens outside is provided with first clamping ring, the second fixed lens outside is provided with a spacer ring, the spacer ring is provided with a slide bearing outward, movable lens cone is provided with a guide way near slide bearing one side. The utility model discloses in, form relative displacement through motor control movable lens cone and fixed lens cone, and then reach focus regulation's purpose.

Description

Automatic focusing structure

Technical Field

The utility model relates to a focusing device technical field especially relates to an automatic focusing structure.

Background

In recent years, with the continuous development of laser technology, laser is widely applied to the power industry, and laser foreign matter removal is a representative application method of laser in the power industry; the principle of removing the foreign matters by laser is that a laser emitting device emits a laser beam, the laser beam irradiates the foreign matters, and the foreign matters are fused and cut by high energy of the laser, so that the aim of removing the foreign matters is fulfilled.

Most lasers in the market are focused at fixed points, namely, the lasers are focused at specific distance points, the foreign matter removing effect is obvious, the focusing points cannot be adjusted along with the change of the distance, the removing effect outside the specific points is obviously reduced, and the actual requirement is hardly met because the distance of the foreign matters in the actual requirement is an uncertain value.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an automatic focusing structure.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an automatic focusing structure comprises a supporting seat, a fixed lens cone and a movable lens cone, wherein the fixed lens cone is arranged above the supporting seat, the movable lens cone is clamped on the fixed lens cone, a power mechanism is arranged on the side surface of the supporting seat, the output end of the power mechanism faces one side of the movable lens cone, the tail end of the power mechanism is provided with a positioning mechanism, a guide mechanism is arranged on the positioning mechanism, a fixed lens frame is arranged on one side, close to the supporting seat, of the fixed lens cone, the other side of the fixed lens frame is sequentially provided with a first fixed lens, a second fixed lens and a third fixed lens, a second pressing ring is arranged around the third fixed lens, a first pressing ring is arranged on the outer side of the first fixed lens, a spacing ring is arranged on the outer side of the second fixed lens, a sliding bearing is arranged outside the spacing ring, a guide groove is arranged on one side, one side of the movable lens barrel, which is far away from the guide groove, is provided with a movable lens, and the periphery of the movable lens is also provided with a second pressing ring.

As a further description of the above technical solution:

the positioning mechanism comprises a sensor support, an induction sheet and a sensor, and is electrically connected with the power mechanism.

As a further description of the above technical solution:

the guide mechanism comprises a sliding bearing and a guide groove, and the sliding bearing is clamped in the guide groove.

As a further description of the above technical solution:

the output end of the power mechanism is rotatably connected with a screw rod and is connected with the movable lens cone.

As a further description of the above technical solution:

the power mechanism is provided with a motor, a support and a driver in a matching way and is fixedly connected with the supporting seat.

As a further description of the above technical solution:

the sliding bearing is fixedly connected to the output end at the tail end of the power mechanism.

The utility model discloses following beneficial effect has:

1. the utility model discloses the laser that the different distance points of realization that the automatic focusing structure can be fine assembles, and to a great extent has improved laser maneuverability and suitability.

2. The utility model discloses well simple structure, when realizing the automatic focusing function, the cost is lower, and stable in structure, easy operation, the practicality is strong.

Drawings

Fig. 1 is a schematic structural diagram of an automatic focusing structure provided by the present invention;

fig. 2 is a schematic structural view of a fixed lens barrel of an automatic focusing structure provided by the present invention;

fig. 3 is a schematic view of a movable lens barrel structure of an automatic focusing structure according to the present invention.

Illustration of the drawings:

1. a supporting seat; 2. fixing the lens barrel; 3. a movable lens barrel; 4. a guide mechanism; 5. a positioning mechanism; 6. a power mechanism; 7. a third lens; 8. a second lens; 9. a first lens; 10. fixing a mirror frame; 11. a second clamping ring; 12. a sliding bearing; 13. a space ring; 14. a first clamping ring; 15. a movable mirror frame; 16. moving the lens; 17. a guide groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment: an automatic focusing structure comprises a supporting seat 1, a fixed lens cone 2 and a movable lens cone 3, wherein a fixed lens cone 2 is arranged above the supporting seat 1, the fixed lens cone 2 is connected with the movable lens cone 3 in a clamping way, a power mechanism 6 is arranged on the side surface of the supporting seat 1, the output end of the power mechanism 6 faces one side of the movable lens cone 3, the tail end of the power mechanism is provided with a positioning mechanism 5, the positioning mechanism 5 is provided with a guide mechanism 4, one side of the fixed lens cone 2 close to the supporting seat 1 is provided with a fixed lens frame 10, the other side of the fixed lens frame 10 is sequentially provided with a first fixed lens 9, a second fixed lens 8 and a third fixed lens 7, the periphery of the third fixed lens 7 is provided with a second pressing ring 11, the outer side of the first fixed lens 9 is provided with a first pressing ring 14, the outer side of the second fixed lens 8 is provided with a spacing ring 13, the outer side of the spacing, one side of the movable lens barrel 3, which is far away from the guide groove 17, is provided with a movable lens 16, and the periphery of the movable lens 16 is also provided with a second pressing ring 11.

Positioning mechanism 5, including the sensor support, response piece and sensor, and be provided with electric connection between power unit 6, guiding mechanism 4, constitute including slide bearing 12 and guide way 17, slide bearing 12 joint is in guide way 17, power unit 6 output rotates and is connected with a lead screw, and links to each other with movable lens cone 3, the supporting motor that is provided with of power unit 6, support and driver, and with 1 fixed connection of supporting seat, slide bearing 12 fixed connection is on the terminal output of power unit 6.

The working principle is as follows:

1. when focusing is needed, a motor in the power mechanism 6 drives a screw rod to rotate, the sliding bearing 12 is pushed to move in the guide groove 17, and then the movable lens barrel 3 and the fixed lens barrel 2 generate relative displacement, so that automatic focusing is realized.

2. When the moving distance of the movable lens barrel 3 does not meet the focusing range, the first fixed lens 9 and the second fixed lens 8 can be selected to enable the focal length to be larger.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides an automatic focusing structure, includes supporting seat (1), fixed lens cone (2), movable lens cone (3), its characterized in that: a fixed lens barrel (2) is arranged above the supporting seat (1), a movable lens barrel (3) is clamped on the fixed lens barrel (2), a power mechanism (6) is arranged on the side surface of the supporting seat (1), the output end of the power mechanism (6) faces one side of the movable lens barrel (3), a positioning mechanism (5) is arranged at the tail end of the power mechanism, a guide mechanism (4) is arranged on the positioning mechanism (5), a fixed lens frame (10) is arranged on one side, close to the supporting seat (1), of the fixed lens barrel (2), a first fixed lens (9), a second fixed lens (8) and a third fixed lens (7) are sequentially arranged on the other side of the fixed lens frame (10), a second pressing ring (11) is arranged on the periphery of the third fixed lens (7), a first pressing ring (14) is arranged on the outer side of the first fixed lens (9), and a spacing ring (13) is arranged on, a sliding bearing (12) is arranged outside the spacer ring (13), a guide groove (17) is arranged on one side, close to the sliding bearing (12), of the movable lens barrel (3), a movable lens frame (15) is arranged on the opposite side of the guide groove (17), a movable lens (16) is arranged on one side, far away from the guide groove (17), of the movable lens barrel (3), and a second pressing ring (11) is also arranged on the periphery of the movable lens (16).

2. An autofocus structure according to claim 1, wherein: the positioning mechanism (5) comprises a sensor support, an induction sheet and a sensor, and is electrically connected with the power mechanism (6).

3. An autofocus structure according to claim 1, wherein: the guide mechanism (4) comprises a sliding bearing (12) and a guide groove (17), and the sliding bearing (12) is connected in the guide groove (17) in a clamping mode.

4. An autofocus structure according to claim 1, wherein: the output end of the power mechanism (6) is rotationally connected with a screw rod and is connected with the movable lens cone (3).

5. An autofocus structure according to claim 1, wherein: the power mechanism (6) is provided with a motor, a support and a driver in a matched manner, and is fixedly connected with the supporting seat (1).

6. An autofocus structure according to claim 1, wherein: the sliding bearing (12) is fixedly connected to the output end of the tail end of the power mechanism (6).