CN215729073U - Focusing micro-motion device of optical microscope - Google Patents

Abstract

A focusing micro-motion device of an optical microscope comprises a shell arranged outside, an objective lens group used for using, a continuous zoom lens group used for using, a focusing lens adjusting mechanism and a continuous zoom lens group adjusting mechanism, wherein the two sides of the focusing lens group are both provided with the focusing lens adjusting mechanisms, and the two sides of the continuous zoom lens group are both provided with the continuous zoom lens group adjusting mechanisms; the focusing lens adjusting mechanism comprises first fixing blocks, a first connecting frame and a first servo motor, the two first fixing blocks are fixed on the inner wall of the shell, a first lead screw is mounted in the middle of each first fixing block, and the first lead screw is connected with the first fixing blocks through first bearings.

Description

Focusing micro-motion device of optical microscope

Technical Field

The utility model relates to a focusing micro-motion device, in particular to a focusing micro-motion device of an optical microscope.

Background

With the improvement and popularization of the digitization technology, more and more people can not directly watch images through an eyepiece when carrying out microscopic magnification observation, but transmit digitized images to a display screen for real-time observation through a video acquisition device (such as an industrial camera, a video camera and the like).

There are two main structures of existing video microscopes: (1) stereomicroscope or metallographic microscope are furnished with video acquisition device (such as industry camera, video camera etc.), as shown in fig. 1, its major structure has: 1. an eyepiece; 2. a video capture device; 3. zoom body and zoom knob; 4. a focusing bracket and a focusing knob; 5. an objective lens; 6. a base. (2) As shown in fig. 2, the single-tube zoom lens is equipped with a video capture device (such as an industrial camera, a video camera, etc.), and its main structure includes: 1. a video capture device; 2. a zoom lens barrel; 3. a zoom knob; 4. A base; 5. focusing support and focusing knob. According to the two video microscopes, when a sample is placed on the base, if a clear video image needs to be obtained, the lens is lifted and adjusted to a proper focal length by rotating the focusing knob on the focusing support, and then the zoom body is adjusted to obtain a clear image with a proper multiple. In both of the above video microscopes, the zoom knob needs to be manually rotated if the magnification is to be adjusted. When the clearest image is desired, the focusing knob needs to be manually adjusted to reach a fixed focusing distance, so that the image can be clear. Because the daily observation of samples varies, the magnification needs to be adjusted repeatedly. Different samples are different in height, the same sample is often complex, and the heights of different positions are also often different, so that a clear image can be obtained by frequently operating a focusing knob to focus. Whether the image is the clearest or not can be judged manually, and the optimal image cannot be obtained necessarily, so that professional training needs to be performed on operators.

For this reason, the application numbers are: 201620488525.9A video microscope with electrically focusing and zooming features that its power mechanism and guide mechanism are far away from each other, resulting in poor stability and low precision.

SUMMERY OF THE UTILITY MODEL

In view of the above situation, the present invention provides a focusing micro-motion device for an optical microscope, which effectively solves the problems that the existing focusing micro-motion device for an optical microscope still has certain defects, the power mechanism and the guide mechanism are far away, the movement stability is poor, the long-term adjustment precision is also reduced, and the use is not facilitated.

In order to achieve the purpose, the utility model provides the following technical scheme: the zoom lens comprises a shell, an objective lens group, a continuous zoom lens group, a focusing lens adjusting mechanism and a continuous zoom lens group, wherein the shell is arranged outside the zoom lens group;

the focusing lens adjusting mechanism comprises a first fixing block, a first lead screw, a first bearing, a lifting block, a screw hole, a guide post, a guide hole, a first connecting frame and a first servo motor, wherein the two first fixing blocks are fixed at the position of the inner wall of the shell, the first lead screw is installed in the middle of the first fixing block and is connected with the first fixing block through the first bearing, the guide post is arranged on the first fixing blocks on two sides of the first lead screw, the lifting block is sleeved on the first lead screw and the guide post, the first connecting frame is arranged in the middle of the inner side of the lifting block and is connected with the focusing lens group, and the first servo motor is installed at one end of the first lead screw.

Preferably, the surfaces of the first screw rod and the guide column are provided with lubricating grease.

Preferably, the lifting block is of a fan-shaped structure.

Preferably, the adjusting mechanism of the continuous zoom lens group comprises two second fixed blocks fixed on the inner wall of the shell, a second lead screw arranged in the middle of the second fixed block, a second bearing connected with the second fixed block, two guide posts arranged on two sides of the second lead screw, a lifting block sleeved on the second lead screw and the guide posts, a second servo motor arranged at one end of the second lead screw, and a second connecting frame arranged on the inner side of the lifting block on the second lead screw.

Preferably, the lifting block is provided with a screw hole corresponding to the first screw rod, and the lifting block is provided with a guide hole corresponding to the guide post.

Preferably, one end of the second connecting frame is connected with the continuous zoom lens group.

Has the advantages that: when the utility model is used, when the position of the focusing lens group needs to be adjusted, the first servo motor works to drive the first screw rod to rotate, the first screw rod rotates to be matched with a screw hole formed on the lifting block on the first screw rod, so that the lifting block moves on the first screw rod, the arranged guide post is matched with a guide hole formed on the lifting block, so that the movement stability and the precision of the lifting block are higher, the lifting block drives the focusing lens group to move through the first connecting frame, thereby achieving the purpose of focusing, when the continuous zoom lens group needs to be adjusted, the second servo motor works to drive the second screw rod to rotate, the lifting block moves on the second screw rod under the rotation of the second screw rod and the matching of the arranged guide post and the guide hole, so that the movement stability and the precision of the lifting block are better, the utility model has novel structure and ingenious conception, can greatly optimize the working efficiency and enhance the experience of operators by controlling focusing and zooming through the servo motor, has more excellent adjustment precision and stability and is beneficial to use.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic view of the overall structure of the present invention;

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

FIG. 3 is a partial top view of the present invention;

reference numbers in the figures: 1. a housing; 2. an objective lens group; 3. a continuous zoom lens group; 4. a focusing lens group; 5. a focus lens adjusting mechanism; 51. a first fixed block; 52. a first lead screw; 53. a first bearing; 54. a lifting block; 55. a silk hole; 56. a guide post; 57. a guide hole; 58. a first connecting frame; 59. A first servo motor; 6. a continuous zoom lens group adjusting mechanism 6; 61. a second fixed block; 62. a second lead screw; 63. a second bearing; 64. a second servo motor; 65. and a second connecting frame.

Detailed Description

The following describes in further detail embodiments of the present invention with reference to fig. 1-3.

In a first embodiment, as shown in fig. 1 to 3, the present invention provides a focusing micro-motion device of an optical microscope, including a housing 1 disposed outside, an objective lens group 2 for use, a continuous zoom lens group 3 for use, and a zoom lens group 4 for use, further including a zoom lens adjusting mechanism 5, a continuous zoom lens group adjusting mechanism 6, a first fixing block 51, a first lead screw 52, a first bearing 53, a lifting block 54, a screw hole 55, a guide post 56, a guide hole 57, a first connecting frame 58, a first servo motor 59, a second fixing block 61, a second lead screw 62, a second bearing 63, a second servo motor 64, and a second connecting frame 65, wherein the zoom lens adjusting mechanism 5 is disposed on both sides of the zoom lens group 4, and the continuous zoom lens group adjusting mechanism 6 is disposed on both sides of the continuous zoom lens group 3;

the focusing lens adjusting mechanism 5 comprises a first fixing block 51, a first screw rod 52, a first bearing 53, a lifting block 54, a screw hole 55, guide posts 56, guide holes 57, a first connecting frame 58 and a first servo motor 59, wherein the two first fixing blocks 51 are fixed on the inner wall of the shell 1, the first screw rod 52 is installed in the middle of the first fixing block 51, the first screw rod 52 is connected with the first fixing block 51 through the first bearing 53, the guide posts 56 are arranged on the first fixing blocks 51 on the two sides of the first screw rod 52, the lifting block 54 is sleeved on the first screw rod 52 and the guide posts 56, the first connecting frame 58 is arranged in the middle of the inner side of the lifting block 54, the first connecting frame 58 is connected with the focusing lens group 4, and the first servo motor 59 is installed at one end of the first screw rod 52.

When in specific use: when the utility model is used, when the position of the focusing lens group 4 needs to be adjusted, the first servo motor 59 works to drive the first screw rod 52 to rotate, the first screw rod 52 rotates to be matched with the screw hole 55 formed on the lifting block 54 on the first screw rod, the lifting block 54 moves on the first screw rod 52, the arranged guide post 56 is matched with the guide hole 57 formed on the lifting block 54, the movement stability and the precision of the lifting block 54 are higher, the lifting block 54 drives the focusing lens group 4 to move through the first connecting frame 58, thereby achieving the purpose of focusing, when the continuous zoom lens group 3 needs to be adjusted, the second servo motor 64 works to drive the second screw rod 62 to rotate, the second screw rod 62 rotates to be matched with the screw hole 55 formed on the lifting block 54 on the second screw rod, the lifting block 54 moves on the second screw rod 62, the lifting block 54 has the advantages that the lifting block is novel in structure and ingenious in conception, focusing and zooming are controlled through the servo motor, working efficiency can be greatly optimized, experience of operators is enhanced, meanwhile, the adjusting precision and the adjusting stability are excellent, and the lifting block is beneficial to use.

Example two

In the first embodiment, the first lead screw 52 and the guide column 56 have insufficient lubricity, and as another preferred embodiment, the difference from the first embodiment is that the surfaces of the first lead screw 52 and the guide column 56 are both provided with grease, so that the lubricating performance of the first lead screw 52 and the guide column 56 is ensured, and the movement stability thereof is ensured.

EXAMPLE III

In the first embodiment, the elevator 54 is inconvenient to use, and referring to fig. 3, as another preferred embodiment, the difference from the first embodiment is that the elevator 54 has a fan-shaped structure, which facilitates the installation and use of the elevator 54.

Example four

In the first embodiment, the adjustment of the continuous zoom lens set 3 is inconvenient, referring to fig. 1 and fig. 2, as another preferred embodiment, the difference from the first embodiment is that the continuous zoom lens set adjustment mechanism 6 comprises two second fixed blocks 61 fixed on the inner wall of the housing 1, a second lead screw 62 mounted in the middle of the second fixed block 61, the second lead screw 62 connected with the second fixed blocks 61 through a second bearing 63, two guide posts 56 disposed on both sides of the second lead screw 62, a lifting block 54 sleeved on the second lead screw 62 and the guide posts 56, a second servo motor 64 mounted at one end of the second lead screw 62, and a second connecting frame 65 disposed on the inner side of the lifting block 54 on the second lead screw 62, when the continuous zoom lens set 3 is adjusted, the second servo motor 64 works to drive the second lead screw 62 to rotate, the second lead screw 62 rotates to be matched with a screw hole 55 formed on the lifting block 54, the lifting block 54 moves on the second screw rod 62, and the provided guide column 56 is matched with the guide hole 57, so that the lifting block 54 has better moving stability.

EXAMPLE five

In the first or fourth embodiment, the lifting block 54 is not convenient to lift, and referring to fig. 1 and 2, as another preferred embodiment, the difference from the first or fourth embodiment is that a thread hole 55 is formed at a position of the lifting block 54 corresponding to the first screw 52, and a guide hole 57 is formed at a position of the lifting block 54 corresponding to the guide post 56, so as to facilitate the lifting of the lifting block 54.

EXAMPLE six

In the first embodiment, in which the continuous variable power lens group 3 is inconvenient to couple, referring to fig. 1 and 2, as another preferred embodiment, a difference from the first embodiment is that one end of the second coupling frame 65 is coupled to the continuous variable power lens group 3, which facilitates coupling use of the continuous variable power lens group 3 to the second coupling frame 65.

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 changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. A focusing micro-motion device of an optical microscope comprises a shell (1) arranged outside, an objective lens group (2) used, a continuous zoom lens group (3) used and a focusing lens group (4) used, and is characterized in that: the zoom lens group adjusting mechanism is characterized by further comprising a zoom lens adjusting mechanism (5) and a continuous zoom lens group adjusting mechanism (6), wherein the zoom lens adjusting mechanism (5) is arranged on each of two sides of the zoom lens group (4), and the continuous zoom lens group adjusting mechanism (6) is arranged on each of two sides of the continuous zoom lens group (3);

the focusing lens adjusting mechanism (5) comprises a first fixed block (51), a first screw rod (52), a first bearing (53), a lifting block (54), a screw hole (55), a guide post (56), a guide hole (57), a first connecting frame (58) and a first servo motor (59), two first fixed blocks (51) are fixed at the inner wall of the shell (1), a first screw rod (52) is installed in the middle of each first fixed block (51), each first screw rod (52) is connected with the corresponding first fixed block (51) through a first bearing (53), guide columns (56) are arranged on the first fixed blocks (51) on the two sides of each first screw rod (52), lifting blocks (54) are sleeved on the first screw rods (52) and the guide columns (56), a first connecting frame (58) is arranged in the middle of the inner side of each lifting block (54), each first connecting frame (58) is connected with a focusing lens group (4), and a first servo motor (59) is installed at one end of each first screw rod (52).

2. The fine focusing mechanism for optical microscopes in accordance with claim 1, characterized in that the surfaces of the first lead screw (52) and the guide post (56) are provided with grease.

3. The fine focus adjustment device for optical microscopes in accordance with claim 1, characterized by the fact that the lifting block (54) has a fan-shaped structure.

4. The fine focusing mechanism of an optical microscope according to claim 1, wherein the continuous zoom lens group adjusting mechanism (6) comprises two second fixing blocks (61) fixed on the inner wall of the housing (1), a second lead screw (62) installed in the middle of the second fixing blocks (61), the second lead screw (62) connected with the second fixing blocks (61) through a second bearing (63), two guide posts (56) disposed on both sides of the second lead screw (62), a lifting block (54) sleeved on the second lead screw (62) and the guide posts (56), a second servo motor (64) installed at one end of the second lead screw (62), and a second connecting frame (65) disposed on the inner side of the lifting block (54) on the second lead screw (62).

5. The fine focusing mechanism according to claim 1 or 4, wherein the lifting block (54) has a threaded hole (55) at a position corresponding to the first lead screw (52), and the lifting block (54) has a guide hole (57) at a position corresponding to the guide post (56).

6. The fine focusing mechanism of an optical microscope according to claim 4, wherein one end of the second connecting frame (65) is connected to the zoom lens group (3).

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