CN216051343U

CN216051343U - Automatic image acquisition device and Z-axis focusing module thereof

Info

Publication number: CN216051343U
Application number: CN202122388228.0U
Authority: CN
Inventors: 李军; 陈小波; 李仕能
Original assignee: Hunan Pinsheng Biotechnology Co ltd
Current assignee: Hunan Pinsheng Biotechnology Co ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-03-15
Anticipated expiration: 2031-09-30

Abstract

The utility model provides an automatic image acquisition device and a Z-axis focusing module thereof, which comprise a base, a driving assembly, a transmission assembly, a guide rail assembly and an objective lens assembly, wherein the base is provided with a plurality of guide rails; wherein, objective lens subassembly includes the backplate and is the connecting plate of L form, the top surface undercut of base has the installation room, set up the first through-hole that supplies transmission assembly to run through on the lateral wall of being close to the backplate of installation room, the second through-hole has been seted up to the bottom surface of installation room, drive assembly includes the Z axle motor body that sets up along the Z axle direction, transmission assembly includes gap eliminating nut and motor connecting block, guide rail assembly includes first guide rail and second guide rail, set up to the lead screw form through the output shaft with Z axle motor body, the cooperation is used gap eliminating nut to eliminate the clearance, drive motor connecting plate linkage backplate and is followed guide rail assembly slidable ground sets up, thereby realize the accurate location to objective, introduce position compensation subassembly and spacing subassembly simultaneously, can further improve and detect the precision.

Description

Automatic image acquisition device and Z-axis focusing module thereof

Technical Field

The utility model relates to the technical field of microscopic shooting, in particular to an automatic image acquisition device and a Z-axis focusing module thereof.

Background

The pathological section is that part of the tissue or organ with pathological changes is treated by various chemicals and embedding method, and then is fixed and hardened, and cut into slices on a microtome, and the slices are adhered on a glass slide, and stained with various colors for examination under a microscope, so as to observe pathological changes and make pathological diagnosis, and provide help for clinical diagnosis and treatment. The automatic image acquisition device combines optical, mechanical and electrical technologies with cytological diagnosis technology, and determines whether cells are abnormal or cancerated by measuring a slide loaded with pathological sections, thereby making pathological diagnosis.

The traditional detection to loading has pathological section's slide generally adopts the microscope to detect, and the reciprocating of microscope objective needs to adjust, focus through manual adjustment and supplementary visual observation, need artifically load again after having detected a slice slide, focuses on the location again, complex operation, inefficiency and the detection precision can't guarantee.

Accordingly, there is a need for an automatic image capturing device and a Z-axis focusing module thereof to solve or at least alleviate the above-mentioned drawbacks.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide an automatic image acquisition device and a Z-axis focusing module thereof, which are used for solving the problems that the up-and-down movement of a traditional microscope objective needs to be adjusted through manual adjustment and visual observation assistance, manual reloading and focusing positioning are needed again after a slide glass is detected, the operation is complicated, the efficiency is low, and the detection precision cannot be guaranteed.

In order to achieve the aim, the utility model provides an automatic image acquisition device and a Z-axis focusing module thereof, which comprise a base, a driving assembly, a transmission assembly, a guide rail assembly and an objective lens assembly; wherein,

the objective lens assembly comprises a back plate and an L-shaped connecting plate; the connecting plate comprises a vertical end and a horizontal end which are arranged oppositely, the horizontal end is fixedly connected with an objective lens, and the vertical end is fixedly connected with the back plate;

an installation chamber for installing the driving assembly and the transmission assembly is recessed downwards from the top surface of the base, a first through hole for the transmission assembly to penetrate through is formed in the side wall, close to the back plate, of the installation chamber, and a second through hole is formed in the bottom surface of the installation chamber;

the driving assembly comprises a Z-axis motor body and a motor output shaft which has a preset length and extends along the height direction of the base; an external thread bulge with a preset lead is formed on the outer surface of the motor output shaft; the top of the mounting chamber is fixed with a bearing seat matched with the Z-axis motor body; the motor output shaft penetrates through the second through hole, and the tail end of the motor output shaft is rotatably arranged in the bearing seat;

the transmission assembly comprises a clearance eliminating nut sleeved on the outer surface of the motor output shaft and a motor connecting block; the motor connecting block comprises a first end and a second end which are oppositely arranged, the first end is fixedly connected with a flange plate of the anti-backlash nut, and the second end is fixedly connected with the back plate;

the guide rail assembly comprises a pair of crossed roller guide rails positioned between the base and the back plate, the crossed roller guide rails are arranged along the height direction of the base, and the crossed roller guide rails comprise a first guide rail and a second guide rail which are oppositely arranged; the first guide rail is fixedly connected with the side face, close to the base, of the back plate, and the second guide rail is fixedly connected with the side face, close to the back plate, of the base, so that the back plate can be slidably arranged along the second guide rail.

Preferably, the device also comprises a position compensation assembly, wherein the position compensation assembly comprises an L-shaped grating ruler fixing block and a reading head fixing block fixed on the base; the mounting side surface of the base comprises a first mounting side surface and a second mounting side surface, wherein the first mounting side surface is used for mounting the position compensation assembly and the second mounting side surface is used for mounting the limiting assembly; the first mounting side surface is in a step shape and comprises a first plane used for mounting the second guide rail and a second plane used for mounting the reading head fixing block; the grating ruler fixing block comprises a connecting end and a mounting end which are arranged oppositely, the connecting end is fixedly connected with the back plate, one side, close to the reading head fixing block, of the mounting end is provided with the grating rulers which are arranged along the height direction of the mounting end, and the reading head fixing block is fixedly connected with the reading head matched with the grating rulers.

Preferably, the mounting structure further comprises a limiting assembly, wherein the second mounting side surface is in a step shape and comprises a third plane for mounting the second guide rail and a fourth plane for mounting the limiting assembly; the limiting assembly comprises an upper limiting block, a lower limiting block and an L-shaped light blocking sheet which are sequentially arranged along the height direction of the fourth plane; wherein, go up the spacing piece with spacing piece fixed connection is down in on the fourth plane, the piece that is in the light includes relative stiff end and the sensitization end that sets up, the stiff end with backplate fixed connection, the sensitization end set up in go up the spacing piece and between the spacing, go up the spacing piece with have between the spacing piece down and predetermine spacing distance.

Preferably, the first mounting side surface and the second mounting side surface are symmetrically arranged on two sides of the base.

Preferably, a plurality of screw holes are formed in the bottom surface of the mounting chamber, and the bottom surface of the mounting chamber is connected with the top surface of the Z-axis motor body through screws.

Preferably, the cross section of the first through hole is rectangular, and the size of the cross section is set to be 24mm × 34 mm.

Preferably, a groove for the motor output shaft to penetrate through is formed in the middle of the first end of the motor connecting block.

Preferably, the preset limit distance is set to be 15-25 mm.

Preferably, the preset length is set to be 50-70 mm.

The utility model also provides an automatic image acquisition device, which comprises an acquisition device body and the Z-axis focusing module.

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

the utility model provides an automatic image acquisition device and a Z-axis focusing module thereof, which comprise a base, a driving assembly, a transmission assembly, a guide rail assembly and an objective lens assembly, wherein the base is provided with a plurality of guide rails; wherein, the objective lens component comprises a back plate and an L-shaped connecting plate, the top surface of the base is recessed downwards to form an installation chamber, the side wall of the installation chamber close to the back plate is provided with a first through hole for the transmission component to penetrate through, the bottom surface of the installation chamber is provided with a second through hole, the driving component comprises a Z-axis motor body arranged along the Z-axis direction, the transmission component comprises an anti-backlash nut and a motor connecting block, the guide rail component comprises a first guide rail and a second guide rail, the output shaft of the Z-axis motor body is set into a lead screw form, and a clearance eliminating nut is matched to eliminate the clearance, so that the motor connecting plate is driven to be linked with the back plate to be arranged along the guide rail component in a sliding way, thereby realize the accurate location to objective, introduce the position compensation subassembly simultaneously and can compensate to the ascending motion deviation of Z axle direction, further improve the position accuracy of Z axle focus module, improve and detect accurate measurement precision and efficiency. Through introducing spacing subassembly, can catch the upper and lower extreme position that objective removed accurately, improve focus, detection efficiency.

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 the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic overall structure diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of the overall structure at another viewing angle in an embodiment of the present invention;

FIG. 3 is a schematic overall structure diagram of an embodiment of the present invention from a further perspective;

FIG. 4 is a top view of an embodiment of the present invention;

FIG. 5 is an enlarged view of the point A in FIG. 4;

FIG. 6 is an enlarged view of the point B in FIG. 4;

fig. 7 is a schematic structural diagram of a motor connecting block in an embodiment of the utility model.

The objects, features and advantages of the present invention will be further explained with reference to the accompanying drawings.

The reference numbers illustrate:

a base 100; an installation chamber 110; screw holes 111; a first through-hole 112; a second through hole 113; a mounting side 120; a first mounting side 121; a first plane 1211; a second plane 1212; a second mounting side 122; a third plane 1221; a fourth plane 1222; a drive assembly 200; a Z-axis motor body 210; a motor output shaft 220; a bearing housing 230; a transmission assembly 300; an anti-backlash nut 310; a flange plate 320; a motor connecting block 330; a first end 331; a groove 332; a second end 333;

a rail assembly 400; a first guide rail 410; a second guide rail 420; an objective lens assembly 500; a back plate 510; a connecting plate 520; a vertical end 521; a horizontal end 522; an objective lens 530; a position compensation component 600; a grating scale fixing block 610; a connection end 611; a mounting end 612; a grating scale 620; a reading head fixing block 630; a reading head 640; a stop assembly 700; an upper limit block 710; a lower limit block 720; a light-blocking sheet 730; a fixed end 731; a photosensing end 732.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1-7, an embodiment of an automatic image capturing apparatus according to the present invention includes a base 100, a driving assembly 200, a transmission assembly 300, a guide assembly 400, and an objective lens assembly 500; wherein the objective lens assembly 500 comprises a back plate 510 and an L-shaped connecting plate 520; the connecting plate 520 includes a vertical end 521 and a horizontal end 522, which are oppositely disposed, the horizontal end 522 is fixedly connected with an objective lens 530, and the vertical end 521 is fixedly connected with the backplate 510. The connecting plate 520 is used for connecting the backplate 510 and the objective lens 530, so that the objective lens 530 is driven to move along the Z-axis direction by the movement of the backplate 510 along the Z-axis direction.

The top surface of the base 100 is recessed downward to form an installation chamber 110 for the driving assembly 200 and the transmission assembly 300 to be installed, a first through hole 112 for the transmission assembly 300 to pass through is formed in a side wall of the installation chamber 110 close to the back plate 510, and a second through hole 113 is formed in the bottom surface of the installation chamber 110. The second through hole 113 is used for mounting the driving assembly 200, that is, an output shaft of the Z-axis motor body 210 passes through the second through hole 113, and fixes the Z-axis motor body 210 to the bottom surface of the mounting chamber 110, the first through hole 112 is used for passing through the transmission assembly 300 and has enough space for the transmission assembly 300 to move up and down along the Z-axis direction, and it should be noted that the size of the first through hole 112 along the Z-axis direction should be matched with the detection requirement of the Z-axis focusing module, and should not be too large or too small.

The driving assembly 200 includes a Z-axis motor body 210 and a motor output shaft 220 having a predetermined length and extending in a height direction of the base 100; an external thread protrusion with a preset lead is formed on the outer surface of the motor output shaft 220; a bearing seat 230 matched with the Z-axis motor body 210 is fixed on the top of the mounting chamber 110; the motor output shaft 220 passes through the second through hole 113, and the end of the motor output shaft 220 is rotatably mounted in the bearing housing 230.

It is worth noting that the Z-axis motor body 210 is vertically arranged along the height direction, namely the Z-axis direction, so as to realize the up-and-down movement of the whole Z-axis focusing module driven by the forward rotation or the reverse rotation of the Z-axis driving motor body 210, and it is noted that the motor output shaft 220 of the Z-axis driving motor body 210 in the present application is set to be in a lead screw form, and the high-precision control of the objective lens 530 is realized by the high precision of the lead screw drive, wherein the preset length can be set according to the actual requirement, and the whole Z-axis focusing module can have a certain moving distance in the Z direction by setting the motor output shaft 220 with a certain preset length. In a specific embodiment, said predetermined length is set between 50-70 mm.

The transmission assembly 300 includes a backlash eliminating nut 310 sleeved on the outer surface of the motor output shaft 220, and a motor connecting block 330; the motor connecting block 330 includes a first end 331 and a second end 333 that are disposed opposite to each other, the first end 331 is fixedly connected to the flange plate 320 of the anti-backlash nut 310, and the second end 333 is fixedly connected to the back plate 510. It should be understood by those skilled in the art that, since the motor output shaft 220 is in the form of a lead screw, a gap is generated between the motor output shaft 220 and a nut during long-term use or when external load changes greatly, so that transmission precision is reduced, and in order to ensure transmission precision, the anti-backlash nut 310 is introduced, for example, a common compact anti-backlash nut on the market can be used, and the anti-backlash nut includes an anti-backlash nut body (not shown) and a flange 320, and the anti-backlash nut 310 can effectively eliminate the gap, improve transmission precision, and further ensure precision of image acquisition. As an example, when the motor output shaft 220 rotates forward, because the motor output shaft 220 is in threaded connection with the anti-backlash nut 310, and because the Z-axis motor body 210 is fixed to the mounting chamber 110, the anti-backlash nut 310 is driven to move toward the Z-axis motor body 210 by the rotation of the motor output shaft 220, so as to drive the motor connecting block 330 to move, the motor connecting block 330 drives the back plate 510 to move up and down, and further drives the objective lens 530 to move up and down, and thus, the rotation of the motor output shaft 220 is controlled by the external control system, and thus, accurate positioning focusing is achieved.

The guide rail assembly 400 includes a pair of cross roller guide rails (not shown) between the base 100 and the back plate 510, the cross roller guide rails being disposed along the height direction of the base 100, the cross roller guide rails including a first guide rail 410 and a second guide rail 420 disposed oppositely; the first guide rail 410 is fixedly connected to a side surface of the back plate 510 close to the base 100, and the second guide rail 420 is fixedly connected to a side surface of the base 100 close to the back plate 510, so that the back plate 510 is slidably disposed along the second guide rail 420. It should be noted that the mounting side 120 is a side close to the back plate 510, the fixing form between the first guide rail 410 and the side of the back plate 510 close to the base 100, and the fixing form between the second guide rail 420 and the side of the base 100 close to the back plate 510 include, but are not limited to, screw connection, bolt connection, welding, and the like, in a specific embodiment, the first guide rail 410 is connected to the side of the back plate 510 close to the base 100 through a screw, and the second guide rail 420 is connected to the side of the base 100 close to the back plate 510 through a screw, so that the Z-axis motor body 210 can rotate to drive the anti-backlash nut 310 to rotate, and the motor connecting block 330 is driven to move up and down, and the back plate 510 is driven to be slidably disposed along the second guide rail 420.

As a preferred embodiment of the present invention, the present invention further comprises a position compensation assembly 600, which includes an L-shaped grating ruler fixing block 610, and a reading head fixing block 630 fixed on the base 100; the mounting side 120 of the base 100 comprises a first mounting side 121 for mounting the position compensation assembly 600 and a second mounting side 122 for mounting the position limiting assembly 700, which are oppositely arranged; the first mounting side surface 121 is stepped and comprises a first plane 1211 for mounting the second guide rail 420 and a second plane 1212 for mounting the reading head fixing block 630; the grating ruler fixing block 610 comprises a connecting end 611 and a mounting end 612 which are arranged oppositely, the connecting end 611 is fixedly connected with the back plate 510, one side, close to the reading head fixing block 630, of the mounting end 612 is provided with the grating rulers 620 which are arranged along the height direction of the mounting end 612, and the reading head fixing block 630 is fixedly connected with the reading heads 640 which are matched with the grating rulers 620.

It should be understood by those skilled in the art that when the Z-axis driving motor drives the motor connecting block 330 to move the backplate 510 along the second guiding rail 420, a motion deviation is caused by long-term use or load variation, and in order to detect and compensate the motion deviation, the position precision and the focusing precision of the Z-axis focusing module are further improved, and the position compensation assembly 600 is introduced in the present embodiment. It should be noted that the base 100 is in a fixed form, the reading head fixing block 630 is fixed on the second plane 1212 of the base 100, so the reading head fixing block 630 is mounted on a relatively stationary component, and the grating ruler fixing block 610 is fixed on the back plate 510 capable of moving up and down, so the grating ruler 620 and the reading head 640 are in a relative movement arrangement form along the Z-axis direction, thereby compensating the movement deviation in the Z-axis direction, further improving the position accuracy of the Z-axis focusing module, and improving the precision measurement accuracy and efficiency.

As a preferred embodiment of the present invention, the present invention further comprises a position-limiting assembly 700, wherein the second mounting side surface 122 is stepped, and comprises a third plane 1221 for mounting the second rail 420 and a fourth plane 1222 for mounting the position-limiting assembly 700; the limiting assembly 700 comprises an upper limiting block 710, a lower limiting block 720 and an L-shaped light blocking sheet 730 which are sequentially arranged along the height direction of the fourth plane 1222; the upper limiting block 710 and the lower limiting block 720 are fixedly connected to the fourth plane 1222, the light blocking sheet 730 includes a fixed end 731 and a photosensitive end 732, which are oppositely disposed, the fixed end 731 is fixedly connected to the back plate 510, the photosensitive end 732 is disposed between the upper limiting block 710 and the limiting block, and a preset limiting distance is provided between the upper limiting block 710 and the lower limiting block 720.

It should be noted that, since the present embodiment is a precision instrument, the position adjustment distance of the objective lens 530 in the Z-axis direction is small, and the movement of the objective lens 530 is not prevented from exceeding an unnecessary range, so as to improve the efficiency of the focus detection, it should be noted that the limiting assembly 700 is further introduced in the present embodiment, and the light blocking sheet 730 is fixed on the back plate 510, so that the light blocking sheet 730 will move up and down synchronously with the back plate 510, and the upper limiting block 710 and the lower limiting block 720 are fixed on the fourth plane 1222 of the base 100, so that the upper limiting block 710 and the lower limiting block 720 will remain stationary, and the light blocking sheet 730 can accurately capture the upper limit position and the lower limit position by sensing in a photoelectric manner, for example, so as to control the movement limit position of the objective lens 530 in the Z-axis direction. Further, the preset limiting distance is set to be 15-25 mm, and it can be understood that the specific numerical value of the preset limiting distance can be set according to actual needs.

Further, the first mounting side 121 and the second mounting side 122 are symmetrically disposed at both sides of the base 100.

Further, a plurality of screw holes 111 are formed in a bottom surface of the mounting chamber 110, and the bottom surface of the mounting chamber 110 is connected to a top surface of the Z-axis motor body 210 by screws. It is understood that, in other embodiments, the bottom surface of the mounting chamber 110 may also be connected to the top surface of the Z-axis motor body 210 by bolts, welding, etc., which may be set according to actual requirements.

As a specific example of the present invention, the cross section of the first through hole 112 is rectangular, and the size of the cross section is set to be 24mm × 34 mm. It is understood that the cross section of the first through hole 112 may have other shapes, including but not limited to a rectangular shape in the present embodiment, as long as the motor connecting block 330 has enough space to move.

In a preferred embodiment of the present invention, a groove 332 for the motor output shaft 220 to pass through is formed in a middle portion of the first end 331 of the motor connecting block 330. Referring to fig. 1 again, the motor output shaft 220 penetrates the groove 332 by forming the groove 332, so that the motor connecting block 330 is positioned between the anti-backlash nut 310 and the bottom surface of the mounting chamber 110, thereby fully utilizing the spatial arrangement.

Further, the preset length is set to be 50-70 mm. It is understood that, in other embodiments, the preset length may also be set between other ranges, and the specific setting should be according to actual needs. It should be noted that the motor output shaft 220 of the Z-axis motor body 210 is provided to have a long length, so that the automatic image capturing apparatus has a sufficient moving stroke in the Z-axis direction.

The utility model also provides an automatic image acquisition device, which comprises an acquisition device body and the Z-axis focusing module. For example, in a specific embodiment, the collecting device body further includes an X-axis motor body and a Y-axis motor body, and the X-axis motor body, the Y-axis motor body and the Z-axis motor body are vertically arranged two by two. Through the mutual cooperation between X axle driving motor body, Y axle driving motor body and Z axle driving motor body 210, can realize the position control of whole automatic image acquisition device in three-dimensional space, satisfy the needs of focus, detection, scanning.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A Z-axis focusing module for an automatic image acquisition device is characterized by comprising a base, a driving assembly, a transmission assembly, a guide rail assembly and an objective lens assembly; wherein,

2. The Z-axis focusing module of claim 1, further comprising a position compensation assembly comprising an L-shaped grating scale fixing block, a reading head fixing block fixed on the base; the mounting side surface of the base comprises a first mounting side surface and a second mounting side surface, wherein the first mounting side surface is used for mounting the position compensation assembly and the second mounting side surface is used for mounting the limiting assembly; the first mounting side surface is in a step shape and comprises a first plane used for mounting the second guide rail and a second plane used for mounting the reading head fixing block; the grating ruler fixing block comprises a connecting end and a mounting end which are arranged oppositely, the connecting end is fixedly connected with the back plate, one side, close to the reading head fixing block, of the mounting end is provided with the grating rulers which are arranged along the height direction of the mounting end, and the reading head fixing block is fixedly connected with the reading head matched with the grating rulers.

3. The Z-axis focus module of claim 2, further comprising a stop assembly, wherein the second mounting side is stepped and comprises a third plane for mounting the second rail and a fourth plane for mounting the stop assembly; the limiting assembly comprises an upper limiting block, a lower limiting block and an L-shaped light blocking sheet which are sequentially arranged along the height direction of the fourth plane; wherein, go up the spacing piece with spacing piece fixed connection is down in on the fourth plane, the piece that is in the light includes relative stiff end and the sensitization end that sets up, the stiff end with backplate fixed connection, the sensitization end set up in go up the spacing piece and between the spacing, go up the spacing piece with have between the spacing piece down and predetermine spacing distance.

4. The Z-axis focusing module of claim 3, wherein the first mounting side and the second mounting side are symmetrically disposed on both sides of the base.

5. The Z-axis focusing module of claim 1, wherein a plurality of screw holes are formed in the bottom surface of the mounting chamber, and the bottom surface of the mounting chamber is connected with the top surface of the Z-axis motor body through screws.

6. The Z-axis focusing module of claim 1, wherein the first through hole has a rectangular cross section, and the cross section is sized to be 24mm x 34 mm.

7. The Z-axis focusing module of any one of claims 1 to 6, wherein a groove for the motor output shaft to pass through is formed in the middle of the first end of the motor connecting block.

8. The Z-axis focusing module of claim 3, wherein the predetermined limiting distance is set to be between 15 mm and 25 mm.

9. The Z-axis focusing module of any one of claims 1-6, wherein the predetermined length is set between 50 mm and 70 mm.

10. An automated image capture device comprising a capture device body, further comprising the Z-axis focus module of any of claims 1-9.