High-precision objective table adjusting device

Abstract

The utility model discloses a high-precision objective table adjusting device which comprises an objective table connected with an adjusting unit through a bracket; the adjusting unit is connected with the microscope main body and comprises a transmission mechanism, a sliding rail, a first adjusting seat, a plurality of V-shaped strips, a ball and a bead separating piece, a first sliding groove and a first groove are formed in the microscope main body, the transmission mechanism is connected with the microscope main body, the sliding rail is arranged in the first sliding groove and driven by the transmission mechanism to ascend and descend, and the sliding rail is further connected with the bracket; the slide rail, the microscope body and the first adjusting seat are both provided with V-shaped grooves, the V-shaped strips are arranged in the V-shaped grooves in a one-to-one correspondence mode, the ball is located between the two oppositely-arranged V-shaped strips and limited through the bead separating piece, the microscope body is further provided with a plurality of screw holes, and the first adjusting seat is adjusted through screws penetrating through the screw holes. According to the device, the adjustment precision and stability of the objective table can be improved, the overall operation of the microscope is more convenient, and the observation imaging effect is better.

Description

Technical Field

[0001] The utility model belongs to the technical field of microscopes, and in particular relates to a high-precision stage adjusting device. Background Art

[0002] A microscope is a precision optical instrument that uses optical principles to magnify and image tiny objects that are indistinguishable to the human eye, allowing for the observation of fine structural information. It is widely used in fields such as medicine, biology, physics, and pathology, becoming an indispensable tool in scientific research and medical diagnosis. The main components of a microscope include the eyepiece, objective lens, and stage. The rational design and configuration of these components enable the microscope to achieve high-resolution imaging under various observation conditions.

[0003] However, the stage lifting mechanism of existing microscopes has deficiencies in adjustment accuracy and stability, which affects the observation effect of the sample to be tested. Furthermore, existing microscopes are not easy to transport, and the converters mostly use fixed connections. After installation, the converter lacks flexibility and cannot adapt to different experimental conditions, which limits its scope of application. In addition, there is usually a deviation between the lower light source and the optical axis, which will cause the light to not be accurately focused on the sample to be tested, thereby affecting the focusing effect of the light collecting mirror and reducing the brightness and clarity of the image; and the operation of the whole machine is relatively cumbersome, and the requirements for the operator are high. Utility Model Content

[0004] The purpose of the present invention is to solve the above problems and propose a high-precision stage adjustment device, which helps to improve the adjustment accuracy and stability of the stage, and makes the overall operation of the microscope more convenient and the observation imaging effect better.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] The utility model provides a high-precision stage adjustment device, which is applied to a microscope. The microscope includes a microscope body. The high-precision stage adjustment device includes a stage, a bracket, and an adjustment unit, wherein:

[0007] a loading platform connected to the adjustment unit via a bracket;

[0008] The adjustment unit is connected to the microscope body and includes a transmission mechanism, a slide rail, a first adjustment seat, several V-shaped strips, several ball bearings and several bead separators. The microscope body is provided with a first slide groove and a first groove that are interconnected. The transmission mechanism is connected to the microscope body. The slide rail is built into the first slide groove and driven up and down by the transmission mechanism. The slide rail is also connected to the bracket. The first adjustment seat is built into the first groove. A third V-shaped groove is respectively provided on two opposite side walls of the slide rail. A second V-shaped groove is arranged opposite to one of the third V-shaped grooves on the microscope body. A first V-shaped groove is arranged opposite to the other third V-shaped groove on the first adjustment seat. The V-shaped strips are arranged in each V-shaped groove one by one. The ball bearings are respectively arranged between the two oppositely arranged V-shaped strips and limited by the bead separators. The microscope body is also provided with several screw holes. The first adjustment seat is adjusted by screws passing through the screw holes, thereby adjusting the verticality and damping of the slide rail.

[0009] Preferably, the screw holes are correspondingly opened on the front wall and the side wall of the first groove, and there are multiple screw holes.

[0010] Preferably, the transmission mechanism is a rack and pinion mechanism.

[0011] Preferably, the microscope body is further provided with an integrally connected handle located on the upper side.

[0012] Preferably, the microscope further comprises an objective lens conversion unit, which is mounted on the microscope body and located above the stage.

[0013] Preferably, the objective lens conversion unit includes an adapter, a connecting seat, a converter and several objective lenses. A first through hole for receiving the adapter is provided on the microscope body, a second through hole for receiving the connecting seat is provided on the adapter, and a third through hole is provided on the connecting seat. The converter is connected to the lower end of the connecting seat, and each objective lens is connected to the converter. The first through hole, the second through hole and the third through hole are all coaxially arranged with the objective lens currently in use.

[0014] Preferably, the microscope also includes a circuit control module, which includes a knob coding switch, a display panel, an upper light source, a lower light source, a battery and a power interface board, and the knob coding switch, the upper light source, the lower light source, the battery and the power interface board are all electrically connected to the display panel.

[0015] Preferably, the microscope also includes a lower light source centering unit, which includes a mounting seat and a second adjustment seat. The second adjustment seat is provided with a coaxial annular conical groove, and the mounting seat is provided with a plurality of annularly distributed second mounting holes. The lower light source is installed on the second adjustment seat. The second adjustment seat is sleeved in the mounting seat and is centered by means of a screw passing through the second mounting hole, and the screw is in contact with the inclined line of the annular conical groove.

[0016] Preferably, the microscope also includes a focusing unit and a collecting lens. The collecting lens is installed on the microscope body. The focusing unit is installed on and below the stage. The light emitted by the lower light source passes through the collecting lens and the focusing unit in turn to reach the sample to be tested.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1) This high-precision stage adjustment device uses a V-groove and ball bearing combination and adjusts the verticality and damping of the slide rail by adjusting the first adjustment seat. This effectively improves the stability and accuracy of the stage lifting and lowering, ensuring that the sample to be tested maintains good stability when moving up and down, thereby improving the reliability of observation results, meeting the needs of high-precision experiments, and reducing the difficulty of production and assembly.

[0019] 2) Compared to the prior art where the microscope body and the converter are threadedly connected, this objective lens conversion unit allows the operator to quickly and conveniently switch the tilt direction of the converter, thereby improving the flexibility of the microscope and supporting the operator's efficiency and convenience in conducting experiments under different conditions;

[0020] 3) Compared with existing fixed lower light source designs, this microscope achieves precise alignment of the light source with the microscope optical axis through the lower light source centering unit, solving the problem of optical axis deviation caused by the fixed light source in the existing technology. The position of the lower light source can be easily adjusted by adjusting the screw, ensuring that the light is evenly concentrated on the sample to be tested, optimizing the lighting conditions, and facilitating later disassembly and maintenance. The structure is simpler and easier to operate.

[0021] 4) The handle of the microscope body adopts a crossbeam structure with fixed ends, and a stress dispersion structure is designed at the part where the crossbeam connects to the microscope body. That is, a variable radius fillet design is adopted. This takes into account both aesthetics and ergonomic design. The force exerted on the handle can be evenly transmitted to the microscope body, avoiding stress concentration, thereby improving the strength and stability of the connection part and ensuring that the overall structure of the microscope remains stable during long-term use. In addition, the fusion of the handle and the microscope body enables integrated production, which simplifies the assembly process, improves production efficiency and reduces production costs.

[0022] 5) The integrated knob coding switch can simultaneously realize the switching and brightness adjustment of the upper light source and the lower light source, which greatly simplifies the operation complexity of the operator and improves the convenience of use. The operator can easily adjust the brightness through the knob coding switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural diagram of the microscope of the utility model;

[0024] Figure 2 This is the main view of the microscope of the utility model;

[0025] Figure 3 This is a schematic diagram of the assembly of the microscope body of the utility model and the lifting platform without the stage;

[0026] Figure 4 For this utility model Figure 3 The main view;

[0027] Figure 5 For this utility model Figure 4 AA section view;

[0028] Figure 6 For this utility model Figure 5 A partial enlarged view of FIG1;

[0029] Figure 7 This is a schematic diagram of the assembly of the microscope body and the objective lens conversion unit of the present invention;

[0030] Figure 8 For this utility model Figure 7 BB cross-sectional view;

[0031] Figure 9 For this utility model Figure 8 Partial enlarged view II;

[0032] Figure 10 This is a right side view (in an outward tilted state) of the microscope after removing the converter decorative cover;

[0033] Figure 11 This is a right side view (inward tilted state) of the microscope after removing the converter decorative cover;

[0034] Figure 12 This is a structural diagram of the lower light source centering unit of the utility model;

[0035] Figure 13 This is a structural diagram of the circuit control module of the utility model.

[0036] Explanation of the accompanying symbols: 1. Microscope body; 2. Lifting platform; 3. Condensing unit; 4. Objective lens conversion unit; 5. Collecting lens; 6. Circuit control module; 7. Lower light source centering unit; 11. Handle; 21. Stage; 22. Bracket; 23. Adjustment unit; 231. Slide rail; 232. First adjustment seat; 233. V-shaped bar; 234. Ball; 235. First V-shaped groove; 236. Second V-shaped groove; 237. Third V-shaped groove; 238. Bead sheet; 239. Screw hole; 41. Adapter seat; 42. Connecting seat; 43. Converter; 44. Objective lens; 61. Knob coding switch; 62. Display panel; 63. Upper light source; 71. Mounting seat; 72. Second adjustment seat; 73. Lower light source; 721. Annular cone groove. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0038] It should be noted that when a component is referred to as being "connected" to another component, it may be directly connected to the other component or there may be an intermediate component. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art in the art of this application. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0039] like Figure 1-13 As shown, a high-precision stage adjustment device is applied to a microscope, the microscope including a microscope body 1, the high-precision stage adjustment device including a stage 21, a bracket 22 and an adjustment unit 23, wherein:

[0040] The loading platform 21 is connected to the adjustment unit 23 via the bracket 22;

[0041] The adjustment unit 23 is connected to the microscope body 1 and includes a transmission mechanism, a slide rail 231, a first adjustment seat 232, a plurality of V-shaped bars 233, a plurality of ball bearings 234, and a plurality of bead separators 238. The microscope body 1 is provided with a first slide groove and a first groove that are interconnected. The transmission mechanism is connected to the microscope body 1. The slide rail 231 is built into the first slide groove and is driven up and down by the transmission mechanism. The slide rail 231 is also connected to the bracket 22. The first adjustment seat 232 is built into the first groove. The two opposite side walls of the slide rail 231 are respectively provided with third V-shaped grooves 237. A second V-shaped groove 236 is provided on the microscope body 1 and is arranged opposite to one of the third V-shaped grooves 237 thereof. A first V-shaped groove 235 is provided on the first adjustment seat 232 and is arranged opposite to another third V-shaped groove 237. V-shaped strips 233 are arranged in each V-shaped groove in a one-to-one correspondence. Balls 234 are respectively arranged between the two oppositely arranged V-shaped strips 233 and are limited by bead separators 238. A plurality of screw holes 239 are also provided on the microscope body 1. The first adjustment seat 232 is adjusted by screws passing through the screw holes 239, thereby adjusting the verticality and damping of the slide rail 231.

[0042] For ease of explanation, the following Figure 1 The directions shown are explained as follows, that is, the up and down direction is the Z direction, the front and back direction is the Y direction, the left and right direction is the X direction, the up, front and right side are the positive directions, and the down, back and left side are the negative directions.

[0043] Among them, the high-precision stage adjustment device is Figure 1 The lifting platform 2 is designed to adjust the distance between the sample to be tested and the microscope objective lens by controlling the lifting and lowering of the stage 21, thereby obtaining the best imaging effect. The lifting platform 2 includes the stage 21, a bracket 22, and an adjustment unit 23, wherein the adjustment unit 23 includes a transmission mechanism, a slide rail 231, a first adjustment seat 232, a plurality of V-shaped bars 233, a plurality of balls 234, and a plurality of bead separators 238. The slide rail 231 is embedded in the first slide groove, and the first adjustment seat 232 is embedded in the first groove. A third V-shaped groove 237 is respectively formed on the two opposite side walls (such as the left and right side walls) of the slide rail 231. The microscope body 1 is provided with a second V-shaped groove 236 arranged opposite to the third V-shaped groove 237. The first adjustment seat 232 is provided with a first V-shaped groove 235 arranged opposite to the other third V-shaped groove 237. If the first groove is formed on the right side of the first slide groove, then the first V-shaped groove 235 is formed on the left side of the first adjustment seat 232. The slide rail 231 is a moving component driven by a transmission mechanism, supporting the carriage 22 and stage 21 and enabling their movement in the Z-axis direction (i.e., vertical direction). A third V-shaped groove 237 is defined on each side of the slide rail 231, which mates with the V-shaped strips 233. The point contact of the balls 234 enables smooth sliding. The V-shaped strips 233 achieve a lower surface roughness and, if damaged, are easily and cost-effectively replaced.

[0044] Five balls 234 are used to create point contact between the two pairs of V-shaped bars 233 on either side of the slide rail 231. This design effectively reduces friction and ensures smooth movement of the loading platform 21. The ball bearings 234 are secured within 2.5mm diameter grooves on the 0.5mm thick brass bead plate 238, with a spacing of 4mm between them. This design ensures uniform force on the contact surface between the slide rail 231 and the V-shaped bars 233, allowing the loading platform 21 to move more smoothly.

[0045] A first adjustment seat 232 is mounted to the right side of the slide rail 231 and controls the damping of the stage 21's elevation and its parallelism at different heights. Screw holes 239 are also provided on the front and right walls of the microscope body 1, corresponding to the first recess. These screws adjust the position of the first adjustment seat 232, and thus the position of the ball bearing 234. Tightening the screws increases the pressure on the ball bearing 234 and the friction, thereby ensuring more precise and stable elevation of the stage 21.

[0046] Each V-groove cooperates with the V-shaped bar 233, achieving smooth lifting and lowering through point contact of the ball bearings 234. By adjusting the depth of the adjustment screws to adjust the first adjustment seat 232, the operator can precisely control the friction during the lifting and lowering of the platform 21, thereby precisely controlling the damping and parallelism of the lifting motion of the platform 21, and thus adjusting the lifting speed and stability of the platform 21. This design simplifies the lifting structure of the platform 21, achieving the same function with fewer parts, reducing the adverse effects of dynamic friction, lowering costs, and simplifying assembly.

[0047] In one embodiment, multiple screw holes 239 are provided on the front and side walls of the first groove. For example, two 2.5 mm screw holes are provided on the front wall of the microscope body 1 corresponding to the first groove, which are used to secure the position in the Y direction using GB77 screws, thereby ensuring that the spatial position of the ball 234 in the Y direction remains consistent. In addition, three 3 mm screw holes are provided on the right wall of the microscope body 1 corresponding to the first groove, which are used to adjust the position of the ball 234 in the X direction using GB78 screws. When the operator tightens the screws, the pressure on the ball 234 increases, and the friction force also increases accordingly, thereby making the raising and lowering of the stage 21 more precise and stable.

[0048] In one embodiment, the transmission mechanism is a rack and pinion mechanism. The transmission mechanism may also be a pneumatic lifting mechanism, a hydraulic lifting mechanism, or an electromagnetic drive mechanism, which can achieve smooth and rapid lifting operations, or other existing linear transmission mechanisms may also be used.

[0049] In one embodiment, the microscope body 1 is further provided with an integrally connected handle 11 located on the upper side. The handle 11 of the microscope body 1 utilizes a crossbeam structure with fixed ends. A stress-dispersing structure is designed at the junction of the crossbeam and the microscope body 1, employing a variable-radius chamfered design. This design balances aesthetics and ergonomics, ensuring that forces acting on the handle are evenly transferred to the microscope body 1, avoiding stress concentration at a single point. This improves the strength and stability of the connection and ensures the stability of the overall microscope structure during long-term use. Furthermore, the integration of the handle and the microscope body 1 enables integrated production, simplifying the assembly process, improving production efficiency, and reducing production costs.

[0050] In one embodiment, the microscope further includes an objective lens switching unit 4, which is mounted on the microscope body 1 and located above the stage 21. The objective lens switching unit 4 is used to switch between different objective lenses to detect the sample to be tested.

[0051] In one embodiment, the objective lens conversion unit 4 includes an adapter 41, a connecting seat 42, a converter 43 and several objective lenses 44. A first through hole for receiving the adapter 41 is provided on the microscope body 1, a second through hole for receiving the connecting seat 42 is provided on the adapter 41, a third through hole is provided on the connecting seat 42, the converter 43 is connected to the lower end of the connecting seat 42, and each objective lens 44 is connected to the converter 43. The first through hole, the second through hole and the third through hole are all coaxially arranged with the objective lens 44 currently in use.

[0052] The objective lens conversion unit 4 is used to connect the converter assembly of the microscope and the microscope body 1, allowing the operator to adjust the tilt direction of the converter assembly as needed, such as to achieve an inward or outward tilt state. The objective lens conversion unit 4 includes an adapter 41, a connecting seat 42 and a converter assembly. The converter assembly includes a converter 43 and a plurality of objective lenses 44. The objective lenses 44 are connected to the bottom of the converter 43 by threads. The adapter 41 is mounted on the microscope body 1 through three threaded holes, and the connecting seat 42 is mounted inside the adapter 41, that is, it is penetrated by the first through hole. The lower end of the connecting seat 42 is an external thread structure and is connected to the converter 43. The first through hole and the second through hole are preferably stepped holes. By manually rotating the connecting seat 42 around the Z axis, the converter assembly can be flexibly switched between the outward and inward tilt states.

[0053] By combining connector 42 with the converter assembly, the converter assembly can be flexibly switched between outward and inward tilt at any time. The converter assembly is secured to the interior of adapter 41 via connector 42. When the operator needs to change the microscope's observation angle, they can quickly adjust the converter assembly's tilt by rotating connector 42, enabling flexible switching for different experimental conditions. This design allows the operator to quickly adjust the microscope's observation angle based on different experimental requirements, ensuring flexibility and significantly improving the microscope's suitability and convenience in various experimental environments.

[0054] It is easy to imagine that the connection base 42 can also be replaced with a magnetic connection device to realize the installation and switching of the converter assembly. This method connects and disconnects the converter assembly through magnetic force, which can provide a fast and convenient switching function.

[0055] In one embodiment, the microscope also includes a circuit control module 6, which includes a knob coding switch 61, a display panel 62, an upper light source 63, a lower light source 73, a battery and a power interface board. The knob coding switch 61, the upper light source 63, the lower light source 73, the battery and the power interface board are all electrically connected to the display panel 62.

[0056] The circuit control module 6 is responsible for power management and light source adjustment of the entire microscope, and also provides information display function. This module includes a knob coding switch 61, a display panel 62, an upper light source 63, a lower light source 73, a battery, and a power interface board.

[0057] The display panel 62 is one of the core components of the module. It is directly connected to the knob coding switch 61, the upper light source 63, the lower light source 73, the battery and the power interface board, and is responsible for the brightness control and power supply mode display of the light source. The display panel 62 integrates multiple functions, including: displaying the brightness percentage of the upper light source 63 and the lower light source 73, displaying the battery power and the power supply mode (such as whether to use batteries or external power supply), and the power interface board is used for external power supply. Through the display panel 62, the operator can monitor the working state of the microscope in real time to ensure that the brightness and power supply mode of the light source are within a controllable range. The battery and the knob coding switch 61 are both connected to the display panel 62.

[0058] The illumination system of the microscope includes two upper and lower light sources (upper light source 63 and lower light source 73). The upper light source 63 is used to illuminate the upper surface of the sample to be tested, while the lower light source 73 illuminates the sample to be tested through the bottom. The switching and brightness adjustment of the upper light source 63 and the lower light source 73 are all adjusted by the knob coding switch 61. For example, by pressing the knob coding switch 61, you can switch to use the upper light source 63 or the lower light source 73, and rotate the knob coding switch 61 to adjust the brightness of the corresponding light source. The brightness range is adjusted according to the needs of the operator to ensure that the sample to be tested can be clearly seen under different light source intensities. This integration not only simplifies the operational complexity of light source adjustment, but also reduces the number of parts, reduces the risk of failure and production costs.

[0059] It is easy to imagine that switching between the upper light source 63 and the lower light source 73 and brightness adjustment can also provide an intuitive operation method through a graphical interface. For example, the operator can directly adjust it through a touch screen, the display panel 62 can be directly a touch screen, or a display screen electrically connected to the display panel 62 can be used as a touch screen for operation.

[0060] In one embodiment, the microscope also includes a lower light source centering unit 7, which includes a mounting seat 71 and a second adjustment seat 72. The second adjustment seat 72 is provided with a coaxially arranged annular conical groove 721, and the mounting seat 71 is provided with a plurality of annularly distributed second mounting holes. The lower light source 73 is installed on the second adjustment seat 72. The second adjustment seat 72 is sleeved in the mounting seat 71 and is centered by a screw passing through the second mounting hole, and the screw is in contact with the inclined line of the annular conical groove 721.

[0061] The lower light source centering unit 7 is used to connect the microscope's lower light source 73 to the microscope body 1, making it easier for assembly workers and operators to adjust the position of the lower light source 73 in the X and Y directions. The module includes a mounting base 71 and a second adjustment base 72, into which the lower light source 73 can be built.

[0062] The mounting base 71 is a key bearing component of the module, which is used to connect the lower light source 73 to the microscope body 1. The mounting base 71 is fixed to the lower wall of the microscope body 1 by three screws, providing stable fixed support. The lower light source 73 is fixed to the second adjustment base 72 using three screws. In order to ensure that the lower light source 73 can be accurately adjusted in the X and Y directions, the side wall of the mounting base 71 is provided with three annular evenly distributed threaded holes for mounting screws, and the chamfer slope of the annular cone groove 721 of the second adjustment base 72 is consistent with the chamfer slope of the screw end, so that these screws can be tightened to the center by rotating the screw. The contact form of the screw end and the second adjustment base 72 is line contact, controlling the precise movement of the lower light source 73 in the X and Y directions. This design provides a convenient adjustment means for the operator, which not only ensures the accuracy of the adjustment, but also reduces the complexity of assembly and operation. It is simple in structure and easy to operate, avoids the problems of complex multi-axis adjustment mechanism and high maintenance cost in the prior art, and provides a more efficient microscope operation experience for the operator. It is easy to understand that when the annular conical groove 721 is not provided on the second adjustment seat 72 , the screw passing through the second mounting hole can also be adjusted by directly pressing against the cylinder wall of the second adjustment seat 72 .

[0063] In one embodiment, the microscope further includes a focusing unit 3 and a light collecting lens 5. The light collecting lens 5 is mounted on the microscope body 1, and the light collecting unit 3 is mounted on the stage 21 and is located below the stage 21. The light emitted by the lower light source 73 passes through the light collecting lens 5 and the light collecting unit 3 in sequence to reach the sample to be tested. The light collecting unit 3 can be a structure of existing technology, such as a light collecting lens formed by a lens barrel and several lenses of a built-in lens barrel, etc. It is preferably a light collecting unit 3 in which the light collecting lens can be raised and lowered to adjust the focus, or it can also be designed according to actual needs. The lower light source centering unit 7 can realize precise adjustment of the lower light source 73 in the X and Y directions through three screws, so that the lower light source 73 can be completely aligned with the optical axis of the light collecting lens 5, ensuring that the light is focused on the target area of ​​the sample to be tested.

[0064] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0065] The above-described embodiments merely represent specific and detailed examples of the present application and should not be construed as limiting the scope of the present application. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the spirit of the present application, and such modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present application shall be determined by the appended claims.

Claims

1. A high-precision stage adjustment device, applied to a microscope, the microscope comprising a microscope body (1), characterized in that: The high-precision stage adjustment device comprises a stage (21), a bracket (22) and an adjustment unit (23), wherein: The loading platform (21) is connected to the adjustment unit (23) via the bracket (22); The adjustment unit (23) is connected to the microscope body (1), and includes a transmission mechanism, a slide rail (231), a first adjustment seat (232), a plurality of V-shaped bars (233), a plurality of ball bearings (234) and a plurality of bead separating pieces (238). The microscope body (1) is provided with a first slide groove and a first groove that are interconnected. The transmission mechanism is connected to the microscope body (1). The slide rail (231) is built into the first slide groove and is driven to rise and fall by the transmission mechanism. The slide rail (231) is also connected to the bracket (22). The first adjustment seat (232) is built into the first groove. A third V-shaped groove (237) is respectively provided on two opposite side walls of the slide rail (231). The microscope body (1) is provided with a second V-shaped groove (236) arranged opposite to one of the third V-shaped grooves (237); the first adjustment seat (232) is provided with a first V-shaped groove (235) arranged opposite to the other third V-shaped groove (237); the V-shaped strips (233) are arranged in each of the V-shaped grooves in a one-to-one correspondence; the balls (234) are respectively arranged between the two oppositely arranged V-shaped strips (233) and are limited by the bead separation sheet (238); the microscope body (1) is also provided with a plurality of screw holes (239); the first adjustment seat (232) is adjusted by screws passing through the screw holes (239), thereby adjusting the verticality and damping of the slide rail (231).

2. The high-precision stage adjustment device according to claim 1, wherein: The screw holes (239) are correspondingly opened on the front wall and the side wall of the first groove, and are multiple.

3. The high-precision stage adjustment device according to claim 1, wherein: The transmission mechanism is a rack and pinion mechanism.

4. The high-precision stage adjustment device according to claim 1, wherein: The microscope body (1) is also provided with an integrally connected handle (11) located on the upper side.

5. The high-precision stage adjustment device according to claim 1, wherein: The microscope further comprises an objective lens conversion unit (4), which is mounted on the microscope body (1) and located above the objective stage (21).

6. The high-precision stage adjustment device according to claim 5, characterized in that: The objective lens conversion unit (4) comprises an adapter seat (41), a connecting seat (42), a converter (43) and a plurality of objective lenses (44); a first through hole for receiving the adapter seat (41) is provided on the microscope body (1); a second through hole for receiving the connecting seat (42) is provided on the adapter seat (41); a third through hole is provided on the connecting seat (42); the converter (43) is connected to the lower end of the connecting seat (42); each objective lens (44) is connected to the converter (43); and the first through hole, the second through hole and the third through hole are all coaxially arranged with the objective lens (44) currently in use.

7. The high-precision stage adjustment device according to any one of claims 1 to 6, characterized in that: The microscope further comprises a circuit control module (6), wherein the circuit control module (6) comprises a rotary coding switch (61), a display panel (62), an upper light source (63), a lower light source (73), a battery and a power interface board, wherein the rotary coding switch (61), the upper light source (63), the lower light source (73), the battery and the power interface board are all electrically connected to the display panel (62).

8. The high-precision stage adjustment device according to claim 7, wherein: The microscope further comprises a lower light source centering unit (7), the lower light source centering unit (7) comprising a mounting seat (71) and a second adjustment seat (72), the second adjustment seat (72) being provided with a coaxially arranged annular conical groove (721), the mounting seat (71) being provided with a plurality of annularly distributed second mounting holes, the lower light source (73) being mounted on the second adjustment seat (72), the second adjustment seat (72) being sleeved in the mounting seat (71) and being centered by means of a screw passing through the second mounting hole, the screw being in contact with the inclined line of the annular conical groove (721).

9. The high-precision stage adjustment device according to claim 8, wherein: The microscope further comprises a light collecting unit (3) and a light collecting lens (5), wherein the light collecting lens (5) is mounted on the microscope body (1), and the light collecting unit (3) is mounted on the stage (21) and is located below the stage (21), and light emitted by the lower light source (73) passes through the light collecting lens (5) and the light collecting unit (3) in sequence to reach the sample to be tested.

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