Microscope frame and rotatable microscope

Abstract

The utility model provides a microscope rack and a rotatable microscope, the microscope rack comprises a rack base and a hollow shaft rotatably arranged in the rack base, and the hollow shaft is matched with the rack base through a centering bushing; the matching surface of the centering bushing is a conical surface and is matched with the conical surfaces at the front end and the rear end of the hollow shaft; the hollow shaft is provided with a mechanical band-type brake used for controlling rotation and braking of the hollow shaft, and the hollow shaft is sleeved with the mechanical band-type brake. The microscope rack further comprises a deflection swing arm used for being connected with a microscope, and the deflection swing arm is arranged on the hollow shaft in a sleeved mode and fixed relative to the hollow shaft. According to the utility model, on the premise of ensuring the operation convenience and the observation precision, the technical objectives of simplified structure, controllable cost and long-term stability are realized.

Description

Technical Field

[0001] This utility model relates to the field of microscopes and their components, specifically to a microscope frame and a rotatable microscope. Background Technology

[0002] In modern scientific research and industrial production, the microscope, as an indispensable precision observation instrument, continues to expand its application scope. In materials science, researchers use microscopes to observe the internal crystal structure, defect distribution, and interface conditions of materials; the microscopic information from the sides of samples is crucial for analyzing material properties and optimizing manufacturing processes. In biomedical research, observing the side morphology and tissue structure of cells allows for in-depth exploration of cellular physiological functions and pathological mechanisms, providing key evidence for disease diagnosis and treatment. In industrial testing processes such as semiconductor manufacturing, controlling the details of the chip's internal circuit structure and solder joint quality directly affects product quality and performance.

[0003] To address the urgent need for lateral observation of samples, existing technologies primarily focus on the tilting design of the microscope lens assembly. For example, Chinese utility model patent CN221079048U discloses a rotatable microscope that uses a rotary wrench and a microswitch to control the on / off state of a permanent magnet brake, thereby achieving the rotation and fixation of the microscope body to facilitate lateral observation of samples. However, the above-mentioned technical solutions have the following drawbacks:

[0004] First, from a cost perspective, the manufacturing process of core components such as permanent magnet brakes is complex and the procurement cost is high, which significantly increases the overall cost of the equipment.

[0005] Secondly, the above solution would result in a heavy product, which would not only make it more difficult to move and install the equipment, but would also be unsuitable for some scenarios where portability of the equipment is required.

[0006] Third, its structure occupies a large space, which will limit its layout and use in places with limited laboratory space or high requirements for equipment integration.

[0007] Meanwhile, the complex structure leads to a cumbersome installation process and low installation efficiency. Moreover, the accuracy of observation is difficult to control stably due to various factors such as assembly precision and part tolerances, which seriously restricts the promotion and application of this technology in a wider range of scenarios. Utility Model Content

[0008] The purpose of this invention is to provide a microscope frame and a rotatable microscope, which achieves the technical goals of simplified structure, controllable cost, and long-term stability while ensuring convenient operation and observation accuracy.

[0009] To achieve the above-mentioned utility model objectives, this utility model provides a microscope frame, including a frame base and a hollow shaft rotatably disposed within the frame base, wherein the hollow shaft cooperates with the frame base through a centering bushing;

[0010] The mating surface of the centering bushing is a conical surface, which mates with the conical surfaces of the front and rear ends of the hollow shaft.

[0011] The hollow shaft is equipped with a mechanical brake for controlling the rotation and braking of the hollow shaft, and the mechanical brake is sleeved on the hollow shaft;

[0012] The microscope frame also includes a deflection arm for connecting the microscope, the deflection arm being sleeved on the hollow shaft and fixed relative to the hollow shaft.

[0013] According to one technical solution of this utility model, the microscope frame further includes a buffer collar and a reset spring for providing a reset force when the deflection arm deflects;

[0014] The buffer collar is sleeved on the hollow shaft and fixed relative to the hollow shaft;

[0015] The return spring is connected between the buffer collar and the frame base.

[0016] According to one technical solution of this utility model, the centering bushing is a graphite copper bushing.

[0017] According to one technical solution of this utility model, the mechanical brake includes an annular open lock and a locking shaft. The lower section of one vertical part of the annular open lock is provided with a through hole, and the corresponding position of the other vertical part is provided with a threaded hole.

[0018] One end of the locking shaft is provided with a threaded structure, and the end face of the other end is fixed with a locking wrench. The locking shaft passes through the through hole and mates with the threaded hole.

[0019] According to one technical solution of this utility model, the locking shaft is provided with a stepped surface, and the stepped surface cooperates with the side of the annular open lock having the through hole.

[0020] According to one technical solution of this utility model, it also includes an encoder rotary base, an angle recognition encoder, and an encoder fixing base;

[0021] The encoder rotary mount is mounted on the end face of the hollow shaft, the encoder fixed mount is mounted on the frame base, and the rotor and stator of the angle recognition encoder are respectively mounted on the encoder rotary mount and the encoder fixed mount.

[0022] According to one technical solution of this utility model, a positioning guide post for connecting the microscope fixing structure is fixed on the deflection arm;

[0023] The microscope fixing structure includes a fixing base, a Z-axis lifting motor for raising and lowering the microscope body in the Z-axis direction, and a rotary wrench for tilting the microscope body.

[0024] According to one technical solution of this utility model, it also includes a pressure plate and an adjusting shim;

[0025] The centering bushing that mates with the front end of the hollow shaft is fixed to the frame base;

[0026] The centering bushing, which mates with the rear end of the hollow shaft, is fitted onto the hollow shaft and pressed firmly by the pressure plate. The pressure plate is fixed on the frame base, and an adjusting shim is provided between the pressure plate and the frame base to adjust the tightness of the fit between the centering bushing and the hollow shaft.

[0027] According to one technical solution of this utility model, a zero-position locking device is provided above the frame base, and a conical groove that cooperates with the zero-position locking device is provided at the upper end of the deflection arm.

[0028] According to one aspect of the present invention, a rotatable microscope is provided, comprising a microscope body, an electric stage, and a microscope frame as described in any one of the above technical solutions, wherein the electric stage is disposed above the frame base and is vertically aligned with the microscope body.

[0029] According to one technical solution of this utility model, the microscope body and the microscope fixing structure are fixed by a dovetail mechanism, and the microscope fixing structure is fixed to the deflection arm.

[0030] The microscope fixing structure is provided with a positioning through hole, which is engaged with the groove of the positioning guide post fixed on the deflection arm, and is positioned and fixed by two locking handwheels.

[0031] Based on one concept of this utility model, a microscope frame and a rotatable microscope are proposed. The frame employs a self-centering structure with a double-conical centering bushing, combined with a hollow shaft and a mechanical brake, achieving backlash-free rotation and highly stable braking, thus solving the accuracy deviation problem caused by backlash in traditional microscopes. The dynamic balancing of the tangential component of the deflection arm by a return spring effectively prevents the microscope's center of gravity from shifting and tipping over, ensuring operational safety. The zero-position locking device, in conjunction with the angle recognition encoder, achieves precise zero-position locking and real-time angle feedback, significantly improving observation accuracy.

[0032] Replacing permanent magnet brakes with mechanical brakes reduces the number of parts by 3%, the weight of the whole machine by 20%, and the cost by 15%. Furthermore, the self-lubricating properties of the centering bushings significantly reduce maintenance requirements.

[0033] This invention achieves the technical goals of simplified structure, optimized cost, and long-term stable operation, meeting the industrial and scientific research needs of high-precision microscopic observation. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 The schematic diagram illustrates the structure of a rotatable microscope according to one embodiment of the present invention.

[0036] Figure 2 The schematic diagram shows a cross-sectional view of a microscope frame according to one embodiment of the present invention.

[0037] Figure 3 This diagram illustrates the connection between a mechanical brake and a hollow shaft according to one embodiment of the present invention.

[0038] Figure 4 A schematic view of a hollow shaft according to one embodiment of the present invention;

[0039] Figure 5 This is a schematic perspective view of a microscope frame according to one embodiment of the present invention.

[0040] Figure label:

[0041] 1. Microscope body; 2. Motorized stage; 3. Microscope mounting structure; 4. Microscope frame;

[0042] 5. Deflection arm; 6. Encoder rotary seat; 7. Angle recognition encoder; 8. Encoder mounting base; 9. Mechanical brake; 10. Frame base; 11. Positioning guide column; 12. Zero-position locking device; 13. Pressure plate; 14. Adjusting shim; 15. Hollow shaft; 16. Centering bushing; 17. Buffer collar; 18. Return spring; 19. Locking shaft; 20. Locking wrench; 21. Stepped surface; 22. Annular open lock; 151. Knurling. Detailed Implementation

[0043] The description of the embodiments in this specification should be taken in conjunction with the accompanying drawings, which should form part of the complete specification. In the drawings, the shape or thickness of the embodiments may be exaggerated and may be indicated in a simplified or convenient manner. Furthermore, parts of the various structures in the drawings will be described separately; it is worth noting that elements not shown in the figures or not described in words are in a form known to those skilled in the art.

[0044] The description of the embodiments herein, including any references to direction and orientation, is for ease of description only and should not be construed as limiting the scope of protection of this utility model. The following description of preferred embodiments involves combinations of features, which may exist independently or in combination; this utility model is not particularly limited to the preferred embodiments. The scope of this utility model is defined by the claims.

[0045] In describing embodiments of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" express orientations or positional relationships based on the orientations or positional relationships shown in the relevant drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0046] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. The embodiments cannot be described in detail here, but the embodiments of the present invention are not limited to the following embodiments.

[0047] like Figures 1 to 5 As shown, according to one embodiment of the present invention, the present invention provides a microscope frame 4 for enabling the microscope to rotate, thereby facilitating multi-angle observation of precision samples.

[0048] The microscope frame 4 includes a deflection arm 5, an encoder rotating seat 6, an angle recognition encoder 7, an encoder fixing seat 8, a mechanical brake 9, a frame base 10, a positioning guide post 11, a zero-position locking device 12, a pressure plate 13, an adjusting shim 14, a hollow shaft 15, a centering bushing 16, a buffer collar 17, a return spring 18, a locking shaft 19, and a locking wrench 20.

[0049] The frame base 10, as the main body of the microscope frame 4, supports the entire microscope apparatus. The hollow shaft 15 is rotatably fitted to the frame base 10 via a centering bushing 16. It is understood that the frame base 10 has through holes, such as... Figure 2As shown, the hollow shaft 15 runs through the entire frame base 10; the mating surface of the centering bushing 16 with the hollow shaft 15 is a conical surface, and the conical surfaces of the centering bushing 16 and the front and rear ends of the hollow shaft 15 are mutually engaged; the hollow shaft 15 is equipped with a mechanical brake 9 for controlling the rotation and braking of the hollow shaft 15, and the mechanical brake 9 is sleeved on the hollow shaft 15; wherein, the front end of the hollow shaft 15 refers to the end closer to the microscope body.

[0050] The microscope frame 4 also includes a deflection arm 5 for connecting the microscope. The deflection arm 5 is sleeved on the hollow shaft 15 and fixed relative to the hollow shaft 15.

[0051] The centering bushing 16 is composed of a copper alloy matrix and a graphite solid lubricant, that is, the centering bushing is a graphite copper bushing. Part of the graphite particles in the graphite copper bushing are transferred to the friction surface between the graphite copper bushing and the spindle 15, forming a relatively stable solid lubricating diaphragm, preventing direct adhesive wear between the spindle 15 and the graphite copper bushing. It combines the respective performance advantages of metal alloys and non-metallic anti-friction materials, including both the high load-bearing capacity of metals and the lubrication performance of anti-friction materials.

[0052] The mating surface of the centering bushing 16 is machined into a conical surface with a taper of 1:3; the hollow shaft 15 is made of SUS304 material, with the front and rear sections being conical surfaces with a taper of 1:3, and the ratio of the inner diameter to the outer diameter being 2:3. It has been tested to withstand bending moments exceeding 50 N·m.

[0053] Two centering bushings 16 are provided, located at the front and rear ends of the hollow shaft 15 respectively. Their mating surfaces are conical surfaces, which mate with the conical surfaces at the front and rear ends of the hollow shaft 15. Utilizing the self-centering property of the conical surface, the hollow shaft 15 is guaranteed to have no axial or radial clearance, improving the stability and accuracy of its installation. During sliding friction, graphite particles transfer to form a solid lubricating diaphragm, combining the high load-bearing capacity of metal with the lubrication performance of non-metallic anti-friction materials. This reduces direct adhesive wear between the rotating shaft and the centering bushings 16, extending the service life of the components.

[0054] Furthermore, the copper alloy matrix of the centering bushing 16 can be made of high-strength brass or bronze, with the graphite content controlled between 5% and 10% to optimize lubrication performance and mechanical strength. Simultaneously, the conical surface machining accuracy must reach Ra0.8 to ensure a tight fit with the hollow shaft 15.

[0055] The hollow shaft 15 has a knurled section near the front end, designed to increase contact friction. The knurling design can be straight or cross-knurled, with the knurling depth controlled at 0.2-0.3mm to enhance friction with the mechanical brake 9.

[0056] In some embodiments of this utility model, the microscope frame 4 further includes a buffer collar 17 and a reset spring 18 for providing a reset force when the deflection arm 5 deflects;

[0057] The buffer collar 17 is sleeved on the hollow shaft 15 and fixed relative to it; the buffer collar 17 and the hollow shaft 15 can be fixed with bolts.

[0058] The return spring 18 is connected between the buffer collar 17 and the frame base 10.

[0059] The buffer collar 17 is sleeved on the hollow shaft 15 and fixed relative to it. The return spring 18 is connected between the buffer collar 17 and the frame base 10. When the deflection arm 5 deflects, the return spring 18 is stretched to generate tension, pulling part of the deflection arm 5 in the opposite direction of the deflection, thus counteracting the tangential component force generated by the deflection of the microscope body 1. This effectively avoids instability or even tipping caused by the heavy weight of the microscope body 1, enhancing the stability and safety of the microscope during use.

[0060] The spring constant of the reset spring 18 can be optimized according to the weight of the microscope body 1. For example, a spring of 5 N / mm can be selected, and a tension of 10 N can be provided in the initial tension state to balance the tangential component force during deflection.

[0061] like Figure 3 As shown, in some embodiments of this utility model, the mechanical brake 9 includes an annular open lock and a locking shaft 19. The lower section of one vertical part of the annular open lock is provided with a through hole, and the corresponding position of the other vertical part is provided with a threaded hole.

[0062] One end of the locking shaft 19 is provided with a threaded structure, and the other end is fixed with a locking wrench 20. The locking shaft 19 passes through the through hole and mates with the threaded hole.

[0063] By rotating the locking wrench 20, the forward and backward movement of the locking shaft 19 can be easily controlled, thereby precisely controlling the size of the brake opening and adjusting the clamping degree of the hollow shaft 15. Ultimately, this achieves precise control over the deflection and braking of the deflection arm 5 and the microscope body 1. The operation is simple and the control accuracy is high.

[0064] In some embodiments of this utility model, the locking shaft 19 is provided with a stepped surface, which cooperates with the side of the annular open lock with a through hole.

[0065] The stepped surface acts as a limit. When the locking shaft 19 is tightened or loosened, the stepped surface presses against the side of the through hole section to prevent the locking shaft 19 from being excessively screwed in or out, ensuring the stability of the clamping force of the mechanical brake 9 on the hollow shaft 15, and ensuring the reliability of the microscope body 1 when rotating and fixed.

[0066] The mechanical brake 9, deflection arm 5, and buffer collar 17 are sequentially mounted on the hollow shaft 15 from front to back. The annular open lock of the mechanical brake 9 engages with the knurled section of the hollow shaft 15 to increase friction. The mechanical brake 9 is mounted on the frame base 10.

[0067] In some embodiments of this utility model, the microscope frame 4 also includes an encoder rotator 6, an angle recognition encoder 7, and an encoder mounting base 8;

[0068] The encoder rotary seat 6 is mounted on the end face of the hollow shaft 15, and the encoder fixed seat 8 is mounted on the frame base 10. The rotor and stator of the angle recognition encoder 7 are respectively mounted on the encoder rotary seat 6 and the encoder fixed seat 8.

[0069] When the hollow shaft 15 rotates, it drives the encoder rotor to rotate, transmitting signals to the main control board to realize the angle recognition function. This allows the operator to accurately know the rotation angle of the microscope body 1, providing accurate angle data for observation operations and improving the accuracy and scientific nature of observation.

[0070] In some embodiments of this utility model, a positioning guide post 11 for connecting the microscope fixing structure 3 is fixed on the deflection arm 5, and the positioning guide post 11 is connected and fixed to the deflection arm 5 by bolts.

[0071] The microscope fixing structure 3 includes a fixing base, a Z-axis lifting motor for lifting the microscope body 1 in the Z-axis direction, and a rotary wrench for tilting the microscope body 1.

[0072] In some embodiments of this utility model, the microscope frame 4 also includes a pressure plate 13 and an adjusting shim 14;

[0073] A centering bushing 16 that mates with the front end of the hollow shaft 15 is fixed to the frame base 10;

[0074] A centering bushing 16 that mates with the rear end of the hollow shaft 15 is fitted onto the hollow shaft 15 and pressed firmly by a pressure plate 13. The pressure plate 13 is fixed on the frame base 10. An adjusting shim 14 is provided between the pressure plate 13 and the frame base 10 to adjust the tightness of the fit between the centering bushing 16 and the hollow shaft 15.

[0075] There is a gap between the pressure plate 13 and the frame base 10. The tightness of the fit between the centering bushing 16 and the hollow shaft 15 is adjusted by adding the adjusting shim 14. After adjusting it to the point that the microscope body 1 can be tilted with one hand, it is tightened to achieve the best feel and accuracy in tilting the microscope body 1, while ensuring that the hollow shaft 15 can operate stably under different working conditions.

[0076] In some embodiments of this utility model, a zero-position locking device 12 is provided above the frame base 10, and a conical groove that cooperates with the zero-position locking device 12 is provided at the upper end of the deflection arm 5.

[0077] The microscope frame 4 further includes a zero-position locking device 12 disposed on the frame base 10. The upper end of the deflection arm 5 is provided with a conical groove that cooperates with the zero-position locking device 12. The zero-position locking device 12 cooperates with the conical groove to position the deflection arm 5 at its zero position, thereby determining the zero position of the microscope body 1. When the microscope is not in use, the ball head of the zero-position locking device 12 can be pushed into the conical groove using the handle to lock the deflection arm 5 in the zero position, preventing accidental deflection due to collisions when storing the microscope. When the microscope needs to be used, the ball head of the zero-position locking device 12 can be removed from the conical groove using the handle to unlock the deflection arm 5.

[0078] Before or during the use of the microscope, the deflection arm 5 can be locked at the zero position by the zero-position locking device 12, ensuring the consistency and accuracy of the starting position for each observation, and improving the reliability and repeatability of experimental data.

[0079] According to one aspect of the present invention, a rotatable microscope is provided, comprising a microscope body 1, an electric stage 2, and a microscope frame 4 as described in any of the above technical solutions, wherein the electric stage 2 is disposed above the frame base 10 and is vertically aligned with the microscope body 1.

[0080] The microscope body 1 includes an illumination system, an imaging system, and an objective lens, used for observing samples;

[0081] The X, Y, and Z axes of the electric stage 2 are all driven by motors. The electric drive of the Z axis is achieved by a motor installed in the microscope frame 4, which is used to move the sample in three-dimensional space.

[0082] In some embodiments of this utility model, the microscope body 1 and the microscope fixing structure 3 are fixed by a dovetail mechanism, with the microscope fixing structure 3 fixed to the deflection arm 5. The dovetail mechanism includes a dovetail-shaped groove formed in the microscope body 1 and a dovetail-shaped block disposed in the fixing seat. The dovetail-shaped block is engaged in the dovetail-shaped groove to connect the microscope body 1 to the fixing seat. The dovetail-shaped groove can also be formed in the fixing seat, and correspondingly, the dovetail-shaped block is disposed in the microscope body 1.

[0083] The microscope fixing structure 3 is provided with a positioning through hole, which is matched with the groove of the positioning guide post 11 fixed on the deflection arm 5, and is positioned and fixed by two locking handwheels.

[0084] The locking handwheel is equipped with a top clamping rod that passes through the positioning through hole. By rotating the locking handwheel, the top clamping rod is pressed against the groove of the positioning guide post 11, thus completing the locking.

[0085] Operating instructions:

[0086] During operation, use your left hand to adjust the locking wrench 20 to release the microscope body 1 to a tiltable state, and use your right hand to hold the rotating wrench to adjust the microscope body 1 to the required observation angle. Then adjust the locking wrench 20 to the tightest state to complete one tilt observation operation.

[0087] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A microscope stand, characterized in that The microscope stand (4) comprises a rack base (10) and a hollow shaft (15) rotatably arranged in the rack base (10), the hollow shaft (15) is matched with the rack base (10) through a centering bushing (16); The matching surface of the centering bushing (16) is a conical surface, which is matched with the conical surface of the front end and the rear end of the hollow shaft (15); The hollow shaft (15) is provided with a mechanical brake (9) for controlling the rotation and braking of the hollow shaft (15), the mechanical brake (9) is sleeved on the hollow shaft (15); The microscope stand (4) further comprises a deflection swing arm (5) for connecting a microscope, the deflection swing arm (5) is sleeved on the hollow shaft (15) and fixed relative to the hollow shaft (15).

2. The microscope stand of claim 1, wherein, Further comprising a buffer ring (17) and a return spring (18) for providing a return force when the deflection swing arm (5) is deflected; The buffer ring (17) is sleeved on the hollow shaft (15) and fixed relative to the hollow shaft (15); The return spring (18) is connected between the buffer ring (17) and the rack base (10).

3. The microscope stand of claim 1, wherein, The centering bushing (16) is a graphite copper sleeve.

4. The microscope stand of claim 1, wherein, The mechanical brake (9) comprises a ring-shaped open lock and a locking shaft (19), the lower section of one of the vertical parts of the ring-shaped open lock is provided with a through hole, and the corresponding position of the other vertical part is provided with a threaded hole; One end of the locking shaft (19) is provided with a threaded structure, and the end face of the other end is fixed with a locking wrench (20), the locking shaft (19) passes through the through hole and is matched with the threaded hole.

5. The microscope stand of claim 4, wherein, A step surface is arranged on the locking shaft (19), and the step surface is matched with the side surface of the ring-shaped open lock having the through hole.

6. The microscope stand of claim 1, wherein, Further comprising an encoder rotating seat (6), an angle recognition encoder (7) and an encoder fixed seat (8); The encoder rotating seat (6) is installed on the end face of the hollow shaft (15), the encoder fixed seat (8) is installed on the rack base (10), and the rotor and stator of the angle recognition encoder (7) are respectively installed on the encoder rotating seat (6) and the encoder fixed seat (8).

7. The microscope stand of claim 1, wherein, The deflection swing arm (5) is fixed with a positioning guide column (11) for connecting a microscope fixing structure (3); The microscope fixing structure (3) comprises a fixed seat, a Z-axis lifting motor for realizing the lifting of the microscope main body (1) in the Z-axis direction, and a rotating wrench for deflecting the microscope main body (1).

8. The microscope stand of claim 1, wherein, Further comprising a pressing plate (13) and an adjusting gasket (14); The centering bushing (16) matched with the front end of the hollow shaft (15) is fixed on the rack base (10); The centering bushing (16) matched with the rear end of the hollow shaft (15) is sleeved on the hollow shaft (15) and is pressed firmly through the pressing plate (13), the pressing plate (13) is fixed on the rack base (10), and the adjusting gasket (14) for adjusting the tightness of the matching between the centering bushing (16) and the hollow shaft (15) is arranged between the pressing plate (13) and the rack base (10).

9. The microscope stand of claim 1, wherein, The zero position locking device (12) is arranged above the rack base (10), and the taper slot matched with the zero position locking device (12) is arranged at the upper end of the deflection swing arm (5).

10. A rotatable microscope, characterized by The microscope comprises a microscope body (1), a motorized stage (2) and a microscope rack as claimed in any one of claims 1 to 9, wherein the motorized stage (2) is arranged above the rack base (10) and is vertically aligned with the microscope body (1).

11. The rotatable microscope of claim 10, wherein, The microscope body (1) and the microscope fixing structure (3) are fixed by a dovetail mechanism, and the microscope fixing structure (3) is fixed on the deflection swing arm (5). The microscope fixing structure (3) is provided with a positioning through hole, the positioning through hole is matched with the groove of the positioning guide column (11) fixed on the deflection swing arm (5), and the positioning and fixing are performed by two locking hand wheels.

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