Microscope lens rotating module assembly process

Abstract

The application discloses a microscope lens rotating module assembly process, which comprises the following steps: S1, preparing a base and a rotating disc; S2, pressing a steel ball; S3, measuring the steel ball; S4, pressing a bearing; S5, assembling a copper ring; S6, assembling a magnet; S7, assembling an elastic sheet; S8, assembling a PCB board; S9, assembling the rotating disc and the base; S10, machining the copper ring; S11, measuring the flatness of the copper ring, the center degree of the copper ring and the rotating torsion of the rotating disc; and S12, installing a bright field ring. The application realizes the precise assembly of the microscope lens rotating module, and improves the assembly quality and the quality reliability.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of microscope assembly, in particular to a microscope lens rotating module assembly process.

BACKGROUND TECHNIQUE

[0002] The microscope is an optical instrument composed of a lens or a combination of several lenses, mainly used for magnifying micro objects to be observed by human eyes. The mechanical part of the microscope includes a base, a column, an arm, a barrel, an objective converter, a stage and an adjuster. The objective converter is connected to the lower part of the prism shell and can be freely rotated. There are several round holes on the disc, which is the installation part of the objective. By rotating the converter, different magnification objectives can be exchanged. When a knocking sound is heard, observation can be performed. At this time, the optical axis of the objective is aligned with the center of the light hole, and the optical path is connected. After the objective is changed, the coarse adjuster cannot be used, and only the fine adjuster can be used to make the image clear.

[0003] For the objective converter, it includes a rotating mechanism and a plurality of objectives arranged on the rotating mechanism. The rotating mechanism includes a base and a rotating disc rotatably arranged on the base. The assembly precision of the rotating disc and the base is very high. The objectives are assembled on the rotating disc. The central axis of the corresponding objective needs to be collinear with the central axis of the optical system of the barrel part at every rotating angle. Therefore, the installation precision of the rotating disc is very high, and the assembly precision of the copper ring for installing the objectives on the rotating disc is also very high.

[0004] In the prior art, there is no related technical disclosure for the assembly method of the rotating mechanism in the objective converter, so that the assembly of the rotating mechanism cannot meet the high precision requirement. Therefore, it is necessary to provide a new microscope lens rotating module assembly process to solve the above technical problems.

SUMMARY OF THE INVENTION

[0005] The main purpose of the present application is to provide a microscope lens rotating module assembly process, which realizes the precise assembly of the microscope lens rotating module and improves the assembly quality and reliability.

[0006] The present application achieves the above-mentioned purpose through the following technical scheme: a microscope lens rotating module assembly process, comprising:

[0007] S1, preparing a base and a rotating disc:

[0008] The base comprises a support part and a vertical plate part, the vertical plate part is provided with a rotating disc mounting area for mounting the rotating disc, the center of the rotating disc mounting area is provided with a support shaft, a second hollow groove and a first hollow groove, a first mounting groove for mounting the PCB, a second mounting groove for mounting the induction spring, and a first rotating support plane for supporting the circumferential edge of the rotating disc; the back of the vertical plate part is provided with a slot connected to the first hollow groove, and the side of the vertical plate part is provided with a socket connected to the slot;

[0009] The rotating disc comprises a central shaft hole located at the center position and assembled with the support shaft, and a plurality of lens mounting groove holes arranged at equal angles around the central shaft hole; the inner surface of the rotating disc is provided with a plurality of steel ball mounting holes and magnet mounting holes, and the circumferential edge of the inner surface of the rotating disc is provided with a second rotating support plane;

[0010] S2, press the steel ball: provide a profiling jig, the upper surface of the profiling jig is formed with a profiling bearing groove profiled with the rotating disc; place the rotating disc with the back upward in the profiling bearing groove; place the profiling jig on the press base, assemble a first pressing head for pressing the steel ball on the press, put a steel ball at the bottom of the first pressing head, adjust the position of the profiling jig so that the steel ball on the first pressing head is aligned with the steel ball mounting hole, press the first pressing head downward, press the steel ball into the steel ball mounting hole and press it into place, repeat the above pressing action until all the steel balls are pressed;

[0011] S3, measure the steel ball: provide a steel ball detection jig to detect whether the assembly height of each steel ball on the rotating disc meets the design requirements;

[0012] S4, press the bearing: place the rotating disc with the outer surface upward on a support jig, then put it into the press, assemble a second pressing head for pressing the bearing on the press, put the bearing on the second pressing head, adjust the position of the support jig so that the second pressing head is aligned with the central shaft hole in the rotating disc, press the second pressing head downward to press the bearing into the central shaft hole smoothly;

[0013] S5, install the copper ring: provide a copper ring, clean the lens mounting groove hole and the copper ring with acetone, stick glue in the lens mounting groove hole, and then install the copper ring in each lens mounting groove hole;

[0014] S6, assemble the magnet: glue in the magnet mounting hole, use the magnet rod to adsorb the magnet and place it in the magnet mounting hole, and cover the magnet with adhesive tape to keep the pressure;

[0015] S7, assemble the spring: take an induction spring, paste rubber skin on the lower surface of the induction spring; then lock it in the second mounting groove with a screw;

[0016] S8, install the PCB: assemble the PCB into the first mounting groove and fix it with a screw;

[0017] S9, assemble the rotating disc and the base:

[0018] S91, clean the first rotating support plane on the base and the second rotating support plane on the rotating disc, and then use the magnet bar to detect whether the magnet polarity assembled in step S6 is installed correctly;

[0019] S92, evenly apply lubricating grease on the second rotating support plane, and then press the first annular gasket flat;

[0020] S93, evenly apply lubricating grease on the first annular gasket, and then place the ball bearing ring on the first annular gasket;

[0021] S94, evenly apply lubricating grease on the first rotating support plane, and then press the second annular gasket flat;

[0022] S95, evenly apply lubricating grease on the second annular gasket, then assemble the rotating disc on the base, pass the support shaft through the center shaft hole, and assemble an end cover on the shaft end surface of the support shaft, and use screws to screw into the threaded holes on the shaft end of the support shaft to achieve locking and fixing, to obtain a microscope lens rotating module;

[0023] S96, rotate the rotating disc and detect whether the hand feeling is smooth;

[0024] S10, machine the copper ring: place a plastic protective pad in the lens mounting slot hole, clamp the lens rotating module to the clamp of the numerical control machine tool, and then machine the inner hole wall of the copper ring and the outer surface of the copper ring according to the design requirements;

[0025] S11, measure the flatness of the copper ring, the center of the copper ring, and the rotating torque of the rotating disc;

[0026] S12, install the bright field ring: install the bright field ring on the back of the base corresponding to the position of the first hollow groove, and lock and fix it with screws, to complete the assembly of the microscope lens rotating module.

[0027] Further, in step S7, when locking the sensing spring, first, use screws to pre-lock the sensing spring, then use a rotating disc jig shaped like the rotating disc to press on the base, simulate the assembly structure of the rotating disc and the base, and press the base, then use a screwdriver to lock the sensing spring in place, loosen the pressure on the base, then rotate the rotating disc jig to detect whether the rotating disc jig rotates smoothly, if not, adjust the screw tightening height to ensure that the sensing spring does not interfere with the rotation of the rotating disc.

[0028] Further, in step S12, when locking the bright field ring, insert a plug into the slot, then lock the bright field ring in place so that the plug cannot fall off; finally, cover each copper ring with a protective cover to block the lens mounting slot hole.

[0029] Further, the rotating disc jig is provided with an avoiding operation gap for locking the inductive elastic sheet.

[0030] Further, the steel ball mounting holes are arranged at equal angles around the central shaft hole.

[0031] Further, the number of the steel ball mounting holes corresponds to the number of the lens mounting slot holes.

[0032] Further, the steel ball detection jig comprises a circular ring shell which is located on the plane formed by the steel balls during detection, a detection probe arranged in the circular ring shell and a display table for detecting the upward moving distance of the detection probe; an opening downward gap is arranged on the circumferential surface of the circular ring shell, a non-closed annular bottom surface is formed at the bottom end of the circular ring shell, the inner diameter of the annular bottom surface is smaller than the distribution diameter of all the steel balls on the rotating disc, and the detection probe is arranged in the gap.

[0033] Further, the size of the gap is designed according to the principle that the annular bottom surface cannot cover all the steel balls at the same time, but can cover all the steel balls except one to be detected.

[0034] Further, the S3 measurement steel ball comprises: placing the steel ball detection jig upside down on the rotating disc, locating the bottom of the circular ring shell on the plane formed by the steel balls, at this time, only one steel ball is located in the gap, then aiming the detection probe at the steel ball in the gap, which is the steel ball to be detected at this time, locating the detection probe on the top of the steel ball, observing the reading of the display table, if the reading is within the allowable range, the steel ball installation meets the requirements, otherwise it does not meet the requirements, then rotating the circular ring shell so that the detection probe is located on the next steel ball, and the detection is carried out in the same way until all the steel balls are detected.

[0035] Compared with the prior art, the microscope lens rotating module assembly process has the beneficial effects that: by designing the assembly process of the microscope lens rotating module, precise assembly of the microscope lens rotating module is realized, and assembly quality and quality reliability are improved.

[0036] (1) The steel balls are first pressed and mounted on the back surface of the rotating disc, and the pressing height of the steel balls is detected, so as to detect whether the steel balls are missing or not, and on the other hand, the pressing height of the steel balls is guaranteed, so that the rotating disc can be rotated by one angle, the corresponding rotating angle can be stopped by the steel balls, and uniform stop rotation resistance is provided;

[0037] (2) After the bearing is press-fitted, the copper ring is assembled, and then the magnet is assembled. Since glue is needed in the process of assembling the magnet, assembling the copper ring first and then assembling the magnet can prevent the glue from dropping into the lens mounting groove hole in the process of assembling the magnet, affecting the assembly precision of the copper ring, and further affecting the assembly precision of the subsequent objective lens;

[0038] (3) When assembling the inductive elastic sheet, the inductive elastic sheet is first pre-locked in the corresponding mounting groove of the base, then the turntable jig is used to simulate the assembly of the turntable on the base, and the base is pressed by the lens mounting groove hole on the turntable jig, so that the position of the base is stable when the inductive elastic sheet is locked. Then, the turntable jig simulates the rotation of the turntable in the use process, detects whether the rotation is smooth, and if not, the locking height of the inductive elastic sheet is adjusted again to ensure that the inductive elastic sheet does not interfere with the rotation of the turntable and ensure the smoothness of the rotation of the turntable.

[0039] (4) When the copper ring is machined, plastic protective pads are inserted into the lens mounting groove hole to prevent debris from entering the space between the turntable and the base during machining, ensuring that the turntable can rotate accurately and smoothly. BRIEF DESCRIPTION OF DRAWINGS

[0040] Figure 1 is a schematic diagram of the assembled three-dimensional structure of the embodiment of the present application;

[0041] Figure 2 is one of the schematic diagrams of the partial exploded structure of the embodiment of the present application;

[0042] Figure 3 is the second schematic diagram of the partial exploded structure of the embodiment of the present application;

[0043] Figure 4 is a schematic diagram of the structure of the base in the embodiment of the present application;

[0044] Figure 5 is a schematic diagram of the structure of the profiling jig and the press in the embodiment of the present application;

[0045] Figure 6 is a schematic diagram of the structure of the steel ball detection jig in the embodiment of the present application;

[0046] Numerical representation in the figure:

[0047] 100 - microscope lens rotation module;

[0048] 1 - base, 11 - support part, 12 - vertical plate part, 121 - support shaft, 122 - second hollow groove, 123 - first hollow groove, 124 - first mounting groove, 125 - second mounting groove, 126 - first rotation support plane, 127 - insertion groove, 128 - insertion port;

[0049] 2-turntable, 21-center axis hole, 22-lens mounting slot, 23-steel ball mounting hole, 24-magnet mounting hole, 25-second rotation support plane;

[0050] 3-PCB board; 4-sensor spring; 5-steel ball; 6-bearing; 7-copper ring; 8-magnet; 9-first annular washer; 10-ball ring; 101-second annular washer; 102-end cover; 103-screw; 104-bright field ring;

[0051] 20- profiling fixture, 201- profiling bearing groove, 202- positioning column; 30- press; 40- steel ball detection fixture, 401- annular shell, 402- detection probe, 403- display meter, 404- notch, 405- annular bottom surface. [Specific implementation method]

[0052] Example 1:

[0053] Please refer to Figures 1-6 This embodiment is a microscope lens rotating module assembly process, which includes:

[0054] S1. Prepare base 1 and turntable 2:

[0055] The base 1 includes a support portion 11 and a vertical plate portion 12. A turntable mounting area for mounting the turntable 2 is provided on the vertical plate portion 12. A support shaft 121, a second hollow groove 122 and a first hollow groove 123, a first mounting groove 124 for mounting the PCB board 3, a second mounting groove 125 for mounting the induction spring 4, and a first rotating support plane 126 for supporting the circumferential edge of the turntable 2 are provided at the center of the turntable mounting area; a slot 127 connected to the first hollow groove 123 is provided on the back of the vertical plate portion 12, and a socket 128 connected to the slot 127 is provided on the side of the vertical plate portion 12.

[0056] The second hollow groove 122 is a processing hole, and the first hollow groove 123 is an observation hole.

[0057] The turntable 2 includes a central axis hole 21 located at the center and assembled with the support shaft 121, and a plurality of lens mounting slots 22 distributed in a ring at equal angles around the central axis hole 21; the inner surface of the turntable 2 is provided with a plurality of steel ball mounting holes 23 and magnet mounting holes 24, and a second rotating support plane 25 is provided at the circumferential edge of the inner surface of the turntable 2.

[0058] The steel ball mounting holes 23 are arranged at equal angles around the central axis hole 21. The number of the steel ball mounting holes 23 corresponds to the number of the lens mounting slots 22.

[0059] S2, press steel ball 5: provide a profiling jig 20, the upper surface of the profiling jig 20 is formed with a profiling bearing groove 201 shaped with the turntable 2, the profiling bearing groove 201 is provided with a positioning column 202 extending into the center shaft hole 21; place the turntable 2 upside down on the profiling jig 20; the profiling jig 20 limits the horizontal degree of freedom of the turntable 2; place the profiling jig 20 on the base of the press 30, assemble the first pressing head for pressing the steel ball 5 on the press 30, put a steel ball 5 at the bottom of the first pressing head, adjust the position of the profiling jig 20 so that the steel ball 5 on the first pressing head is aligned with the steel ball mounting hole 23, press the first pressing head down, press the steel ball 5 into the steel ball mounting hole 23 and press it into place, repeat the above pressing action until all the steel balls 5 are pressed.

[0060] S3, measure the steel ball 5: provide a steel ball detection jig 40, the steel ball detection jig 40 includes a circular ring shell 401, a detection probe 402 arranged inside the circular ring shell 401, and a display table 403 for detecting the upward movement distance of the detection probe 402; a downward opening notch 404 is provided on the circumference of the circular ring shell 401, and a non-closed annular bottom surface 405 is formed at the bottom end of the circular ring shell 401, the inner diameter of the annular bottom surface 405 is smaller than the distribution diameter of all the steel balls 5 on the turntable 2, so that when the steel ball detection jig 40 is placed on the turntable 2, the annular bottom surface 405 can be seated on a support plane formed by the tops of multiple steel balls; the detection probe 402 is arranged in the notch 404, and the size of the notch 404 is designed so that the annular bottom surface 405 cannot cover all the steel balls 5 at the same time, but can cover all the steel balls except one to be detected; that is, if there are 6 steel balls installed on the turntable 2 in this embodiment, the annular bottom surface 405 can and only can cover any 5 consecutive ones, and the sixth steel ball must be in the notch 404 section.

[0061] When detecting, place the steel ball detection jig 40 upside down on the turntable 2, the bottom of the circular ring shell 401 is seated on the plane formed by multiple steel balls 5, at this time, one steel ball 5 is left in the notch 404, then align the detection probe 402 with the steel ball in the notch 404, this steel ball is the steel ball to be detected at this time, the detection probe 402 is seated on the top of the steel ball, the reading of the display table 403 is observed, if the reading is within the allowable range, the steel ball installation meets the requirements, otherwise it does not meet the requirements; then rotate the circular ring shell 401 so that the detection probe 402 is seated on the next steel ball, and the detection is carried out in the same way, until all the steel balls 5 complete the above height detection.

[0062] The inspector detects the assembly height error of the steel ball 5 through the display table 403 and controls it within ±0.05 mm. By measuring the press-fitting of the steel ball 5, on the one hand, it can be detected whether the steel ball 5 is missing, and on the other hand, it can be ensured that the press-fitting height of each steel ball 5 meets the requirements, so that the rotation of the turntable 2 by one angle can be stopped by the steel ball 5 corresponding to the rotation angle, and the rotation resistance of the set size can be maintained.

[0063] S4, press-fitting bearing: place the turntable 2 upside down on a support jig (not shown in the figure), and then put it on the press 30. A second press head for press-fitting the bearing is arranged on the press 30. The bearing 6 is placed on the second press head. The position of the support jig is adjusted so that the second press head is aligned with the center shaft hole 21 in the turntable 2. The second press head is pressed down to press the bearing 6 into the center shaft hole 21.

[0064] S5, copper ring assembly: provide a copper ring 7. Clean the lens mounting slot hole 22 and the copper ring 7 with acetone, and then stick glue in the lens mounting slot hole 22. Then, assemble the copper ring 7 in each lens mounting slot hole 22.

[0065] S6, assemble the magnet 8: glue in the magnet mounting hole 24. Use a magnet rod to adsorb the magnet 8 and place it in the magnet mounting hole 24. Cover the magnet 8 with adhesive tape to ensure that the magnet 8 is firmly assembled in the magnet mounting hole 24.

[0066] S7, assemble the elastic piece: provide the elastic piece material. Take an inductive elastic piece 4 and paste rubber skin on the lower surface of the inductive elastic piece 4 for sound damping. Then, pre-lock it in the second mounting groove 125 of the base 1 with a screw. Then, use a turntable jig shaped like the turntable 2 to press on the base 1 to simulate the assembly structure of the turntable 2 and the base 1, and press the base 1 tightly. Then, use a screwdriver to lock the inductive elastic piece 4 in place, loosen the pressure on the base 1, and then rotate the turntable jig to check whether it rotates smoothly. If it does not rotate smoothly, continue to tighten the elastic piece screw downward to ensure that the elastic piece does not interfere with the rotation of the turntable 2.

[0067] The turntable jig is provided with an avoiding operation gap for facilitating the locking operation of the inductive elastic piece 4, and the avoiding operation gap connects the adjacent two lens mounting slot holes 22 on the turntable jig.

[0068] S8, assemble the PCB board: assemble the PCB board 3 into the first mounting groove 124 and fix it with a screw.

[0069] S9, assemble the turntable 2 and the base 1:

[0070] S91, clean the first rotating support plane 126 on the base 1 and the second rotating support plane 25 on the turntable 2, and then use a magnet bar to detect whether the magnet polarity assembled in step S6 is installed correctly;

[0071] S92, evenly apply lubricating grease on the second rotating support plane 25, and then press the first annular gasket 9 flat;

[0072] S93, evenly apply lubricating grease on the first annular gasket 9, and then place the ball ring 10 on the first annular gasket 9;

[0073] S94, evenly apply lubricating grease on the first rotating support plane 126, and then press the second annular gasket 101 flat;

[0074] S95, evenly apply lubricating grease on the second annular gasket 101, then assemble the turntable 2 on the base 1, pass the support shaft 121 through the center shaft hole 21, and assemble an end cover 102 on the shaft end surface of the support shaft 121, and use the screw 103 to pass through the end cover 102 and screw into the threaded hole at the shaft end of the support shaft 121 to achieve locking and fixing, limiting the axial position of the bearing 6 assembled in the center shaft hole 21, to obtain the microscope lens rotating module 100;

[0075] S96, rotate the turntable 2 to detect whether the hand feeling is smooth, and whether there is friction, jumping and other defects.

[0076] S10, machine the copper ring: place a plastic protective pad in the lens mounting groove hole 22 to prevent debris from entering the space between the turntable 2 and the base 1 during machining, affecting the rotation of the turntable 2; clamp the lens rotating module 100 to the fixture of the numerical control machine tool, and then machine the inner hole wall of the copper ring 7 and the outer surface of the copper ring according to the design requirements.

[0077] S11, measure the flatness of the copper ring, the center of the copper ring, and the rotation torque of the turntable 2: use a detection tool to detect the height value of the machined copper ring 7 in the lens rotating module 100, control the height error of the copper ring 7 within 0.003, use a microscope to detect the center of the inner hole of the copper ring 7, control the center tolerance within ±1 grid; use a tool to measure the rotation torque of the turntable 2 when rotating, and use a torque screwdriver to tighten the screw 103 at the shaft end of the support shaft 121 in step S95 to ensure that the torque is within the set range.

[0078] S12, install the bright field ring: install the bright field ring 104 at the back of the base 1 corresponding to the first hollow groove 123 position, and lock and fix with screws. When locking the bright field ring 104, insert a plug in the insertion groove 127. The plug is inserted from the insertion port 128, and then the bright field ring 104 is locked in place so that the plug cannot fall off. Finally, cover each copper ring 7 with a protective cover to cover the lens mounting slot hole 22, which is used to protect the lens mounting slot hole 22 and prevent dust and foreign matter from falling in. The assembly of the microscope lens rotation module 100 is completed.

[0079] The above is only some embodiments of the present application. Those skilled in the art can make several modifications and improvements without departing from the inventive concept, which are within the scope of the present application.

Claims

1. A microscope lens rotating module assembly process, characterized by: It includes: S1. Prepare the base and turntable: The base includes a support portion and a vertical plate portion, wherein the vertical plate portion is provided with a turntable mounting area for mounting the turntable, and a support shaft, a first hollow groove, a first mounting groove for mounting a PCB board, a second mounting groove for mounting a sensing spring, and a first rotation support plane for supporting the circumferential edge of the turntable are provided at the center of the turntable mounting area; a slot connected to the first hollow groove is provided on the back of the vertical plate portion, and a socket connected to the slot is provided on the side of the vertical plate portion; The turntable includes a central axis hole located at the center and assembled with the support shaft, and a plurality of lens mounting slots distributed annularly at equal angles around the central axis hole; the inner surface of the turntable is provided with a plurality of steel ball mounting holes and magnet mounting holes, and a second rotation support plane is provided at the circumferential edge of the inner surface of the turntable; S2. Pressing steel balls: Provide a profiling jig having a profiling bearing groove formed on its upper surface that is contoured to the turntable; place the turntable with its back side facing upward in the profiling bearing groove; place the profiling jig on a press base, assemble a first pressing head for pressing steel balls on the press, place a steel ball at the bottom of the first pressing head, adjust the position of the profiling jig so that the steel ball on the first pressing head is aligned with the steel ball mounting hole, press the first pressing head downward, press the steel ball into the steel ball mounting hole and press it into place, and repeat the above pressing operation until all steel balls are press-fitted; S3. Measuring steel balls: providing a steel ball detection jig to sequentially detect whether the assembly height of each steel ball on the turntable meets the design requirements; S4. Press-fitting the bearing: Place the turntable with its outer surface facing upward on a support jig, then place it on a press. Assemble a second pressing head for press-fitting the bearing on the press. Place a bearing on the second pressing head. Adjust the position of the support jig so that the second pressing head is aligned with the central shaft hole in the turntable. Press down on the second pressing head to press the bearing smoothly into the central shaft hole. S5. Install the copper ring: Provide the copper ring, clean the lens mounting slot and the copper ring with acetone, apply glue to the lens mounting slot, and then install the copper ring in each lens mounting slot; S6. Assemble the magnet: Apply glue to the magnet mounting hole, use a magnet rod to attract the magnet and place it in the magnet mounting hole, and cover the magnet with tape to maintain pressure; S7. Assemble the spring: Take a sensing spring and stick a rubber sheet on the lower surface of the sensing spring; then screw it into the second mounting slot; S8, installing the PCB board: installing the PCB board into the first installation slot and fastening it with screws; S9. Assemble the turntable and base: S91, cleaning the first rotation support plane on the base and the second rotation support plane on the turntable, and then using a magnet rod to detect whether the polarity of the magnets assembled in step S6 is correctly installed; S92, evenly apply grease on the second rotating support surface, and then press the first annular gasket into place; S93, evenly apply grease on the first annular washer, and then place the ball ring on the first annular washer; S94, evenly apply grease on the first rotating support plane, and then press the second annular gasket into place flatly; S95. Apply grease evenly to the second annular washer, then assemble the turntable on the base, pass the support shaft through the central shaft hole, and assemble an end cap on the end surface of the support shaft. Screw the end cap through the threaded hole at the end of the support shaft to lock and secure it, thereby obtaining a microscope lens rotation module. S96. Turn the dial to check whether it feels smooth; S10, machining the copper ring: placing a plastic protective pad in the lens mounting slot, clamping the lens rotating mold assembly to the fixture of the CNC machine tool, and then machining the inner ring hole wall and the outer surface of the copper ring according to the design requirements; S11. Measure the copper ring flatness, copper ring centering and the rotating torque of the turntable; S12. Installing a bright field ring: Installing a bright field ring on the back of the base at a position corresponding to the first hollow groove and fastening it with screws to complete the assembly of the microscope lens rotation module.

2. The microscope lens rotating module assembly process according to claim 1, wherein: In S7, when locking the sensing spring, first pre-lock the sensing spring with a screw, and then use a turntable fixture that imitates the turntable to press it on the base to simulate the assembly structure of the turntable and the base, and press the base, then use a screwdriver to lock the sensing spring in place, release the pressure on the base, and then rotate the turntable fixture to check whether the turntable fixture rotates smoothly. If not, it is necessary to adjust the tightening height of the screw to ensure that the sensing spring does not interfere with the rotation of the turntable.

3. The microscope lens rotating module assembly process according to claim 1, wherein: In S12, when locking the bright field ring, insert a plug into the slot, and then lock the bright field ring in place so that the plug cannot fall off; finally, cover each copper ring with a protective cover to cover the lens mounting slot.

4. The microscope lens rotating module assembly process according to claim 2, wherein: The turntable fixture is provided with an avoidance operation notch for facilitating the locking operation of the induction spring.

5. The microscope lens rotating module assembly process according to claim 1, wherein: The steel ball mounting holes are arranged at equal angles around the central axis hole.

6. The microscope lens rotating module assembly process according to claim 5, wherein: The number of the steel ball mounting holes corresponds to the number of the lens mounting slot holes.

7. The microscope lens rotating module assembly process according to claim 1, wherein: The steel ball detection jig includes a circular shell that sits on the plane formed by the steel balls during detection, a detection probe arranged inside the circular shell, and a display meter for detecting the upward movement distance of the detection probe; a notch with an opening facing downward is provided on the circumferential surface of the circular shell, and a non-closed annular bottom surface is formed at the bottom end of the circular shell, the inner ring diameter of the annular bottom surface is smaller than the distribution diameter of all the steel balls on the turntable, and the detection probe is arranged in the notch.

8. The microscope lens rotating module assembly process according to claim 7, wherein: The size of the gap is designed so that the annular bottom surface cannot cover all the steel balls at the same time but can cover all the steel balls except one of the steel balls to be detected.

9. The microscope lens rotating module assembly process according to claim 8, wherein: The S3 steel ball measurement includes: placing the steel ball detection fixture upside down on the turntable, and the bottom of the annular shell is located on the plane formed by multiple steel balls. At this time, there is still one steel ball left in the gap, and then aligning the detection probe with the steel ball in the gap. The steel ball is the steel ball to be detected at this time, and the detection probe is located on the top of the steel ball. Observe the reading of the display meter. If the reading is within the allowable range, the steel ball installation meets the requirements, otherwise it does not meet the requirements; then rotate the annular shell so that the detection probe is located on the next steel ball, and perform the detection in the same way until all steel balls complete the above-mentioned height detection.

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