A magnifying glass lens grinding device for microendoscope

Abstract

The present invention discloses a magnifying lens grinding device for a microendoscope, which belongs to the technical field of lens grinding devices, and comprises: a workbench; a top plate, both sides of the bottom end of the top plate are mounted on the workbench through columns; a clamping and adjusting mechanism, the clamping and adjusting mechanism comprises cylinders placed on both sides of the top end of the workbench, one end of the piston rod on the cylinder extends to a push plate in a limit groove, a first slider is fixedly mounted on both ends of the push plate, and a first motor is fixedly mounted at the center of the outer wall of the push plate, the output shaft of the first motor is mounted on a lead screw shaft, and a lead screw nut fixed on a second slider is spirally driven on the lead screw shaft. The present invention can solve the technical problems that the existing clamping mechanism cannot perform adaptive clamping and fixing for lenses of different sizes, and often needs to replace different clamping mechanisms to meet the clamping requirements, and cannot perform good and uniform grinding work on the edge of the lens, so that the thickness of the lens cannot be uniform.

Description

Technical Field

[0001] The invention belongs to the technical field of optical lens grinding devices, and in particular relates to a magnifying lens grinding device for a microendoscope. Background Art

[0002] Endoscope is a detection instrument that integrates traditional optics, ergonomics, precision machinery, modern electronics, mathematics, software, etc. It has image sensors, optical lenses, light sources, mechanical devices, etc. It can enter the stomach through the mouth or enter the body through other natural channels. The optical lens used in the endoscope is made of high-purity silicon, boron, sodium, potassium, zinc, lead, magnesium, calcium, barium and other oxides mixed according to a specific formula, melted at high temperature in a platinum crucible, stirred evenly with ultrasound to remove bubbles; then slowly cooled for a long time to avoid internal stress in the lens. After cooling, the optical lens must be measured by optical instruments to check whether the purity, transparency, uniformity, refractive index and dispersion rate meet the specifications.

[0003] Lens grinding itself is a professional processing process, which aims to adjust the shape, thickness and curvature of the lens to meet the corresponding visual and production processing requirements. During the processing, the lens needs to be polished accordingly to produce lenses that meet the requirements of thickness, smoothness, etc. Generally, it needs to be clamped and then polished. However, the current clamping mechanism cannot adaptively clamp and fix lenses of different sizes. It is often necessary to replace different clamping mechanisms to meet the clamping requirements. Moreover, when the grinding mechanism is working, it cannot perform good and uniform grinding on the edge of the lens, so that the thickness of the lens cannot be uniform, thereby reducing the product quality. Summary of the invention

[0004] The purpose of the present invention is to provide a magnifying lens grinding device for a microendoscope to solve the technical problem that the existing clamping mechanism cannot adaptively clamp and fix lenses of different sizes, and different clamping mechanisms often need to be replaced to meet the clamping requirements. The edge of the lens cannot be well and evenly ground, making the thickness of the lens not uniform.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A magnifying lens grinding device for a microendoscope, comprising:

[0007] Workbench;

[0008] A top plate, both sides of the bottom end of the top plate are mounted on the workbench through columns;

[0009] A clamping adjustment mechanism, the clamping adjustment mechanism includes a cylinder placed on both sides of the top of the workbench, one end of the piston rod on the cylinder extends to the push plate in the limit groove, both ends of the push plate are fixedly installed with a first slider, and the center of the outer wall of the push plate is fixedly installed with a first motor, the output shaft of the first motor is installed on the screw shaft, and the screw shaft is spirally driven with a screw nut fixed on the second slider;

[0010] The second slider is symmetrically arranged relative to the horizontal center axis of the screw shaft, and the second slider is connected to the third slider on the push plate through a movable rod, the third slider is hollow, and an arc-shaped clamping rod adapted to the third slider is fixedly installed at one end;

[0011] A grinding mechanism, the grinding mechanism includes a second motor placed on the top plate, the output shaft of the second motor passes through the top plate and extends to the central gear on the inner wall of the cover body, both ends of the outer wall of the central gear are meshed with rotating teeth, and the rotating teeth are meshed with a gear ring fixed on the inner wall edge of the cover body for transmission, the central gear and the bottom ends of the rotating teeth are correspondingly connected to the first grinding wheel and the second grinding wheel, when the second motor is started, the central gear drives the first grinding wheel to grind the surface of the lens, and at the same time, the rotating teeth rotate around the cover body and grind the edge of the lens;

[0012] Wherein, both sides of the top of the cover body are fixedly connected to the top plate through connecting rods, and a rotating groove connected to the rotating gear is opened at one end of the inner wall of the cover body, and an annular opening is connected to the other end, and the transmission ratio between the central gear and the rotating gears at both ends remains the same;

[0013] A tension installation assembly is provided between the arc-shaped clamping rod and the third slider, the tension installation assembly includes a support rod fixed on the third slider and provided with a notch, the arc-shaped clamping rod is provided with a first limit plate and a second limit plate in sequence in an inwardly extending section, and the inner wall of the support rod is provided with a first protrusion and a second protrusion corresponding to the first limit plate and the second limit plate;

[0014] One end of the arc-shaped clamping rod is integrally formed with a tapered portion extending outwards on the inner wall of the notch, and the tapered portion is connected to the inner wall of the support rod via a spring rod;

[0015] An elastic retaining ring is provided on the inner wall of the support rod close to the arc-shaped clamping rod, a fixing block placed on the outer wall of the arc-shaped clamping rod is provided between the elastic retaining ring and the first protrusion, a rotating shaft placed on the inner wall of the support rod is provided between the first protrusion and the second protrusion, and a roller placed on the inner wall of the support rod is fixedly mounted on the rotating shaft.

[0016] Furthermore, the elastic retaining ring, the first protrusion and the inner wall of the support rod jointly form a first clamping groove, the first protrusion, the second protrusion and the inner wall of the support rod jointly form a second clamping groove, and the elastic retaining ring is made of rubber or resin.

[0017] Furthermore, both ends of the movable rod are mounted on the second slider and the third slider by means of rotational connection, the third slider is connected with a slide groove along the length direction of the push plate, and the limit groove is placed at the center of the workbench and is arranged in a ring shape.

[0018] Furthermore, the cylinder is placed in a strip groove on the workbench, and the cylinder and the workbench are connected by locking and fixing with positioning pins, and the first sliding block is connected with a sliding track along the outer wall of the workbench.

[0019] Furthermore, the slide track is symmetrically arranged relative to the center of the workbench. When the cylinder is started, the push plate drives the clamping adjustment mechanism and the first slider to move in translation on the slide track.

[0020] Furthermore, the output shaft of the second motor and the movable shaft of the central gear are fixedly connected via a coupling, and the vertical center axis of the central gear and the vertical center axis of the first grinding wheel are maintained on the same axis.

[0021] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0022] (1) A clamping adjustment mechanism is provided. First, the first motor is started. With the aid of the screw transmission, the third sliders on both sides are moved in opposite directions, so as to adjust the spacing between the arc-shaped clamping rods. In this way, lenses of different sizes can be adaptively clamped and fixed. Then, the cylinder is started. Under the pushing action of the cylinder, the arc-shaped clamping rod is connected with the lens. The clamping assembly can be moved to the clamping point through the cylinder, thereby effectively improving the applicability of the device. It can effectively limit and fix lenses of different sizes, and has strong connection performance.

[0023] (2) A tension installation component is provided. When the arc-shaped clamping rod is clamped with the lens, the internal spring rod can play a role of buffering and adjustment to prevent the clamping force from being too large and causing squeezing damage to the lens. The first limit plate and the second limit plate connected to the arc-shaped clamping rod can prevent the moving part from sliding and detaching during the clamping process. At the same time, the tapered portion on the arc-shaped clamping rod cooperates with the tapered surface of the inner wall of the support rod, so that when the two are in contact, the force can be dispersed by increasing the contact surface to prevent a large force from being generated at the corresponding point of the structural part. The roller connected to the rotating shaft on the inner wall of the support rod can reduce friction damage to the moving part during the sliding process, thereby increasing the service life of the structural part. Through the setting of a variety of limit protection connectors, the arc-shaped clamping rod can be horizontally docked and clamped on the lens during the movement process, and the clamping tightness can be effectively adjusted, effectively ensuring the safety of the device.

[0024] (3) A grinding mechanism is provided. After the second motor is started, the center gear can be used to drive the first grinding wheel to grind the top surface of the lens. After the center gear rotates, the meshing transmission between the gears can drive the rotation of the rotating teeth at both ends. In this way, the rotating teeth can rotate with the center gear. Moreover, during the rotation of the rotating teeth, the outer wall edge and the gear ring are meshed with each other to ensure the stability and accuracy of the rotation of the rotating teeth and prevent position deviation during the rotation. At the same time, the rotation speed of the rotating teeth at both ends can be increased. In this way, the edge of the lens can be quickly polished by rotational grinding to prevent unevenness on the lens surface, thereby effectively improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a schematic structural diagram of a magnifying lens grinding device for a microendoscope of the present invention;

[0027] Figure 2 is a front view of a magnifying lens grinding device for a microendoscope of the present invention;

[0028] Figure 3 It is a structural schematic diagram of the workbench of the present invention;

[0029] Figure 4 The present invention Figure 1 A is an enlarged view;

[0030] Figure 5 The present invention Figure 1 B is an enlarged view;

[0031] Figure 6 It is a schematic diagram of the meshing transmission of the central gear and the rotating gear of the present invention;

[0032] Figure 7 It is a schematic diagram of the connection between the arc-shaped clamping rod and the support rod of the present invention;

[0033] Figure 8 The present invention Figure 7 Enlarged view of point C.

[0034] 1. The working table includes the following parts: 1. a working table; 2. a top plate; 3. a clamping adjustment mechanism; 4. a cylinder; 5. a push plate; 6. a first slider; 7. a first motor; 8. a lead screw shaft; 9. a second slider; 10. a third slider; 11. a movable rod; 12. an arc-shaped clamping rod; 13. a grinding mechanism; 14. a second motor; 15. a central gear; 16. a rotating gear; 17. a gear ring; 18. a first grinding wheel; 19. a second grinding wheel; 20. a connecting rod; 21. a tension installation assembly; 22. a supporting rod; 23. a first limiting plate; 24. a second limiting plate; 25. a first protrusion; 26. a second protrusion; 27. a conical portion; 28. a spring rod; 29. ​​an elastic retaining ring; 30. a fixing block; 31. a roller; 32. a first clamping groove; 33. a second clamping groove; 34. a sliding track. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Reference Manual Attached Figure 1 As shown, a magnifying lens grinding device for a microendoscope comprises: a workbench 1; a top plate 2, both sides of the bottom end of the top plate 2 are mounted on the workbench 1 through columns;

[0037] The clamping adjustment mechanism 3 includes a cylinder 4 placed on both sides of the top of the workbench 1, one end of the piston rod on the cylinder 4 extends to the push plate 5 in the limit groove, both ends of the push plate 5 are fixedly installed with a first slider 6, and the center of the outer wall of the push plate 5 is fixedly installed with a first motor 7, the output shaft of the first motor 7 is installed on the screw shaft 8, and the screw shaft 8 is spirally driven with a screw nut fixed on the second slider 9; wherein the second slider 9 is symmetrically arranged relative to the horizontal center axis of the screw shaft 8, and the second slider 9 is connected to the third slider 10 on the push plate 5 through a movable rod 11, the third slider 10 is hollow, and one end of the third slider 10 is fixedly installed with an arc-shaped clamping rod 12 adapted thereto;

[0038] A clamping adjustment mechanism 3 is set up, and the first motor 7 is started first. With the help of the spiral transmission, the third sliders 10 on both sides are moved in the opposite direction, so as to adjust the spacing between the arc-shaped clamping rods 12, so that lenses of different sizes can be adaptively clamped and fixed. Then the cylinder 4 is started, and under the pushing action of the cylinder 4, the arc-shaped clamping rod 12 is connected with the lens in a contact manner. The clamping assembly can be moved to the clamping point through the cylinder 4, thereby effectively improving the applicability of the device, and can be effectively limited and fixed according to lenses of different sizes, and the connection performance is strong.

[0039] The working principle of the clamping adjustment mechanism 3 is as follows:

[0040] The first motor 7 starts to drive the screw shaft 8 to rotate. During the rotation of the screw shaft 8, the screw nut drives the second slider 9 to perform translational movement with the help of spiral transmission. Since the movable rod 11 is rotatably connected at both ends of the second slider 9 and the third slider 10, during the movement of the second slider 9, the movable rod 11 can drive the third sliders 10 at both ends to perform translational and reverse movement on the pushing plate 5, so that the corresponding clamping spacing can be adjusted according to lenses of different sizes. Then, under the action of the cylinder 4, the clamping adjustment mechanism 3 performs corresponding clamping and fixing work on the lens.

[0041] Compared with the current lens clamping mechanism, the lens is often clamped and fixed directly through a clamping rod. Different sizes of lenses also need to be replaced with clamping rods of corresponding sizes. Although this operation method can also ensure a good fixing effect, the replacement is inconvenient, which reduces work efficiency and is time-consuming and labor-intensive.

[0042] This patent can effectively improve the clamping effect through the four-point clamping method, and saves the material of the clamping parts, which is beneficial to saving costs. When clamping and fixing lenses of different sizes, it also improves the applicability of the device.

[0043] refer to Figure 2 and Figure 6, a grinding mechanism 13, the grinding mechanism 13 includes a second motor 14 placed on the top plate 2, the output shaft of the second motor 14 passes through the top plate 2 and extends to the central gear 15 on the inner wall of the cover body, both ends of the outer wall of the central gear 15 are meshed with rotating teeth 16, and the rotating teeth 16 are meshed with a gear ring 17 fixed on the inner wall edge of the cover body for transmission, and the bottom ends of the central gear 15 and the rotating teeth 16 are correspondingly connected to the first grinding wheel 18 and the second grinding wheel 19. As the second motor 14 is started, the central gear 15 drives the first grinding wheel 18 to grind the surface of the lens, and at the same time, the rotating teeth 16 rotate around the cover body and grind the edge of the lens;

[0044] Among them, both sides of the top of the cover body are fixedly connected to the top plate 2 through a connecting rod 20, and a rotating groove connected to the rotating gear 16 is opened at one end of the inner wall of the cover body, and an annular opening is connected to the other end, and the transmission ratio between the central gear 15 and the rotating gear 16 at both ends remains the same.

[0045] The setting of the grinding mechanism 13 can be achieved by starting the first grinding wheel 18 and the second grinding wheel 19 at the same time, so that the surface and the outer wall edge of the lens can be ground, and the transmission parts work stably and with high precision. The rotating gear 16 is movably connected between the central gear 15 and the ring gear 17, and can be rotated by the meshing transmission at both ends of the rotating gear 16. At the same time, the second grinding wheel 19 can be set to an inclined shape according to actual needs, so that the grinding angle shape of the lens edge can be adaptively ground.

[0046] A grinding mechanism 13 is provided. After the second motor 14 is started, the first grinding wheel 18 can be driven by the central gear 15 to grind the top surface of the lens. After the central gear 15 rotates, the meshing transmission between the gears can drive the rotation of the rotating teeth 16 at both ends. In this way, the rotating teeth 16 can rotate with the central gear 15, and during the rotation of the rotating teeth 16, the outer wall edge and the gear ring 17 are meshed and transmitted with each other, which can ensure the stability and accuracy of the rotation of the rotating teeth 16 and prevent position deviation during the rotation. At the same time, the rotation speed of the rotating teeth 16 at both ends can be increased, so that the edge of the lens can be quickly grinded by rotational grinding to prevent the surface of the lens from being uneven, thereby effectively improving product quality.

[0047] refer to Figure 1 , Figure 4 and Figure 7 and Figure 8 A tension installation assembly 21 is provided between the arc-shaped clamping rod 12 and the third slider 10. The tension installation assembly 21 includes a support rod 22 fixed on the third slider 10 and having a slot. The inward extension section of the arc-shaped clamping rod 12 is provided with a first limit plate 23 and a second limit plate 24 in sequence, and the inner wall of the support rod 22 is provided with a first protrusion 25 and a second protrusion 26 corresponding to the first limit plate 23 and the second limit plate 24.

[0048] One end of the arc-shaped clamping rod 12 is integrally formed with a tapered portion 27 extending outward on the inner wall of the groove, and the tapered portion 27 is connected to the inner wall of the support rod 22 via a spring rod 28. When the arc-shaped clamping rod 12 moves outward and contacts the lens, the spring rod 28, under the action of the elastic restoring force, causes the tapered portion 27 to contact the tapered surface of the inner wall of the support rod 22. Due to the design of enlarging the contact surface between the two, the force can be effectively dispersed to avoid excessive force on the connection of the arc-shaped clamping rod 12.

[0049] An elastic retaining ring 29 is provided on the inner wall of the support rod 22 near the arc-shaped clamping rod 12, and a fixing block 30 arranged on the outer wall of the arc-shaped clamping rod 12 is provided between the elastic retaining ring 29 and the first protrusion 25. A rotating shaft arranged on the inner wall of the support rod 22 is provided between the first protrusion 25 and the second protrusion 26, and a roller 31 arranged on the inner wall of the support rod 22 is fixedly mounted on the rotating shaft. When the arc-shaped clamping rod 12 clamps and fixes the lens, the elastic retaining ring 29 can play a role of limiting protection for the moving arc-shaped clamping rod 12. The elastic retaining ring 29 is set in a downwardly protruding semi-elliptical shape. Since it has the function of elastic buffer protection, the arc-shaped clamping rod 12 moves inward when squeezing the lens, which can play a buffering transition effect. Moreover, since the fixing block 30 on the arc-shaped clamping rod 12 increases its resistance area when contacting with the elastic retaining ring 29, it can prevent the extrusion force of the arc-shaped clamping rod 12 from being too large and reduce its sliding speed, thereby preventing the arc-shaped clamping rod 12 from colliding with the inner wall of the support rod 22.

[0050] A tension installation component 21 is provided. When the arc-shaped clamping rod 12 is clamped with the lens, the internal spring rod 28 can play a role of buffering and adjustment to prevent the lens from being squeezed and damaged by excessive clamping force. The first limit plate 23 and the second limit plate 24 connected to the arc-shaped clamping rod 12 can prevent the moving part from sliding and disengaging during the clamping process. At the same time, the tapered portion 27 on the arc-shaped clamping rod 12 cooperates with the tapered surface of the inner wall of the support rod 22, so that when the two are in contact, the force can be dispersed by increasing the contact surface to prevent a large force from being generated at the corresponding point of the structural part. The roller 31 connected to the rotating shaft on the inner wall of the support rod 22 can reduce friction damage to the moving part during sliding, thereby increasing the service life of the structural part. Through the setting of a variety of limit protection connecting parts, the arc-shaped clamping rod 12 can be horizontally docked and clamped on the lens during movement, and the clamping tightness can be effectively adjusted, effectively ensuring the safety of the device.

[0051] At the same time, the elastic retaining ring 29, the first protrusion 25 and the inner wall of the support rod 22 jointly form a first clamping groove 32, the first protrusion 25, the second protrusion 26 and the inner wall of the support rod 22 jointly form a second clamping groove 33, and the elastic retaining ring 29 is made of rubber or resin. The structural design of the first clamping groove 32 and the second clamping groove 33 allows the arc-shaped clamping rod 12 to have a corresponding moving track during the movement process, thereby avoiding the deviation of the movement position.

[0052] refer to Figure 1 , Figure 3 , Figure 4 and Figure 5 , both ends of the movable rod 11 are installed on the second slider 9 and the third slider 10 by a rotational connection. The third slider 10 is connected with a slide groove along the length direction of the push plate 5. The limit groove is placed at the center of the workbench 1 and is arranged in a ring shape. The cylinder 4 is placed in the strip groove on the workbench 1, and the cylinder 4 and the workbench 1 are connected by a locating pin and locked and fixed. The first slider 6 is connected with a sliding track 34 along the outer wall of the workbench 1. The sliding track 34 can play a role in moving guide for the translational movement of the first slider 6. The above-mentioned connection method between the cylinder 4 and the workbench 1 can also be installed by a brake pin and a bolt assembly. Since the above-mentioned connection assembly and the corresponding installation method are conventional technical means for those skilled in the art, this patent will not be described in detail here.

[0053] The slide track 34 is symmetrically arranged relative to the center of the workbench 1. As the cylinder 4 is started, the push plate 5 drives the clamping adjustment mechanism 3 and the first slider 6 to translate on the slide track 34. The output shaft of the second motor 14 and the movable shaft of the center gear 15 are fixedly connected by a coupling, and the vertical center axis of the center gear 15 and the vertical center axis of the first grinding wheel 18 are maintained on the same axis.

[0054] The strip groove on the workbench 1 provides storage space for the installation of the cylinder 4. The first sliders 6 at both ends of the push plate 5 can not only limit the movement of the third slider 10, but also allow the entire clamping adjustment mechanism 3 to move accurately on the track. At the same time, the coupling is set between the output shaft of the second motor 14 and the movable shaft of the central gear 15 to ensure the stability of the transmission force transmission and effectively transmit the force to the central gear 15. At the same time, the same axis setting method of the vertical central axis allows the first grinding wheel 18 to rotate accurately with the central gear 15 as the center.

[0055] Both sides of the bottom end of the top plate 2 are installed on the workbench 1 through columns. A base connected to the ground is arranged around the bottom end of the workbench 1. A pad can be adhesively installed on the base. This can increase a certain height and at the same time increase the safety performance of the device. The pad can also be set to a corresponding elastic protective material.

[0056] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

[0057] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A magnifying lens polishing device for a microendoscope, characterized in that: include: Workbench (1); A top plate (2), wherein both sides of the bottom end of the top plate (2) are mounted on the workbench (1) via columns; A clamping adjustment mechanism (3), the clamping adjustment mechanism (3) comprising a cylinder (4) disposed on both sides of the top of the workbench (1), one end of a piston rod on the cylinder (4) extending to a push plate (5) in a limit groove, first sliders (6) being fixedly mounted on both ends of the push plate (5), and a first motor (7) being fixedly mounted at the center of an outer wall of the push plate (5), an output shaft of the first motor (7) being mounted on a lead screw shaft (8), and a lead screw nut fixed on a second slider (9) being spirally driven on the lead screw shaft (8); The second slider (9) is symmetrically arranged relative to the horizontal center axis of the screw shaft (8), and the second slider (9) is connected to the third slider (10) on the push plate (5) via a movable rod (11); the third slider (10) is hollow, and an arc-shaped clamping rod (12) matching the third slider (10) is fixedly mounted on one end of the third slider (10); A grinding mechanism (13), the grinding mechanism (13) comprising a second motor (14) disposed on a top plate (2), the output shaft of the second motor (14) passing through the top plate (2) and extending to a central gear (15) on the inner wall of the cover body, both ends of the outer wall of the central gear (15) being meshed with rotating teeth (16), and the rotating teeth (16) being meshed with a gear ring (17) fixed on the inner wall edge of the cover body for transmission, the bottom ends of the central gear (15) and the rotating teeth (16) being connected to a first grinding wheel (18) and a second grinding wheel (19) respectively, when the second motor (14) is started, the central gear (15) drives the first grinding wheel (18) to grind the surface of the lens, and at the same time the rotating teeth (16) rotate around the cover body and grind the edge of the lens; Wherein, both sides of the top end of the cover body are fixedly connected to the top plate (2) via connecting rods (20), and a rotation groove connected to the rotating gear (16) is opened at one end of the inner wall of the cover body, and an annular opening is connected to the other end, and the transmission ratio between the central gear (15) and the rotating gear (16) at both ends remains the same; A tension installation assembly (21) is provided between the arc-shaped clamping rod (12) and the third slider (10), the tension installation assembly (21) comprising a support rod (22) fixed on the third slider (10) and provided with a notch, a first limit plate (23) and a second limit plate (24) are provided in sequence on an inwardly extending section of the arc-shaped clamping rod (12), and a first protrusion (25) and a second protrusion (26) corresponding to the first limit plate (23) and the second limit plate (24) are provided on an inner wall of the support rod (22); One end of the arc-shaped clamping rod (12) is integrally connected to an inner wall of the notch and is provided with a tapered portion (27) extending outward, the tapered portion (27) and the inner wall of the support rod (22) being connected via a spring rod (28); An elastic retaining ring (29) is provided on the inner wall of the support rod (22) near the arc-shaped clamping rod (12); a fixing block (30) disposed on the outer wall of the arc-shaped clamping rod (12) is provided between the elastic retaining ring (29) and the first protrusion (25); a rotating shaft disposed on the inner wall of the support rod (22) is provided between the first protrusion (25) and the second protrusion (26); a roller (31) disposed on the inner wall of the support rod (22) is fixedly mounted on the rotating shaft.

2. The device for polishing a magnifying lens for a microendoscope according to claim 1, characterized in that: The elastic retaining ring (29), the first protrusion (25) and the inner wall of the support rod (22) together form a first clamping groove (32), the first protrusion (25), the second protrusion (26) and the inner wall of the support rod (22) together form a second clamping groove (33), and the elastic retaining ring (29) is made of rubber or resin.

3. The device for polishing a magnifying lens for a microendoscope according to claim 1, characterized in that: Both ends of the movable rod (11) are mounted on the second slider (9) and the third slider (10) by means of a rotational connection; the third slider (10) is connected with a slide groove along the length direction of the push plate (5); the limit groove is located at the center of the workbench (1) and is arranged in a ring shape.

4. The device for polishing a magnifying lens for a microendoscope according to claim 1, characterized in that: The cylinder (4) is placed in a strip groove on the workbench (1), and the cylinder (4) and the workbench (1) are connected in a locking and fixing manner by means of positioning pins, and the first sliding block (6) is connected to a sliding track (34) along the outer wall of the workbench (1).

5. The device for polishing a magnifying lens for a microendoscope according to claim 4, characterized in that: The slide track (34) is symmetrically arranged relative to the center of the workbench (1), and when the cylinder (4) is started, the push plate (5) drives the clamping adjustment mechanism (3) and the first slide block (6) to move in translation on the slide track (34).

6. The device for polishing a magnifying lens for a microendoscope according to claim 1, characterized in that: The output shaft of the second motor (14) and the movable shaft of the central gear (15) are fixedly connected via a coupling, and the vertical center axis of the central gear (15) and the vertical center axis of the first grinding wheel (18) are maintained on the same axis.

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