A lens barrel step surface polishing device and method

Abstract

The present invention discloses a lens barrel step surface polishing device and method, belonging to the lens barrel processing technology field. A lens barrel step surface polishing device includes a base, and also includes: a device box, fixedly connected to the top of the base, wherein the device box is provided with a top cavity and a bottom cavity distributed up and down, and the top of the device box is provided with a mounting hole connected with the top cavity; a cylinder sleeved and installed in the mounting hole, wherein the upper end of the cylinder is provided with an annular groove, a clamp is installed in the annular groove, and the device box is provided with a driving part for driving the cylinder to rotate; a polishing disc is arranged above the cylinder, wherein the device box is provided with a lifting part for driving the polishing disc to rise and fall; the present invention can quickly complete the polishing, rinsing and drying of the lens barrel step surface, and indirectly improve the processing efficiency of the lens barrel.

Description

Technical Field

[0001] The invention relates to the technical field of optical instrument processing, and in particular to a lens barrel step surface polishing device and method. Background Art

[0002] The lens barrel is an important component of optical equipment. It is usually a cylindrical tube that is used to fix and protect the optical components inside, such as lenses, mirrors and other components. The design and construction of the lens barrel have a crucial impact on the performance of optical instruments. For example, in the semiconductor processing process, the requirements for optical instruments are extremely high, and there are strict requirements for precision and flatness, thereby ensuring accuracy in the production of single conductor wafers.

[0003] In the prior art, in order to ensure the installation accuracy of the lens in the lens barrel, polishing is performed on the step surface of the lens barrel to make the step surface of the lens barrel smoother. However, the entire polishing process is currently mainly performed manually, and after polishing, other equipment is required to rinse and air-dry the lens barrel, which seriously affects the processing efficiency of the lens barrel. Summary of the invention

[0004] The purpose of the present invention is to solve the problem of low efficiency when manually polishing the step surface of a lens barrel in the prior art, and to propose a lens barrel step surface polishing device and method.

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

[0006] A lens barrel step surface polishing device comprises a base, and also includes: a device box fixedly connected to the top of the base, wherein the device box is provided with a top cavity and a bottom cavity distributed up and down, and the top of the device box is provided with a mounting hole connected to the top cavity; a cylinder sleeved and installed in the mounting hole, wherein the upper port of the cylinder is provided with an annular groove, a clamp is installed in the annular groove, and the device box is provided with a driving part for driving the cylinder to rotate; a polishing disc is arranged above the cylinder, wherein the device box is provided with a lifting part for driving the polishing disc to rise and fall.

[0007] In order to enable the cylinder to rotate continuously, preferably, the driving part includes a driving motor fixedly mounted on the device box, the output shaft of the driving motor is fixedly mounted with a driving gear, and the outer wall of the cylinder is fixedly mounted with a ring gear meshing with the driving gear.

[0008] In order to facilitate driving the polishing disc up and down, preferably, the lifting part includes a lifting device fixedly installed on the outer wall of the device box, and a bracket is longitudinally slidably connected to the device box, the bracket is fixedly connected to the telescopic end of the lifting device, and the polishing disc is installed on the bracket.

[0009] In order to facilitate the flushing of the polished lens barrel, preferably, a vertical pipe fixedly connected to the bracket is provided in the top cavity, a plurality of circumferentially distributed nozzles are installed on the top of the vertical pipe, the top of the vertical pipe and the nozzles are arranged in the cylinder, and the lower end of the vertical pipe is fixedly connected to a hose extending into the bottom cavity, and a solenoid valve is fixedly installed in the hose.

[0010] In order to facilitate the pressurization of the bottom cavity, a telescopic airbag is further installed between the bracket and the inner bottom of the top cavity, and the telescopic airbag is fixedly connected to an intake pipe and an exhaust pipe connected thereto. A one-way valve is fixedly installed in the exhaust pipe and the intake pipe, and the end of the exhaust pipe extends into the bottom cavity.

[0011] In order to dissipate heat from the polishing disc, further, a short tube is installed on the bracket, the bottom of the short tube is fixedly connected to an end cover, the polishing disc is fixedly connected to the lower port of the end cover, an air inlet is provided at the lower end of the polishing disc, the input end of the air intake pipe is connected to the short tube, and a filter element is installed in the short tube.

[0012] In order to make the polishing disc rotate, further, a worm is rotatably mounted on the bracket, a worm wheel meshingly connected with the worm is fixedly mounted on the short tube, and a linkage part for driving the worm to rotate is provided on the bracket.

[0013] In order to make the polishing disc rotate, the linkage part further includes a drum fixedly mounted on the end of the worm shaft, a torsion spring is installed between the drum and the bracket, a pull rope is fixedly wrapped around the outer wall of the drum, and the end of the pull rope is fixedly connected to the device box.

[0014] In order to make the cylinder shake reciprocatingly up and down, further, an annular table is longitudinally slidably connected in the top cavity, the lower end of the cylinder is rotatably connected to the annular table, the inner wall of the top cavity is fixedly connected to a support, and a spring is installed between the annular table and the support, wherein a plurality of circumferentially distributed protrusions are fixedly connected to the lower end of the cylinder, and a roller is rotatably installed on the outer wall of the vertical tube through a horizontal axis, and the roller is fitted to the lower end surface of the cylinder.

[0015] A method for polishing the step surface of a lens barrel, the operating steps are as follows:

[0016] Step 1: Fix the lens barrel into the annular groove of the cylinder;

[0017] Step 2: Insert the polishing disc into the lens barrel and rotate the lens barrel;

[0018] Step 3: Reset the polishing disc upward;

[0019] Step 4: Rinse the inner wall of the rotating lens barrel;

[0020] Step 5: Shake the lens barrel up and down while washing;

[0021] Step 6: Stop flushing the lens barrel and rotate the lens barrel to dry the cleaning liquid on the inner wall.

[0022] Compared with the prior art, the present invention provides a lens barrel step surface polishing device, which has the following beneficial effects:

[0023] 1. The lens barrel step surface polishing device drives the cylinder to rotate through a driving motor, and the cylinder drives the internal lens barrel to rotate. The polishing disc automatically completes the polishing work of the lens barrel step surface. Its operation is simpler and more convenient, which indirectly improves the processing efficiency of the lens barrel.

[0024] 2. The lens barrel step surface polishing device drives the polishing disc to move upward and reset through the bracket. The bracket will also drive the vertical pipe into the lens barrel. At this time, the solenoid valve in the hose is opened to quickly complete the automatic cleaning of the lens barrel, thereby improving the processing efficiency of the lens barrel. Since the lens barrel is in a self-rotating state, the nozzle can flush the lens barrel more comprehensively.

[0025] 3. The lens barrel step surface polishing device rotates the cylinder, and the protrusions at the bottom of the cylinder are pressed upward in sequence by the roller. Therefore, the continuously rotating cylinder will also shake up and down, and drive the internal lens barrel to shake up and down, thereby improving the washing effect of the lens barrel.

[0026] 4. The lens barrel step surface polishing device closes the solenoid valve in the hose, and the rotating and up and down shaking lens barrel will be efficiently dried, thereby further improving the processing efficiency of the lens barrel.

[0027] 5. The lens barrel step surface polishing device compresses the telescopic airbag through the bracket, and the telescopic airbag blows air into the bottom cavity through the exhaust pipe, thereby automatically completing the pressurization work of the bottom cavity, which is more convenient to use.

[0028] 6. The step surface polishing device of the lens barrel stretches the telescopic airbag through the bracket, and the end cover draws air through the air inlet hole on the polishing disc. When the air flow passes through the air inlet hole, the polishing disc can be cooled to increase the service life of the polishing disc. It can also take away some dust on the polishing disc and the inner wall of the lens barrel to ensure the polishing efficiency of the polishing disc and facilitate the subsequent flushing of the lens barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the axonometric structure of a lens barrel step surface polishing device proposed by the present invention from a first viewing angle;

[0030] Figure 2 A schematic diagram of the axonometric structure of a lens barrel step surface polishing device proposed by the present invention from a second viewing angle;

[0031] Figure 3A schematic structural diagram of a lens barrel step surface polishing device in use state proposed by the present invention;

[0032] Figure 4 This is a schematic diagram of an axonometric cross-section structure of a lens barrel step surface polishing device proposed by the present invention;

[0033] Figure 5 A schematic diagram of the partial axonometric structure of a lens barrel step surface polishing device proposed by the present invention;

[0034] Figure 6 This is a schematic diagram of the axonometric structure of a bracket of a lens barrel step surface polishing device proposed by the present invention;

[0035] Figure 7 A schematic diagram of the cylindrical axonometric structure of a lens barrel step surface polishing device proposed by the present invention;

[0036] Figure 8 This is a schematic diagram of the vertical tube axonometric structure of a lens barrel step surface polishing device proposed by the present invention.

[0037] In the figure: 1. base; 2. device box; 3. top cavity; 4. bottom cavity; 5. mounting hole; 6. cylinder; 7. annular groove; 8. fixture; 9. lifting device; 10. bracket; 11. polishing disc; 12. driving motor; 13. driving gear; 14. ring gear; 15. vertical pipe; 16. nozzle; 17. hose; 18. annular table; 19. support; 20. spring; 21. horizontal axis; 22. roller; 23. telescopic airbag; 24. exhaust pipe; 25. end cover; 26. short pipe; 27. air inlet; 28. filter element; 29. ​​suction pipe; 30. worm; 31. worm wheel; 32. pull rope; 33. bump; 34. reel. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0039] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0040] Embodiment 1:

[0041] Reference Figure 1-Figure 8A lens barrel step surface polishing device comprises a base 1, and also comprises: a device box 2, which is fixedly connected to the top of the base 1, wherein a top cavity 3 and a bottom cavity 4 distributed up and down are arranged in the device box 2, the top cavity 3 is used to store sewage, and the bottom cavity 4 is used to store cleaning liquid, and a circular mounting hole 5 connected with the top cavity 3 is arranged on the top of the device box 2; a cylinder 6 is sleeved and installed in the mounting hole 5, wherein an annular groove 7 is arranged at the upper end of the cylinder 6, and a clamp 8 is installed in the annular groove 7, and the clamp 8 is used to fix the lens barrel in the annular groove 7, and the clamp 8 can adopt a triangular chuck, and a driving part for driving the cylinder 6 to rotate is arranged on the device box 2; a polishing disc 11 is arranged above the cylinder 6, wherein a lifting part for driving the polishing disc 11 to move up and down is arranged on the device box 2.

[0042] Specifically, when in use, the lens barrel is placed vertically in the annular groove 7, and the lens barrel is fixed in the annular groove 7 by the clamp 8, and then the polishing disk 11 is driven into the lens barrel by the lifting part until the polishing disk 11 is attached to the step surface of the lens barrel, and then the cylinder 6 is driven to rotate by the driving part, and the cylinder 6 will drive the internal lens barrel to rotate, and the polishing disk 11 automatically completes the polishing work of the step surface of the lens barrel. The operation is simpler and more convenient, which indirectly improves the processing efficiency of the lens barrel.

[0043] Embodiment 2:

[0044] Reference Figure 1-Figure 7 , which is basically the same as the first embodiment, and further discloses a specific implementation plan of the driving part and the lifting part.

[0045] The driving unit comprises a driving motor 12 fixedly mounted on the device box 2 , a driving gear 13 is fixedly mounted on the output shaft of the driving motor 12 , and a ring gear 14 meshingly connected with the driving gear 13 is fixedly mounted on the outer wall of the cylinder 6 .

[0046] Specifically, when the cylinder 6 needs to rotate, the drive motor 12 is started, and the drive motor 12 will drive the ring gear 14 to rotate through the driving gear 13, and the ring gear 14 will drive the cylinder 6 to rotate, and the cylinder 6 will drive the internal lens barrel to rotate, and the polishing disk 11 automatically completes the polishing of the lens barrel step surface.

[0047] The lifting part comprises a lifting device 9 fixedly mounted on the outer wall of the device box 2 , a bracket 10 is longitudinally slidably connected to the device box 2 , the bracket 10 is fixedly connected to the telescopic end of the lifting device 9 , and a polishing disc 11 is mounted on the bracket 10 .

[0048] Specifically, when the polishing disc 11 needs to be lifted up or down, the bracket 10 can be driven to lift up or down by the lifting device 9, and the lifting device 9 can be an electric telescopic rod.

[0049] Embodiment three:

[0050] Reference Figure 4 , Figure 5 , Figure 7 as well as Figure 8 , which is basically the same as the second embodiment, and further discloses a specific implementation scheme for flushing the lens barrel.

[0051] The top cavity 3 is provided with a vertical pipe 15 fixedly connected to the bracket 10, and a plurality of circumferentially distributed nozzles 16 are installed on the top of the vertical pipe 15. The top of the vertical pipe 15 and the nozzles 16 are arranged in the cylinder 6. The lower end of the vertical pipe 15 is fixedly connected with a hose 17 extending into the bottom cavity 4, and a solenoid valve is fixedly installed in the hose 17.

[0052] Specifically, when the bracket 10 drives the polishing disc 11 to move upward and reset, the bracket 10 will also drive the vertical pipe 15 to extend into the lens barrel. At this time, the solenoid valve in the hose 17 is opened, and the cleaning liquid in the bottom cavity 4 will be transported to the vertical pipe 15 through the hose 17. The vertical pipe 15 will be sprayed to the inner wall of the lens barrel through the nozzle 16 at the top, so that the automatic cleaning of the lens barrel can be completed quickly, thereby improving the processing efficiency of the lens barrel. Since the lens barrel is in a self-rotating state, the nozzle 16 can flush the lens barrel more comprehensively.

[0053] A telescopic airbag 23 is installed between the above-mentioned bracket 10 and the inner bottom of the top cavity 3. The telescopic airbag 23 is fixedly connected with an intake pipe 29 and an exhaust pipe 24 which are connected thereto. A one-way valve is fixedly installed in the exhaust pipe 24 and the intake pipe 29. The end of the exhaust pipe 24 extends into the bottom cavity 4.

[0054] Specifically, when the bracket 10 moves downward, the bracket 10 will compress the telescopic airbag 23, and the telescopic airbag 23 will blow air into the bottom cavity 4 through the exhaust pipe 24, thereby automatically completing the pressurization of the bottom cavity 4, which is more convenient to use. When the bracket 10 moves upward to reset, the bracket 10 will stretch the telescopic airbag 23, and the telescopic airbag 23 will absorb air through the intake pipe 29.

[0055] An annular platform 18 is longitudinally slidably connected in the top cavity 3, and the lower end of the cylinder 6 is rotatably connected to the annular platform 18. A support 19 is fixedly connected to the inner wall of the top cavity 3, and a spring 20 is installed between the annular platform 18 and the support 19. Among them, a plurality of circumferentially distributed protrusions 33 are fixedly connected to the lower end of the cylinder 6, and the number of the protrusions 33 is 6-16, and the preferred number in this application is 12. The outer wall of the vertical tube 15 is rotatably installed with a roller 22 through a horizontal axis 21, and the roller 22 is attached to the lower end surface of the cylinder 6.

[0056] When the polishing disc 11 and the vertical tube 15 move downward, the vertical tube 15 will drive the roller 22 to move away from the bottom of the cylinder 6. When the step surface of the lens barrel is polished, the cylinder 6 will not be driven by the cylinder 6 to shake up and down.

[0057] Embodiment 4:

[0058] Reference Figure 1-Figure 6 , which is basically the same as the third embodiment, and further, a specific implementation scheme for dissipating heat for the polishing disc 11 is specifically added.

[0059] A short tube 26 is installed on the above-mentioned bracket 10, and an end cover 25 is fixedly connected to the bottom of the short tube 26. The polishing disc 11 is fixedly connected to the lower port of the end cover 25. An air inlet 27 is provided at the lower end of the polishing disc 11. The input end of the air intake pipe 29 is connected to the short tube 26, and a filter element 28 is installed in the short tube 26.

[0060] Specifically, when the air intake pipe 29 draws air, the air intake pipe 29 will draw air into the short tube 26, the short tube 26 will draw air into the end cover 25, and the end cover 25 will draw air through the air inlet hole 27 on the polishing disk 11. When the air flow passes through the air inlet hole 27, the polishing disk 11 can be cooled to increase the service life of the polishing disk 11, and some dust on the polishing disk 11 and the inner wall of the lens barrel can be taken away to ensure the polishing efficiency of the polishing disk 11, and to facilitate the subsequent flushing of the lens barrel. At the same time, the sucked dust will be filtered by the filter element 28.

[0061] Embodiment five:

[0062] Reference Figure 4-Figure 6 , which is basically the same as the fourth embodiment, and further, a specific implementation scheme for rotating the polishing disc 11 is specifically added.

[0063] A worm 30 is rotatably mounted on the bracket 10, a worm wheel 31 meshingly connected to the worm 30 is fixedly mounted on the short tube 26, and a linkage portion for driving the worm 30 to rotate is provided on the bracket 10, the linkage portion includes a drum 34 fixedly mounted on the axial end of the worm 30, a torsion spring is installed between the drum 34 and the bracket 10, a pull rope 32 is fixedly wound on the outer wall of the drum 34, and the end of the pull rope 32 is fixedly connected to the device box 2.

[0064] Specifically, when the bracket 10 moves upward, the device box 2 will pull the pull rope 32 to unload the pull rope 32 from the reel 34, and the reel 34 will rotate and drive the worm 30 to rotate. The worm 30 will drive the short tube 26 to rotate through the worm gear 31, and the short tube 26 will drive the polishing disk 11 to rotate through the end cover 25. The polishing disk 11 can shake off the dust adhered to its surface and absorb the dust on the inner wall of the lens barrel more efficiently. When the bracket 10 moves downward, the device box 2 will no longer pull the pull rope 32, and the torsion spring will drive the reel 34 to reverse, so that the pull rope 32 is automatically wound around the reel 34 for subsequent continuous use.

[0065] A method for polishing the step surface of a lens barrel, the operating steps are as follows:

[0066] Step 1: Fix the lens barrel into the annular groove 7 of the cylinder 6;

[0067] Step 2: Insert the polishing disc 11 into the lens barrel and rotate the lens barrel;

[0068] Step 3: Reset the polishing disc 11 upward;

[0069] Step 4: Rinse the inner wall of the rotating lens barrel;

[0070] Step 5: Shake the lens barrel up and down while washing;

[0071] Step 6: Stop flushing the lens barrel and rotate the lens barrel to dry the cleaning liquid on the inner wall.

[0072] When the lens barrel step surface polishing device is in use, the lens barrel is vertically placed in the annular groove 7, and the lens barrel is fixed in the annular groove 7 by the clamp 8, and then the lifting device 9 drives the bracket 10 to move downward, and the bracket 10 drives the polishing disc 11 to extend into the lens barrel until the polishing disc 11 fits on the step surface of the lens barrel, and then the driving motor 12 is started, and the driving motor 12 drives the annular gear 14 to rotate through the active gear 13, and the annular gear 14 drives the cylinder 6 to rotate, and the cylinder 6 drives the internal lens barrel to rotate, and the polishing disc 11 automatically completes the polishing work of the lens barrel step surface, and its operation is simpler and more convenient, which indirectly improves the processing efficiency of the lens barrel, and after the polishing is completed, the polishing disc 11 is driven by the lifting device 9 to move upward and reset.

[0073] When the bracket 10 drives the polishing disc 11 to move upward and reset, the bracket 10 will also drive the vertical pipe 15 to extend into the lens barrel. At this time, the solenoid valve in the hose 17 is opened, and the cleaning liquid in the bottom cavity 4 will be transported to the vertical pipe 15 through the hose 17. The vertical pipe 15 will be sprayed to the inner wall of the lens barrel through the nozzle 16 on the top, so that the automatic cleaning work of the lens barrel can be completed quickly, which improves the processing efficiency of the lens barrel. Since the lens barrel is in a self-rotating state, the nozzle 16 can flush the lens barrel more comprehensively.

[0074] When the polishing disc 11 and the vertical tube 15 move downward, the vertical tube 15 will drive the roller 22 to move away from the bottom of the cylinder 6. When the step surface of the lens barrel is polished, the cylinder 6 will not be driven by the cylinder 6 to shake up and down.

[0075] When the bracket 10 moves downward, the bracket 10 will compress the telescopic airbag 23, and the telescopic airbag 23 will blow air into the bottom cavity 4 through the exhaust pipe 24, thereby automatically completing the pressurization work of the bottom cavity 4, which is more convenient to use. When the bracket 10 moves upward to reset, the bracket 10 will stretch the telescopic airbag 23, and the telescopic airbag 23 will inhale air into the short tube 26 through the suction pipe 29, and the short tube 26 will inhale air into the end cover 25, and the end cover 25 will absorb air through the air inlet 27 on the polishing disk 11. When the air flow passes through the air inlet 27, the polishing disk 11 can be cooled, thereby improving the service life of the polishing disk 11, and it can also take away some dust on the polishing disk 11 and the inner wall of the lens barrel, thereby ensuring the polishing efficiency of the polishing disk 11 and facilitating the subsequent flushing of the lens barrel. At the same time, the absorbed dust will be filtered by the filter element 28.

[0076] When the bracket 10 moves upward, the device box 2 will pull the pull rope 32 to unload the pull rope 32 from the reel 34, and the reel 34 will rotate and drive the worm 30 to rotate. The worm 30 will drive the short tube 26 to rotate through the worm gear 31, and the short tube 26 will drive the polishing disk 11 to rotate through the end cover 25. The polishing disk 11 can shake off the dust adhered to its surface and absorb the dust on the inner wall of the lens barrel more efficiently. When the bracket 10 moves downward, the device box 2 will no longer pull the pull rope 32, and the torsion spring will drive the reel 34 to reverse, so that the pull rope 32 is automatically wound around the reel 34 for subsequent continuous use.

[0077] The above description is only a preferred specific implementation manner 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 scheme and inventive concept 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.

Claims

1. A lens barrel step surface polishing device, comprising a base (1), characterized in that: Also includes: A device box (2) is fixedly connected to the top of the base (1), The device box (2) is provided with a top cavity (3) and a bottom cavity (4) which are distributed up and down, and a mounting hole (5) which is in communication with the top cavity (3) is provided at the top of the device box (2); A cylinder (6) is sleeved and installed in the installation hole (5). The upper end of the cylinder (6) is provided with an annular groove (7), a clamp (8) is installed in the annular groove (7), and a driving part for driving the cylinder (6) to rotate is provided on the device box (2); A polishing disc (11) is arranged above the cylinder (6). Wherein, the device box (2) is provided with a lifting part for driving the polishing disc (11) to move up and down; The lifting part comprises a lifting device (9) fixedly mounted on the outer wall of the device box (2); a bracket (10) is longitudinally slidably connected to the device box (2); the bracket (10) is fixedly connected to the telescopic end of the lifting device (9); and the polishing disc (11) is mounted on the bracket (10); The top chamber (3) is provided with a vertical pipe (15) fixedly connected to the bracket (10), a plurality of nozzles (16) distributed circumferentially are installed on the top of the vertical pipe (15), the top of the vertical pipe (15) and the nozzles (16) are arranged in the cylinder (6), the lower end of the vertical pipe (15) is fixedly connected with a hose (17) extending into the bottom chamber (4), and a solenoid valve is fixedly installed in the hose (17); A telescopic airbag (23) is installed between the bracket (10) and the inner bottom of the top cavity (3); an air intake pipe (29) and an air discharge pipe (24) which are in communication with the telescopic airbag (23) are fixedly connected to the telescopic airbag (23); a check valve is fixedly installed in each of the air discharge pipe (24) and the air intake pipe (29); and a distal end of the air discharge pipe (24) extends into the bottom cavity (4); A short tube (26) is installed on the bracket (10), the bottom of the short tube (26) is fixedly connected to an end cover (25), the polishing disc (11) is fixedly connected to the lower end of the end cover (25), an air inlet hole (27) is provided at the lower end of the polishing disc (11), the input end of the air intake pipe (29) is connected to the short tube (26), and a filter element (28) is installed in the short tube (26); A worm (30) is rotatably mounted on the bracket (10), a worm wheel (31) meshingly connected with the worm (30) is fixedly mounted on the short tube (26), and a linkage part for driving the worm (30) to rotate is provided on the bracket (10); The linkage part comprises a drum (34) fixedly mounted on the shaft end of the worm (30), a torsion spring is installed between the drum (34) and the bracket (10), a pull rope (32) is fixedly wound around the outer wall of the drum (34), and the end of the pull rope (32) is fixedly connected to the device box (2); An annular platform (18) is longitudinally slidably connected in the top cavity (3), the lower end of the cylinder (6) is rotatably connected to the annular platform (18), the inner wall of the top cavity (3) is fixedly connected to a support (19), a spring (20) is installed between the annular platform (18) and the support (19), wherein a plurality of circumferentially distributed protrusions (33) are fixedly connected to the lower end of the cylinder (6), and a roller (22) is rotatably installed on the outer wall of the vertical tube (15) via a transverse axis (21), and the roller (22) is fitted to the lower end surface of the cylinder (6).

2. A lens barrel step surface polishing device according to claim 1, characterized in that: The driving unit comprises a driving motor (12) fixedly mounted on a device box (2); a driving gear (13) is fixedly mounted on an output shaft of the driving motor (12); and a ring gear (14) meshingly connected with the driving gear (13) is fixedly mounted on an outer wall of the cylinder (6).

3. A method for polishing a lens barrel step surface, comprising a lens barrel step surface polishing device according to any one of claims 1 to 2, characterized in that: The steps are as follows: Step 1: Fix the lens barrel into the annular groove (7) of the cylinder (6); Step 2: insert the polishing disc (11) into the lens barrel and rotate the lens barrel; Step 3: repositioning the polishing disc (11) upward; Step 4: Rinse the inner wall of the rotating lens barrel; Step 5: Shake the lens barrel up and down while washing; Step 6: Stop flushing the lens barrel and rotate it to dry the cleaning liquid on the inner wall.

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