Diaphragm coating fixing device for lens

Abstract

The utility model discloses a diaphragm coating fixing device for a lens. The diaphragm coating fixing device effectively solves the problem that a diaphragm is inconvenient to assemble, disassemble and uniformly coat during coating. Comprising a base plate, the upper end of the base plate is fixedly connected with a top plate, the middle of the top plate is fixedly connected with a sleeve, the upper side of the base plate is provided with a plurality of clamping assemblies evenly distributed in the circumferential direction of the base plate, the middle of each clamping assembly is provided with a top block, and the upper side of each top block is fixedly connected with a pull rod through a connecting rod; the pull rods are located in the sliding grooves in the corresponding sides, driving rods are fixedly connected to the upper ends of the pull rods, a rotating disc is rotationally connected to the upper end of the top disc, and a plurality of inclined driving grooves corresponding to the clamping assemblies one to one are formed in the rotating disc. According to the diaphragm coating device, a plurality of diaphragms can be clamped and fixed by arranging the base plate, the top plate, the sleeve and the clamping assembly, and meanwhile, a plurality of devices can be fixed on the same hanging rod by utilizing the sleeve rod, so that uniform coating is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of aperture coatings, in particular to an aperture coating fixing device for a lens. Background Art

[0002] The aperture refers to an entity that limits the light beam in an optical system. Its functions can be divided into two aspects: limiting the light beam or limiting the size of the field of view (imaging range). The aperture that limits the light beam the most in the optical system is called the aperture aperture, and the aperture that limits the field of view (size) the most is called the field aperture. The aperture needs to be coated on its surface during the production process, which can be used to control the transmission, reflection and absorption properties of light. Due to the small size of the aperture, it needs to be fixed with a fixing device during coating. In practical use, the existing fixing devices require workers to break the fixing devices apart one by one and then fix the aperture on it with elastic force. It is inconvenient to operate and it is not convenient to remove it after the coating is completed. The fixing devices cannot be connected, and thus cannot be uniformly coated, which needs to be solved urgently. Utility Model Content

[0003] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the utility model is to provide a lens diaphragm coating fixing device, which effectively solves the problem of inconvenient loading and unloading of the diaphragm and uniform coating during coating.

[0004] The technical solution is as follows: the utility model includes a chassis, a top plate is fixedly connected to the upper end of the chassis, a sleeve is fixedly connected to the middle part of the top plate, a plurality of clamping components evenly distributed along its circumferential direction are provided on the upper side of the chassis, a top block is provided in the middle part of the clamping component, a pull rod is fixedly connected to the upper side of the top block via a connecting rod, a plurality of slide grooves corresponding to the clamping components are opened on the upper end of the top plate, the pull rod is located in the slide groove on the corresponding side, a driving rod is fixedly connected to the upper end of the pull rod, a rotating disk is rotatably connected to the upper end of the top plate, a plurality of driving grooves corresponding to the clamping components and inclined are opened on the rotating disk, the driving rod is located in the driving groove on the corresponding side, a rotating tube sleeved with the sleeve is fixedly connected to the middle part of the upper end of the rotating disk, and a locking assembly is provided on the front side of the rotating tube.

[0005] The clamping assembly includes two clamping plates facing each other up and down, a clearance groove is provided on one side of the upper clamping plate, a connecting rod is located in the clearance groove, the opposite end faces of the two clamping plates are inclined surfaces, the upper and lower sides of the top block can contact the inclined surfaces on their corresponding sides, a card slot is provided at one end of the clamping plate, and an aperture is provided between the two clamping plates.

[0006] The front side of the sleeve is provided with a plurality of ratchet grooves distributed along its circumference, and the locking assembly includes a locking block, the upper end of the locking block is ratchet-shaped, the locking block can engage with the locking groove, a sliding rod is slidably connected to the lower side of the locking block, the lower end of the sliding rod is fixedly connected to the rotating tube, a pressing block is fixedly connected to the front end of the locking block, and a return spring located between the pressing block and the rotating tube is fixedly connected to the lower end of the pressing block.

[0007] The upper end of the chassis is provided with a plurality of fixing grooves evenly distributed along the circumferential direction thereof and corresponding to the clamping components one by one, and the clamping components are located in the fixing grooves on the corresponding sides thereof.

[0008] The lower end of the chassis is provided with screw holes corresponding to the fixing grooves one by one, and bolts are threadedly connected in the screw holes, and the bolts are threadedly connected to the two clamping plates in the corresponding side fixing grooves.

[0009] A positioning tube is fixedly connected to the upper side of the sleeve, and a screw is connected to the inner thread of the positioning tube.

[0010] The utility model can clamp and fix multiple diaphragms by arranging a bottom plate, a top plate, a sleeve and a clamping assembly, and can use a sleeve rod to fix multiple devices on the same suspension rod, which is convenient for unified coating. The top block, connecting rod, pull rod, slide groove, drive rod, rotating disk and drive groove are arranged, and the opening and closing angle of the clamping assembly can be adjusted and fixed by rotating the rotating disk to drive the top block, which is convenient for the installation and clamping of the diaphragms. At the same time, the fixation of all diaphragms can be uniformly released, which is convenient for disassembly of the diaphragms after coating is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is the main axonometric drawing of the utility model.

[0012] Figure 2 It is an axonometric drawing of the chassis in the utility model.

[0013] Figure 3 It is an axonometric drawing of the top plate in the utility model.

[0014] Figure 4 It is an axonometric view of the clamping assembly in the utility model.

[0015] Figure 5 It is an axonometric diagram of the rotating disk in the utility model.

[0016] Figure 6 This utility model Figure 3 A is an enlarged view of the middle image.

[0017] In the figure: 1. chassis; 2. top plate; 3. sleeve; 4. clamping assembly; 5. top block; 6. pull rod; 7. slide groove; 8. drive rod; 9. rotating disk; 10. drive groove; 11. rotating tube; 12. locking assembly; 13. clamping plate; 14. clearance groove; 15. card groove; 16. aperture; 17. ratchet groove; 18. locking block; 19. slide rod; 20. pressing block; 21. reset spring; 22. fixing groove; 23. screw hole; 24. bolt; 25. screw. DETAILED DESCRIPTION

[0018] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

[0019] Depend on Figures 1 to 6 It is given, including a chassis 1, a top plate 2 is fixedly connected to the upper end of the chassis 1, a sleeve 3 is fixedly connected to the middle part of the top plate 2, a plurality of clamping components 4 uniformly distributed along its circumferential direction are arranged on the upper side of the chassis 1, a top block 5 is arranged in the middle part of the clamping component 4, a pull rod 6 is fixedly connected to the upper side of the top block 5 via a connecting rod, a plurality of slide grooves 7 corresponding to the clamping components 4 are opened on the upper end of the top plate 2, the pull rod 6 is located in the slide groove 7 on its corresponding side, a driving rod 8 is fixedly connected to the upper end of the pull rod 6, a rotating disk 9 is rotatably connected to the upper end of the top plate 2, a plurality of inclined driving grooves 10 corresponding to the clamping components 4 are opened on the rotating disk 9, the driving rod 8 is located in the driving groove 10 on its corresponding side, a rotating tube 11 sleeved with the sleeve 3 is fixedly connected to the middle part of the upper end of the rotating disk 9, and a locking assembly 12 is provided on the front side of the rotating tube 11.

[0020] like Figures 1 to 6 As shown, the bottom plate 1, the top plate 2, the sleeve 3 and the clamping assembly 4 are provided, and the bottom plate 1 and the top plate 2 can be used to connect and fix multiple clamping assemblies 4, and then the diaphragms 16 can be fixed by the clamping assembly 4, so that multiple diaphragms 16 can be uniformly coated after being fixed. At the same time, the sleeve 3 can be used to fix multiple fixing devices on the same hanging rod for uniform coating. After the coating needs to be replaced, the fixing device can be disassembled to disassemble and install the diaphragm 16 separately, which is convenient for operation. The top block 5, the connecting rod, the pull rod 6, the slide groove 7, the driving rod 8, the rotating disk 9 and the driving groove 10 can be rotated by rotating the rotating disk 9. The driving groove 10 and the driving rod 8 drive the pull rod 6 to move in the slide groove 7 toward the center of the rotating disk 9, and then pull the top block 5 to open the clamping assembly 4 from the middle to a certain angle, so that the diaphragm 16 can be placed in the clamping assembly 4 for clamping. There is no need to manually open the clamping assemblies 4 one by one to place the diaphragm 16, which is convenient for fixing the diaphragm 16. The connecting rod and the pull rod 6 are fixedly connected with screws for easy disassembly. The rotating tube 11 and the locking assembly 12 are provided to facilitate the use of the rotating tube 11 to rotate the rotating disk 9. At the same time, the locking assembly 12 can fix the position of the rotating tube 11 to prevent it from swinging at will, thereby achieving the purpose of fixing the top block 5.

[0021] The clamping assembly 4 includes two clamping plates 13 opposite to each other up and down, a clearance groove 14 is opened on the upper clamping side, the connecting rod is located in the clearance groove 14, the opposite end faces of the two clamping plates 13 are inclined surfaces, the upper and lower sides of the top block 5 can contact the inclined surfaces on their corresponding sides, a card slot 15 is opened at one end of the clamping plate 13, and an aperture 16 is provided between the two clamping plates 13.

[0022] like Figures 2 to 6As shown, two clamping plates 13 are symmetrically arranged to clamp and fix the diaphragm 16. At the same time, the clamping plates 13 have a certain elasticity and can be deformed within a certain range, thereby enhancing the clamping effect of the diaphragm 16 and improving its service life. The inclined surface is arranged to drive the opening and closing of the clamping assembly 4 through the movement of the top block 5, which is convenient for installing and clamping the diaphragm 16. The arrangement is convenient for increasing the contact points between the clamping plates 13 and the diaphragm 16, thereby improving the clamping stability of the diaphragm 16 and preventing the diaphragm 16 from rotating freely in the clamping assembly 4.

[0023] The front side of the sleeve 3 is provided with a plurality of ratchet grooves 17 distributed along its circumference, and the locking assembly 12 includes a locking block 18, the upper end of the locking block 18 is ratchet-shaped, and the locking block 18 can engage with the locking groove, and a slide rod 19 is slidably connected to the lower side of the locking block 18, and the lower end of the slide rod 19 is fixedly connected to the rotating tube 11, and a pressing block 20 is fixedly connected to the front end of the locking block 18, and a return spring 21 located between the pressing block 20 and the rotating tube 11 is fixedly connected to the lower end of the pressing block 20.

[0024] like Figures 3 to 6 As shown, the ratchet groove 17, the locking block 18, the slide bar 19, the pressing block 20 and the return spring 21 are provided. The ratchet groove 17 and the locking block 18 can be used to fix the position of the rotating tube 11, so as to facilitate the fixing of the opening and closing angle of the clamping assembly 4. The slide bar 19 can ensure that the locking block 18 will not be skewed during the lifting process. The pressing block 20 and the return spring 21 can use the pressing block 20 to release the engagement between the locking block 18 and the ratchet gear, so as to achieve the purpose of unlocking. The return spring 21 can ensure that the locking block 18 is always in engagement with the ratchet groove 17 in the absence of external force.

[0025] The upper end of the chassis 1 is provided with a plurality of fixing grooves 22 evenly distributed along the circumference thereof and corresponding to the clamping components 4 one by one, and the clamping components 4 are located in the fixing grooves 22 on the corresponding sides thereof.

[0026] like Figure 2 As shown, the fixing groove 22 is provided to facilitate the clamping assembly 4 to be placed in the fixing groove 22 for fixing. At the same time, when the clamping plate 13 of the clamping assembly 4 is elastically fatigued and cannot be used any more, the clamping assembly 4 can be replaced.

[0027] The bottom end of the chassis 1 is provided with screw holes 23 corresponding to the fixing grooves 22 , and the screw holes 23 are threadedly connected with bolts 24 , which are threadedly connected with the two clamping plates 13 in the corresponding side fixing grooves.

[0028] like Figure 2 and Figure 4 As shown, the screw holes 23 and the bolts 24 are provided to fix the clamping assembly 4 in the fixing grooves 22 on the corresponding sides thereof.

[0029] A positioning tube is fixedly connected to the upper side of the sleeve 3, and a screw 25 is connected to the inner thread of the positioning tube.

[0030] like Figures 1 to 3 As shown, the positioning tube and the screw 25 are provided to facilitate fixing the position of the fixing device by means of the screw 25 when the fixing device is installed on the hanging rod.

[0031] When the utility model is in use, a worker can rotate the rotating tube 11, and the rotating tube 11 rotates to drive the locking block 18 to rotate. The locking block 18 is continuously inserted into the ratchet groove 17 under the action of the reset spring 21. At the same time, the rotating tube 11 drives the rotating disk 9 to rotate. The rotating disk 9 drives the pull rod 6 to approach the center of the rotating disk 9 through the action of the driving groove 10 and the driving rod 8, and the inclined surfaces of the two clamping plates 13 of the clamping assembly 4 are released by pulling the top block 5. The two clamping plates 13 begin to deform, and the opening and closing angle of the clamping assembly 4 becomes larger. When it becomes larger to a suitable position, the diaphragm 16 is placed between the clamping assemblies 4 and is again stretched to a certain angle and then clamped by the clamping plates 13;

[0032] After all the diaphragms 16 on the fixing device are fixed, the pressing block 20 is pressed down, and the pressing block 20 drives the locking block 18 to disengage from the ratchet groove 17, the reset spring 21 contracts, and the locking block 18 moves downward on the slide bar 19. After the limit is released, the rotating tube 11 is rotated in the opposite direction, and the rotating tube 11 drives the top block 5 to return to the original position through the rotating disk 9, thereby improving the clamping effect of the diaphragm 16 and preventing the diaphragm 16 from falling off. Then, the multiple fixing devices can be put on the suspension rod as a whole by using the sleeve 3, and then the position of the fixing devices can be fixed by the screw 25 to coat the diaphragm 16.

[0033] After the coating is completed, the fixing device is removed from the hanging rod by using the screw 25, and then the diaphragm 16 can be removed and replaced by rotating the rotating tube 11 and using the top block 5 to increase the opening and closing angle of the clamping assembly 4 to a value exceeding the diameter of the diaphragm 16;

[0034] When the clamping plate 13 suffers from metal fatigue due to excessive deformation, the bolt 24 can be unscrewed, and the screw 25 between the connecting rod and the pull rod 6 can be unscrewed at the same time, so that the clamping assembly 4 can be replaced to increase its service life.

[0035] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A lens diaphragm (16) coating fixing device, comprising a base plate (1), characterized in that: The upper end of the bottom plate (1) is fixedly connected to a top plate (2), the middle of the top plate (2) is fixedly connected to a sleeve (3), the upper side of the bottom plate (1) is provided with a plurality of clamping components (4) evenly distributed along its circumferential direction, the middle of the clamping component (4) is provided with a top block (5), the upper side of the top block (5) is fixedly connected to a pull rod (6) via a connecting rod, the upper end of the top plate (2) is provided with a plurality of slide grooves (7) corresponding to the clamping components (4), and the pull rod (6) is located in the slide groove (7) on the corresponding side thereof. ), the upper end of the pull rod (6) is fixedly connected to a driving rod (8), the upper end of the top plate (2) is rotatably connected to a rotating plate (9), the rotating plate (9) is provided with a plurality of driving grooves (10) which correspond one to one with the clamping components (4) and are inclined, the driving rod (8) is located in the driving groove (10) on the corresponding side thereof, the middle part of the upper end of the rotating plate (9) is fixedly connected to a rotating tube (11) which is sleeved with the sleeve (3), and a locking component (12) is provided on the front side of the rotating tube (11).

2. A lens diaphragm (16) coating fixing device according to claim 1, characterized in that: The clamping assembly (4) comprises two clamping plates (13) facing each other up and down, a clearance groove (14) is provided on one clamping side of the upper side, a connecting rod is located in the clearance groove (14), the opposite end surfaces of the two clamping plates (13) are inclined surfaces, the upper and lower sides of the top block (5) can contact the inclined surfaces on the corresponding sides thereof, a clamping groove (15) is provided on one end of the clamping plate (13), and an aperture (16) is provided between the two clamping plates (13).

3. A lens diaphragm (16) coating fixing device according to claim 1, characterized in that: The front side of the sleeve (3) is provided with a plurality of ratchet grooves (17) distributed along its circumference. The locking assembly (12) comprises a locking block (18). The upper end of the locking block (18) is ratchet-shaped. The locking block (18) can mesh with the locking groove. The lower side of the locking block (18) is slidably connected to a slide bar (19). The lower end of the slide bar (19) is fixedly connected to the rotating tube (11). The front end of the locking block (18) is fixedly connected to a pressing block (20). The lower end of the pressing block (20) is fixedly connected to a return spring (21) located between the pressing block (20) and the rotating tube (11).

4. A lens diaphragm (16) coating fixing device according to claim 1, characterized in that: The upper end of the chassis (1) is provided with a plurality of fixing grooves (22) evenly distributed along its circumferential direction and corresponding one to one with the clamping assemblies (4), and the clamping assemblies (4) are located in the fixing grooves (22) on the corresponding sides thereof.

5. A lens diaphragm (16) coating fixing device according to claim 1, characterized in that: The bottom end of the chassis (1) is provided with screw holes (23) corresponding to the fixing grooves (22) one by one, the screw holes (23) are internally threadedly connected with bolts (24), and the bolts (24) are threadedly connected to the two clamping plates (13) in the corresponding side fixing grooves.

6. A lens diaphragm (16) coating fixing device according to claim 1, characterized in that: A positioning tube is fixedly connected to the upper side of the sleeve (3), and a screw (25) is connected to the inner thread of the positioning tube.

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