Lens polishing equipment for medium-wave infrared continuous zoom lens production

Abstract

The utility model belongs to the field of polishing equipment, and particularly relates to lens polishing equipment for medium-wave infrared continuous zoom lens production, which comprises a base, a frame is fixedly connected to the upper end of the base, a threaded pipe is fixedly connected to the inside of the frame, a screw is connected to the inside of the threaded pipe through a thread, and the threaded pipe is fixedly connected with the base. A movable plate is mounted at the lower end of the screw rod through a bearing, a supporting frame is slidably connected into the movable plate, and a clamping mechanism is arranged on the supporting frame. According to the lens polishing device, the frame, the screw rod, the supporting frame and other structures are additionally arranged on the base, the supporting frame can be driven to move downwards through threaded fit between the screw rod and the threaded pipe in the using process, and when a lens below the supporting frame makes contact with a polishing disc, a first spring can be extruded; and then the polishing pressure borne by the lens can be adjusted according to the extruded length of the first spring, and therefore the lens can be prevented from being damaged during polishing.

Description

Technical Field

[0001] The utility model relates to the technical field of polishing equipment, in particular to a lens polishing equipment for producing a medium-wave infrared continuous zoom lens. Background Art

[0002] According to the patent application publication number: CN107193116A, a medium-wave infrared continuous zoom lens with a large zoom ratio is proposed, which includes a lens barrel and an optical system arranged in the lens barrel. The optical system includes a front fixed group A with positive focal power, a zoom group B with negative focal power, a compensation group C with positive focal power, a rear fixed group D with negative focal power, and a secondary imaging group E with positive focal power, which are arranged in sequence along the incident direction of light from left to right. The front fixed group is a positive meniscus lens A, the zoom group is a double concave negative lens B, and the compensation group is a double convex lens C. The rear fixed group is a negative meniscus lens D, and the secondary imaging group includes a biconvex positive lens E1, a biconcave negative lens E2, and a biconvex positive lens E3 which are arranged in sequence. The structural design of the present invention is simple, compact, and reasonable. The lens has the advantages of large zoom ratio, high magnification, simple and compact structure, high imaging clarity, low processing cost, etc. It can realize electric continuous zoom, electric focus adjustment, real-time feedback of focal length, and real-time output of image. The lens is formed by combining multiple lenses, and the lens needs to be polished by polishing equipment during the production process.

[0003] However, the polishing equipment in the prior art is not convenient for adjusting the polishing force of the lens during use, and the lens is easily damaged due to the high polishing force when the lens is thin, and the lens is not convenient for clamping during the polishing process. Therefore, there is a need to improve the prior art. Utility Model Content

[0004] The utility model aims to provide a lens polishing device for producing a medium-wave infrared continuous zoom lens, which solves the problems that the polishing force is inconvenient to adjust and the lens is inconvenient to clamp.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lens polishing device for the production of medium-wave infrared continuous zoom lenses, comprising a base, the upper end of the base is fixedly connected to a frame, the interior of the frame is fixedly connected to a threaded tube, the interior of the threaded tube is threadedly connected to a screw, the lower end of the screw is provided with a movable plate via a bearing, the interior of the movable plate is slidably connected to a support frame, the support frame is provided with a clamping mechanism, a rotating disk is installed inside the base via a bearing, a motor is fixedly installed at the lower end of the base, a polishing disk is bonded to the interior of the rotating disk, and a spring is provided on the outside of the connecting rod of the support frame.

[0006] Preferably, the upper end of the output shaft of the motor is fixedly connected to the rotating disk, and the upper end of the screw is fixedly connected to a handwheel, and the handwheel can drive the screw to rotate.

[0007] Preferably, one end of the spring one is fixedly connected to the support frame, and the other end of the spring one is fixedly connected to the movable plate, and the spring one can support the support frame through elastic force.

[0008] Preferably, two symmetrically distributed guide rods are fixedly connected to the upper end of the movable plate, and the guide rods are slidably connected to the frame. The guide rods can guide the movement of the movable plate.

[0009] Preferably, the clamping mechanism includes a clamping cover, the lower end of the support frame is fixedly connected to the clamping cover, the outer side of the clamping cover is slidably connected to the clamping frame, the inside of the clamping cover is fixedly connected to a sliding rod, the outer side of the sliding rod is provided with a spring 2, the inside of the clamping cover is slidably connected to a clamping seat, the inside of the clamping cover is in contact with a lens, the clamping frame is slidably connected to the support frame, and the clamping seat can clamp the lens.

[0010] Preferably, one end of the second spring is fixedly connected to the clamping frame, the other end of the second spring is fixedly connected to the clamping cover, the clamping seat is fixedly connected to the clamping frame, the clamping seat is in contact with the lens, and the second spring can support the clamping frame by elastic force.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The utility model adds structures such as a frame, a screw and a support frame on the base. During use, the support frame can be driven to move downward by the threaded cooperation between the screw and the threaded tube. When the lens below the support frame contacts the polishing disk, the spring 1 can be squeezed, and then the polishing pressure on the lens can be adjusted according to the squeezed length of the spring 1, thereby avoiding damage to the lens during polishing.

[0013] 2. The utility model adds a clamping frame, a clamping seat, a guide rod and other structures to the clamping cover. During use, the elastic force of the second spring can drive the clamping frame and the clamping seat to squeeze and clamp the lens, and squeeze the lens into the groove of the clamping seat, so that the lens can be clamped more stably while being convenient to clamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0015] Figure 2 For the utility model Figure 1 A three-dimensional cross-sectional view of

[0016] Figure 3 For the utility model Figure 1 A magnified view of the structure of part A;

[0017] Figure 4 For the utility model Figure 2 An enlarged cross-sectional view of the clamping mechanism from the front.

[0018] In the figure: 1. base; 2. frame; 3. threaded tube; 4. screw; 5. moving plate; 6. support frame; 7. clamping mechanism; 8. rotating disk; 9. motor; 10. polishing disk; 11. spring 1; 12. guide rod; 13. hand wheel; 71. clamping cover; 72. clamping frame; 73. slide rod; 74. spring 2; 75. clamping seat; 76. lens. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1 , Figure 2 , Figure 3 A lens polishing device for producing medium-wave infrared continuous zoom lens comprises a base 1, a frame 2 is fixedly connected to the upper end of the base 1, a threaded tube 3 is fixedly connected to the inside of the frame 2, a screw 4 is threadedly connected to the inside of the threaded tube 3, a moving plate 5 is installed at the lower end of the screw 4 through a bearing, a support frame 6 is slidably connected to the inside of the moving plate 5, a clamping mechanism 7 is arranged on the support frame 6, a rotating disk 8 is installed inside the base 1 through a bearing, a motor 9 is fixedly installed at the lower end of the base 1, a polishing disk 10 is bonded to the inside of the rotating disk 8, and a spring 11 is arranged on the outside of the connecting rod of the support frame 6.

[0021] See also Figure 1 , Figure 2 , Figure 3 The upper end of the output shaft of the motor 9 is fixedly connected to the rotating disk 8, the upper end of the screw 4 is fixedly connected to a handwheel 13, the handwheel 13 can drive the screw 4 to rotate, one end of a spring 11 is fixedly connected to the support frame 6, the other end of the spring 11 is fixedly connected to the movable plate 5, the spring 11 can support the support frame 6 by elastic force, the upper end of the movable plate 5 is fixedly connected to two symmetrically distributed guide rods 12, the guide rods 12 are slidably connected to the frame 2, and the guide rods 12 can guide the movement of the movable plate 5.

[0022] See also Figure 2, Figure 4 The clamping mechanism 7 includes a clamping cover 71, the lower end of the support frame 6 is fixedly connected to the clamping cover 71, the outer side of the clamping cover 71 is slidably connected to the clamping frame 72, the inside of the clamping cover 71 is fixedly connected to the sliding rod 73, the outer side of the sliding rod 73 is provided with a spring 2 74, the inside of the clamping cover 71 is slidably connected to the clamping seat 75, the inside of the clamping cover 71 is in contact with the lens 76, the clamping frame 72 is slidably connected to the support frame 6, the clamping seat 75 can clamp the lens 76, one end of the spring 2 74 is fixedly connected to the clamping frame 72, the other end of the spring 2 74 is fixedly connected to the clamping cover 71, the clamping seat 75 is fixedly connected to the clamping frame 72, the clamping seat 75 is in contact with the lens 76, and the spring 2 74 can support the clamping frame 72 through elastic force.

[0023] The specific implementation process of the utility model is as follows: when in use, the clamping frame 72 is pulled, the clamping frame 72 compresses the spring 2 74, the clamping frame 72 drives the clamping seat 75 to move, and then the lens 76 is placed inside the clamping cover 71, and the clamping frame 72 is released at the same time, the spring 2 74 is reset, and the spring 2 74 can drive the clamping seat 75 to squeeze the outer side of the lens 76 through the elastic force, so that the lens 76 can be conveniently clamped;

[0024] Then start the motor 9, which drives the rotating disk 8 and the polishing disk 10 to rotate. During the rotation, turn the hand wheel 13, which drives the screw 4 to rotate. During the rotation, the screw 4 can drive the movable plate 5 to move through the threaded cooperation with the threaded tube 3. During the movement, the movable plate 5 can drive the lens 76 at the lower end of the clamping cover 71 to move downward. When the lens 76 contacts the polishing disk 10, turn the hand wheel 13 appropriately to compress the spring 11. After being compressed, the spring 11 generates elasticity, and the lens 76 can be pushed against the polishing disk 10 by the elastic force, thereby adjusting the polishing force.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lens polishing device for producing a medium-wave infrared continuous zoom lens, comprising a base (1), characterized in that: The upper end of the base (1) is fixedly connected to a frame (2), the interior of the frame (2) is fixedly connected to a threaded tube (3), the interior of the threaded tube (3) is threadedly connected to a screw rod (4), the lower end of the screw rod (4) is mounted with a movable plate (5) via a bearing, the interior of the movable plate (5) is slidably connected to a support frame (6), a clamping mechanism (7) is provided on the support frame (6), a rotating disk (8) is mounted inside the base (1) via a bearing, a motor (9) is fixedly mounted on the lower end of the base (1), a polishing disk (10) is bonded inside the rotating disk (8), and a spring (11) is provided on the outer side of the connecting rod of the support frame (6).

2. The lens polishing equipment for producing a medium-wave infrared continuous zoom lens according to claim 1, characterized in that: The upper end of the output shaft of the motor (9) is fixedly connected to the rotating disk (8), and the upper end of the screw rod (4) is fixedly connected to a hand wheel (13).

3. The lens polishing equipment for producing a medium-wave infrared continuous zoom lens according to claim 1, characterized in that: One end of the spring one (11) is fixedly connected to the support frame (6), and the other end of the spring one (11) is fixedly connected to the movable plate (5).

4. The lens polishing equipment for producing a medium-wave infrared continuous zoom lens according to claim 1, characterized in that: The upper end of the movable plate (5) is fixedly connected to two symmetrically distributed guide rods (12), and the guide rods (12) are slidably connected to the frame (2).

5. The lens polishing equipment for producing a medium-wave infrared continuous zoom lens according to claim 1, characterized in that: The clamping mechanism (7) comprises a clamping cover (71), the lower end of the support frame (6) is fixedly connected to the clamping cover (71), the outer side of the clamping cover (71) is slidably connected to a clamping frame (72), the interior of the clamping cover (71) is fixedly connected to a sliding rod (73), the outer side of the sliding rod (73) is provided with a second spring (74), the interior of the clamping cover (71) is slidably connected to a clamping seat (75), the interior of the clamping cover (71) is in contact with a lens (76), and the clamping frame (72) is slidably connected to the support frame (6).

6. The lens polishing equipment for producing a medium-wave infrared continuous zoom lens according to claim 5, characterized in that: One end of the second spring (74) is fixedly connected to the clamping frame (72), the other end of the second spring (74) is fixedly connected to the clamping cover (71), the clamping seat (75) is fixedly connected to the clamping frame (72), and the clamping seat (75) is in contact with the lens (76).

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