Translation fine adjustment device of optical lens cone

Abstract

The utility model relates to the technical field of optical lens cones, in particular to a translation fine adjustment device of an optical lens cone, which comprises a fixed lens cone, an optical lens cone group is arranged at the top of the fixed lens cone, and a translation fine adjustment mechanism is arranged on the outer wall of the fixed lens cone and at the position of the optical lens cone group. The top of the fixed lens cone is fixedly connected with a fixed flange below the translation fine adjustment mechanism. The translation fine adjustment mechanism comprises a fine adjustment screw in threaded connection with the interior of the fixed flange, and the position of the optical lens cone group is adjusted by utilizing the translation fine adjustment mechanism in the translation fine adjustment device of the optical lens cone. The problems that after an existing photoetching lens works for a period of time, the uppermost three lens cone sets need to be disassembled, optical lenses in the lens cones need to be cleaned, after cleaning is completed, due to the fact that the deviation requirement of the central axes of the optical lenses in the lens is high, fine adjustment needs to be conducted on the lens cone sets in the horizontal X direction and the horizontal Y direction in the installation process, and the optical lenses cannot be cleaned are solved. And the fine adjustment operation is inconvenient.

Description

Technical Field

[0001] The utility model relates to the technical field of optical lens barrels, in particular to a translation fine-tuning device for an optical lens barrel. Background Art

[0002] A photolithography lens is a device used for imaging large target surfaces, but existing photolithography lenses still have shortcomings. Specifically, after working for a period of time, the three top lens barrels of the existing photolithography lens need to be disassembled and the optical lenses inside the barrels need to be cleaned. After cleaning, since the deviation requirements of the central axis of the optical lens inside the lens are very high, the lens barrel group needs to be fine-tuned in the horizontal X and Y directions during installation, which makes the fine-tuning operation relatively inconvenient.

[0003] Therefore, a translation fine-tuning device for an optical lens barrel is needed to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the present invention is to provide a translation fine-tuning device for an optical lens barrel to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A translation fine-tuning device for an optical lens barrel comprises a fixed lens barrel, an optical lens barrel assembly is mounted on the top of the fixed lens barrel, a translation fine-tuning mechanism is provided on the outer wall of the fixed lens barrel at the position of the optical lens barrel assembly, and a fixing flange is fixedly connected to the top of the fixed lens barrel and below the translation fine-tuning mechanism;

[0007] The translation fine-tuning mechanism includes a fine-tuning screw threadedly connected in a fixed flange, an outer wall of the fine-tuning screw movably connected to a compression spring above the fixed flange, an outer wall of the fine-tuning screw slidably connected to an adjustment eccentric wheel above the compression spring, a protruding strip fixedly connected to the top of the adjustment eccentric wheel, an adjusting nut threadedly connected to the outer wall of the fine-tuning screw above the adjustment eccentric wheel, and a groove provided on the outer wall of the adjusting nut at the corresponding position of the protruding strip.

[0008] As a preferred solution of the present invention, the fixing flange is made of aluminum alloy, and four groups of translation fine-tuning mechanisms are provided, and the four groups of translation fine-tuning mechanisms are respectively provided on the front, back and both sides of the optical lens barrel group.

[0009] As a preferred solution of the present invention, the adjusting eccentric wheel is made of aluminum alloy, and the fine-tuning screw sequentially passes through the fixing flange, the compression spring, the adjusting eccentric wheel and extends to the outside of the adjusting nut.

[0010] As a preferred solution of the present invention, the shape of the groove is adapted to the shape of the protruding strip, and the connection between the compression spring and the fixing flange is a movable connection.

[0011] As a preferred solution of the present invention, the inner and outer circles of the adjusting eccentric wheel are eccentric, and the connection between the adjusting eccentric wheel and the optical lens barrel assembly, and the protruding strip and the groove are all sliding connections.

[0012] As a preferred solution of the present invention, two groups of protruding strips are provided, and the protruding strips pass through the adjusting nut and extend into the groove.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. In the utility model, a translation fine-tuning device for an optical lens barrel is designed. The translation fine-tuning mechanism in the device is used to adjust the position of the optical lens barrel group. The optical lens barrel group is placed on the fixed flange at the top of the fixed lens barrel. The fine-tuning screw is then screwed into the screw hole in the fixed flange at the top of the fixed lens barrel and tightened. The compression spring is sleeved on the fine-tuning screw. The adjusting eccentric is then sleeved on the fine-tuning screw. The adjusting eccentric presses the compression spring. Finally, the adjusting nut is screwed onto the screw. The position of the adjusting eccentric is adjusted so that the protruding strip on the top of the adjusting eccentric is aligned with the groove of the adjusting nut. The compression spring pushes the adjusting eccentric to move upward. The protruding strip on the top of the adjusting eccentric is adjusted to The cam is then inserted into the groove of the adjusting nut, and the operation is repeated to install the four sets of translation fine-tuning mechanisms on the fixed flange. The adjusting nut is rotated, and the adjusting nut drives the adjusting eccentric wheel to rotate through the protruding strip. The rotating adjusting eccentric wheel pushes the optical lens tube group to perform a slight translation in the horizontal X and Y directions, thereby adjusting the position of the optical lens tube group. This solves the problem that the existing photolithography lens needs to disassemble the top three lens tube groups and clean the optical lenses inside the lens tube after working for a period of time. After cleaning, due to the high deviation requirement of the central axis of the optical lens inside the lens, the lens tube group needs to be fine-tuned in the horizontal X and Y directions during installation, and the fine-tuning operation is relatively inconvenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the optical lens barrel assembly of the utility model;

[0017] Figure 3 It is a schematic diagram of the three-dimensional structure of the fine-tuning screw of the utility model.

[0018] In the figure: 1. Fixed lens barrel; 2. Optical lens barrel assembly; 3. Translation fine-tuning mechanism; 4. Fixed flange; 301. Fine-tuning screw; 302. Compression spring; 303. Adjusting eccentric wheel; 304. Protruding strip; 305. Adjusting nut; 306. Groove. DETAILED DESCRIPTION

[0019] The following will combine 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, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0021] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may also be a central element. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are for the purpose of describing specific embodiments only and are not intended to limit this invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0023] For examples, see Figure 1-3 , the utility model provides a technical solution:

[0024] A translation fine-tuning device for an optical lens barrel comprises a fixed lens barrel 1, an optical lens barrel assembly 2 being mounted on the top of the fixed lens barrel 1, a translation fine-tuning mechanism 3 being provided on the outer wall of the fixed lens barrel 1 at the position of the optical lens barrel assembly 2, and a fixing flange 4 being fixedly connected to the top of the fixed lens barrel 1 and below the translation fine-tuning mechanism 3;

[0025] The fixing flange 4 is made of aluminum alloy, and four groups of translation fine-tuning mechanisms 3 are provided, and the four groups of translation fine-tuning mechanisms 3 are respectively provided on the front, back and both sides of the optical lens barrel group 2;

[0026] In this embodiment, reference Figure 2 and Figure 3 The translation fine-tuning mechanism 3 includes a fine-tuning screw 301 threadedly connected to the fixed flange 4, a compression spring 302 movably connected to the outer wall of the fine-tuning screw 301 and above the fixed flange 4, an adjusting eccentric 303 slidably connected to the outer wall of the fine-tuning screw 301 and above the compression spring 302, a protruding strip 304 fixedly connected to the top of the adjusting eccentric 303, an adjusting nut 305 threadedly connected to the outer wall of the fine-tuning screw 301 and above the adjusting eccentric 303, and a groove 306 is opened on the outer wall of the adjusting nut 305 at the position corresponding to the protruding strip 304;

[0027] The adjusting eccentric 303 is made of aluminum alloy, and the fine-tuning screw 301 sequentially passes through the fixing flange 4, the compression spring 302, the adjusting eccentric 303 and extends to the outside of the adjusting nut 305. The shape of the groove 306 is adapted to the shape of the protruding strip 304. The compression spring 302 is connected to the fixing flange 4 in a movable manner. The inner and outer circles of the adjusting eccentric 303 are eccentric. The connection mode of the adjusting eccentric 303 and the optical tube group 2, the protruding strip 304 and the groove 306 is a sliding connection. The protruding strip 304 is provided with two groups. The protruding strip 304 passes through the adjusting nut 305 and extends into the groove 306. The fine-tuning screw 301 is screwed into the screw hole in the fixing flange 4 at the top of the fixing tube 1 and tightened. The compression spring 302 is sleeved on the fine-tuning screw 301, and then the adjusting eccentric 303 is sleeved on the fine-tuning screw The adjusting screw 301 is mounted on the adjusting eccentric wheel 303, which presses the compression spring 302. Finally, the adjusting nut 305 is screwed into the fine-tuning screw 301. The position of the adjusting eccentric wheel 303 is adjusted so that the protruding strip 304 on the top of the adjusting eccentric wheel 303 is aligned with the groove 306 of the adjusting nut 305. The compression spring 302 pushes the adjusting eccentric wheel 303 upward, and the protruding strip 304 on the top of the adjusting eccentric wheel 303 is embedded in the groove 306 of the adjusting nut 305. The operation is repeated to install the four-group translation fine-tuning mechanism 3 on the fixed flange 4. The adjusting nut 305 is rotated. The adjusting nut 305 drives the adjusting eccentric wheel 303 to rotate through the protruding strip 304. The rotating adjusting eccentric wheel 303 pushes the optical lens tube group 2 to perform a slight translation in the horizontal X and Y directions, thereby adjusting the position of the optical lens tube group 2.

[0028] The working process of the utility model is as follows: when the translation fine-tuning device of the optical lens barrel designed by the present invention is in operation, the optical lens barrel group 2 is placed on the fixing flange 4 at the top of the fixed lens barrel 1, and then the fine-tuning screw 301 is screwed into the screw hole in the fixing flange 4 at the top of the fixed lens barrel 1 and tightened, the compression spring 302 is sleeved on the fine-tuning screw 301, and then the adjusting eccentric wheel 303 is sleeved on the fine-tuning screw 301, and the adjusting eccentric wheel 303 presses the compression spring 302, and finally the adjusting nut 305 is screwed into the fine-tuning screw 301, and the position of the adjusting eccentric wheel 303 is adjusted so that the adjusting eccentric wheel 303 The protruding strip 304 on the top is aligned with the groove 306 of the adjusting nut 305, and the compression spring 302 pushes the adjusting eccentric wheel 303 upward. The protruding strip 304 on the top of the adjusting eccentric wheel 303 is embedded in the groove 306 of the adjusting nut 305. Repeat the operation to install the four sets of translation fine-tuning mechanisms 3 on the fixed flange 4. The adjusting nut 305 is rotated, and the adjusting nut 305 drives the adjusting eccentric wheel 303 to rotate through the protruding strip 304. The rotating adjusting eccentric wheel 303 pushes the optical lens tube group 2 to perform a slight translation in the horizontal X and Y directions, thereby adjusting the position of the optical lens tube group 2.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A translation fine-tuning device for an optical lens barrel, comprising a fixed lens barrel (1), characterized in that: An optical lens barrel assembly (2) is installed on the top of the fixed lens barrel (1); a translation fine-tuning mechanism (3) is provided on the outer wall of the fixed lens barrel (1) and at the position of the optical lens barrel assembly (2); and a fixing flange (4) is fixedly connected to the top of the fixed lens barrel (1) and below the translation fine-tuning mechanism (3); The translation fine-tuning mechanism (3) comprises a fine-tuning screw (301) threadedly connected to a fixed flange (4); a compression spring (302) is movably connected to the outer wall of the fine-tuning screw (301) above the fixed flange (4); an adjusting eccentric wheel (303) is slidably connected to the outer wall of the fine-tuning screw (301) above the compression spring (302); a protruding strip (304) is fixedly connected to the top of the adjusting eccentric wheel (303); an adjusting nut (305) is threadedly connected to the outer wall of the fine-tuning screw (301) above the adjusting eccentric wheel (303); and a groove (306) is provided on the outer wall of the adjusting nut (305) at a position corresponding to the protruding strip (304).

2. The translation fine-tuning device for an optical lens barrel according to claim 1, characterized in that: The fixed flange (4) is made of aluminum alloy, and four groups of translation fine-tuning mechanisms (3) are provided, and the four groups of translation fine-tuning mechanisms (3) are respectively provided on the front, back and both sides of the optical lens barrel group (2).

3. The translation fine-tuning device for an optical lens barrel according to claim 1, characterized in that: The adjusting eccentric wheel (303) is made of aluminum alloy, and the fine-tuning screw (301) sequentially passes through the fixing flange (4), the compression spring (302), the adjusting eccentric wheel (303), and extends to the outside of the adjusting nut (305).

4. The translation fine-tuning device for an optical lens barrel according to claim 1, characterized in that: The shape of the groove (306) is adapted to the shape of the protruding strip (304), and the connection between the compression spring (302) and the fixing flange (4) is a movable connection.

5. The translation fine-tuning device for an optical lens barrel according to claim 1, characterized in that: The inner and outer circles of the adjusting eccentric wheel (303) are eccentric, and the connection between the adjusting eccentric wheel (303) and the optical lens barrel assembly (2), and the protruding strip (304) and the groove (306) is a sliding connection.

6. The translation fine-tuning device for an optical lens barrel according to claim 1, characterized in that: Two groups of the protruding strips (304) are provided, and the protruding strips (304) penetrate the adjusting nut (305) and extend into the groove (306).

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