High-precision eccentric adjustment tool for lens assembly

Abstract

The utility model discloses a high-precision eccentric adjusting tool for lens assembly, and relates to the technical field of lens assembly. Comprising a chassis detachably connected with an eccentricity tester, the center of the top surface of the chassis is fixedly connected with a base for placing a lens, and a plurality of adjusting assemblies are arranged in the circumferential direction of the base; the adjusting assembly comprises a U-shaped frame, a plurality of through holes are symmetrically formed in two opposite vertical rods of the U-shaped frame, an adjusting part used for conducting eccentric adjustment on the lens is arranged between the two opposite through holes, and the central axis of the adjusting part and the central axis of the base intersect and are perpendicular to each other. According to the utility model, after the base is installed on the eccentricity tester, the eccentricity tester monitors the displacement change of the position of the lens in real time, and the eccentricity of the lens can be effectively adjusted through the plurality of adjusting parts arranged on the plurality of U-shaped frames around the lens, so that the lens reaches the required index.

Description

TECHNICAL FIELD

[0001] The utility model relates to lens assembly technical field, in particular to a high accuracy eccentricity adjustment frock for lens assembly. BACKGROUND

[0002] In the optical manufacturing field, the lens as the key optical element, its assembly precision directly determines the imaging quality of optical system, in the lens assembly process, eccentricity is one of the important factors influencing the imaging quality, and the research and development of eccentricity adjustment frock is very important, the eccentricity debugging mainly adopts manual adjustment at present, and the manual adjustment process is greatly influenced by the experience and skill level of operating personnel, and the adjustment results of different personnel operation can lead to the difference, and moreover, the efficiency of manual adjustment is relatively low, and it is difficult to meet the production demand.

[0003] Therefore, a high-precision eccentricity adjustment frock for lens assembly is urgently needed, which is installed on the eccentricity tester, so that the eccentricity tester can monitor the displacement change of the lens position in real time, and the frock can be adjusted to meet the demand index of the lens. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a high-precision eccentricity adjustment frock for lens assembly to solve the problems of the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following scheme: the utility model provides a high-precision eccentricity adjustment frock for lens assembly, which comprises a bottom disc detachably connected with an eccentricity tester, a bottom seat for placing a lens is fixedly connected to the center of the top surface of the bottom disc, and a plurality of adjustment assemblies are arranged on the circumference of the bottom seat; the adjustment assembly comprises a U-shaped frame, a plurality of through holes are symmetrically formed in the two opposite vertical rods of the U-shaped frame, an adjustment part for eccentricity adjustment of the lens is arranged between the two opposite through holes, and the central axis of the adjustment part intersects and is perpendicular to the central axis of the bottom seat.

[0006] Preferably, a plurality of sliding grooves are formed in the bottom seat, and the sliding grooves are slidably connected with the U-shaped frame.

[0007] Preferably, a threaded hole is formed in the bottom of one end of the sliding groove close to the bottom seat, and a bolt is threadedly connected with the threaded hole.

[0008] Preferably, a U-shaped block is fixedly connected to the lower part of one side of the U-shaped frame facing the bottom seat, the bolt penetrates through the U-shaped block, and the U-shaped block is slidably connected with the sliding groove.

[0009] Preferably, the through hole is connected with a limiting hole, and a screw positioning pin is threadedly connected with the limiting hole.

[0010] Preferably, a threaded sleeve is mounted in the through hole, and the screw positioning pin is detachably connected with the threaded sleeve at the end extending into the through hole.

[0011] Preferably, the adjusting part comprises a movable column and a sleeve respectively arranged in the two opposite threaded sleeves, the movable column and the sleeve are threadedly connected with the threaded sleeves, a movable rod is slidably connected in the sleeve, one end of the movable rod extending out of the sleeve and towards the movable column is fixedly connected with a fixed disc, the fixed disc abuts against the movable column, one end of the movable rod extending out of the sleeve and away from the fixed disc is fixedly connected with a round rod, a positioning pin is mounted in the end of the round rod away from the movable rod, and the positioning pin is detachably connected with the lens.

[0012] Preferably, a spring is arranged between the fixed disc and the sleeve, and the spring is sleeved on the movable rod.

[0013] Preferably, the outer diameter of the fixed disc is larger than the inner diameter of the sleeve.

[0014] Preferably, one end of the sleeve towards the fixed disc is fixedly connected with a limiting ring, and the outer diameter of the limiting ring is larger than the inner diameter of the threaded sleeve.

[0015] The utility model discloses the following technical effects:

[0016] The utility model discloses a base is installed to eccentric tester after, makes the displacement change of real -time monitoring lens position of eccentric tester to can effectively through the adjustment of the eccentricity of the lens of the adjusting part of a plurality of U -shaped frames arranged around the lens, makes the lens reach the demand index.

[0017] The utility model discloses each component adopts common metal material and simple mechanical structure, not only low -cost manufacture, still can reduce equipment procurement cost and maintenance cost greatly. ACCURACY OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawing needed to be used in the embodiment, and obviously, the drawing in the following description is only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without paying creative labor.

[0019] Figure 1 It is the whole structure schematic diagram of the utility model;

[0020] Figure 2 It is the bottom disc structure schematic diagram of the utility model;

[0021] Figure 3The utility model discloses a U-shaped frame structure schematic diagram shows that the utility model discloses a adjusting assembly structure schematic diagram shows.

[0022] Figure 4 The utility model discloses a adjusting assembly structure schematic diagram shows.

[0023] Among them, 1, base pan;2, U-shaped frame;3, movable column;4, base;11, sliding slot;12, screw hole;13, U-shaped block;21, through -hole;22, limit hole;31, round rod;32, fixed disc;33, spring;34, sleeve;35, positioning needle;36, internal thread cylinder. Specific implementation

[0024] The technical scheme in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range of protection of the utility model.

[0025] In order to make the above purpose, feature and advantage of the utility model more apparent, easy to understand, the utility model is explained in further detail below with reference to the drawings and specific implementation.

[0026] Reference Figures 1-4 The utility model discloses a high accuracy eccentricity adjusting tool for lens assembly, including with the detachable connection of eccentric tester base pan 1, the top surface center fixed connection of base pan 1 has the base 4 for placing lens, and the circumference of base 4 is provided with a plurality of adjusting assemblies;Adjusting assembly includes U-shaped frame 2, and the two opposite vertical poles of U-shaped frame 2 are symmetrically provided with a plurality of through -holes 21, and the opposite two through -holes 21 are provided with the adjusting part for the eccentricity adjustment of lens, and the central axis of adjusting part intersects with the central axis of base 4 and is perpendicular to each other.

[0027] The utility model discloses a base pan 1 is installed to eccentric tester, makes the displacement change of real -time monitoring lens position by eccentric tester, and can effectively adjust the eccentricity of lens through a plurality of adjusting parts on a plurality of U-shaped frames 2 around lens, makes lens reach demand index.

[0028] The utility model discloses each component adopts common metal material and simple mechanical structure, not only low in manufacturing cost, but also can greatly reduce equipment procurement cost and maintenance cost.

[0029] Further optimization scheme, the base 4 is provided with a plurality of sliding slots 11, and the sliding slot 11 is slidably connected with the U-shaped frame 2. Through the sliding slot 11, the U-shaped frame 2 is moved along the sliding slot 11.

[0030] Further optimization scheme, the bottom of one end of the chute 11 close to the base 4 is provided with a threaded hole 12, the threaded hole 12 is screwed with a bolt.

[0031] Further optimization scheme, the lower part of one side of the U-shaped frame 2 close to the base 4 is fixedly connected with a U-shaped block 13, the bolt penetrates the U-shaped block 13, and the U-shaped block 13 is slidably connected with the chute 11.

[0032] By penetrating the bolt through the U-shaped block 13 and tightening it in the threaded hole 12, the U-shaped block 13 cannot move along the chute 11, and the U-shaped frame 2 is limited in the chute 11 by the U-shaped block 13.

[0033] By moving the U-shaped frame 2 along the chute 11, the distance between the U-shaped frame 2 and the base 4 can be adjusted to meet the different lens eccentricity adjustment requirements and adapt to lenses of various specifications.

[0034] Further optimization scheme, the through hole 21 is communicated with a limiting hole 22, and the limiting hole 22 is screwed with a screw positioning pin. By tightening the positioning pin, the positioning pin can extend into the through hole 21.

[0035] Further optimization scheme, the through hole 21 is provided with an internally threaded cylinder 36, and the end of the screw positioning pin extending into the through hole 21 is detachably connected with the internally threaded cylinder 36. The position of the internally threaded cylinder 36 extending into the through hole 21 can be adjusted by the positioning pin, and the internally threaded cylinder 36 is limited, so that the internally threaded cylinder 36 cannot move in the through hole 21.

[0036] Further optimization scheme, the adjusting part comprises a movable column 3 and a sleeve 34 arranged in two opposite internally threaded cylinders 36 respectively, the movable column 3 and the sleeve 34 are screwed with the internally threaded cylinder 36, the sleeve 34 is slidably connected with a movable rod, the end of the movable rod extending out of the sleeve 34 and facing the movable column 3 is fixedly connected with a fixed disc 32, the fixed disc 32 abuts against the movable column 3, the end of the movable rod extending out of the sleeve 34 and away from the fixed disc 32 is fixedly connected with a round rod 31, the round rod 31 is provided with a positioning needle 35 at the end away from the movable rod, and the positioning needle 35 is detachably connected with the lens.

[0037] The middle part of the movable column 3 and the end part of the sleeve 34 are only provided with threads, so that the movable column 3 and the internally threaded cylinder 36 can be effectively screwed with the internally threaded cylinder 36.

[0038] Further optimization scheme, a spring 33 is arranged between the fixed disc 32 and the sleeve 34, and the spring 33 is sleeved on the movable rod. The fixed disc 32 is always abutted against the movable column 3 by the spring 33.

[0039] Further optimization scheme, the outer diameter of the fixed disc 32 is greater than the inner diameter of the sleeve 34, and the inner diameter of the spring 33 is greater than the inner diameter of the sleeve 34, so that the spring 33 can effectively provide elasticity to the fixed disc 32, and the fixed disc 32 cannot enter the sleeve 34.

[0040] Further optimization scheme, the one end of the sleeve 34 is fixedly connected with a limiting ring towards the fixed disc 32, and the outer diameter of the limiting ring is greater than the inner diameter of the internally threaded cylinder 36. Through the limiting ring, the sleeve 34 can be effectively avoided from being screwed into the internally threaded cylinder 36.

[0041] Working process:

[0042] Tool preparation: check the components on the chassis 1, and install the chassis 1 on the eccentric tester.

[0043] Lens installation: according to the specifications of the lens to be assembled, select the appropriate fittings, and carefully place the lens on the base 4.

[0044] Initial positioning: use the positioning reference on the chassis 1 to align the lens assembly equipment and other related references, and preliminarily determine the position of the lens; at this time, the distance between the U-shaped frame 2 and the base 4 can be adjusted by loosening the bolts, and some rough position adjustment can be made to make the center position of the lens close to the theoretical assembly position, so as to reduce the amount of adjustment.

[0045] Eccentricity adjustment: use the eccentric tester to monitor the eccentricity of the lens in real time; according to the measurement results of the eccentric tester, the operator adjusts the position of the lens on the base 4 in the X and Y axis directions by operating the rotating positioning needle 35; each adjustment needs to be measured again by the eccentric tester until the eccentricity of the lens reaches the high-precision range required by the design; during the adjustment process, the principle of rough adjustment first and fine adjustment later needs to be followed to gradually achieve the ideal eccentric state.

[0046] Fixing and assembly: when the eccentricity adjustment of the lens is completed and confirmed to be correct, the lens with adjusted eccentricity is assembled with other optical components according to the normal lens assembly process, and the whole lens assembly work is completed.

[0047] The utility model can realize accurate adjustment of lens eccentricity, greatly improve the imaging resolution and clarity of the optical system, and meet the stringent requirements of high-end optical equipment for high-precision imaging.

[0048] In the description of the utility model, need understanding is, the term "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and so on indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawing, just for the convenience of describing the utility model, and not indicate or imply that the indicated device or element must have a particular orientation, construct and operate in a particular orientation, therefore can not be understood as limiting the utility model.

[0049] The above-described embodiments are only descriptions of the preferred modes of the utility model, and do not limit the scope of the utility model, and various deformations and improvements of the technical solutions of the utility model made by the ordinary skilled in the art without departing from the design spirit of the utility model should fall within the protection scope determined by the utility model claims.

Claims

1. A high-precision eccentricity adjustment tooling for lens assembly, characterized in that: The utility model provides a lens eccentricity adjusting device, including the detachable connection of eccentric tester with chassis (1), the top center of chassis (1) is fixedly connected with the base (4) for placing lens, a plurality of adjusting assemblies are arranged on the circumference of base (4), the adjusting assembly includes U-shaped frame (2), a plurality of through holes (21) are symmetrically opened on the two opposite vertical rods of U-shaped frame (2), the adjusting part for adjusting the eccentricity of lens is arranged between the opposite two through holes (21), the central axis of adjusting part intersects with the central axis of base (4) and is perpendicular to each other.

2. The high-precision eccentricity adjustment tooling for lens-facing assembly of claim 1, wherein: A plurality of sliding grooves (11) are formed in the base (4), and the sliding grooves (11) are in sliding connection with the U-shaped frame (2).

3. The high-precision eccentricity adjustment tooling for lens-facing assembly of claim 2, wherein: A threaded hole (12) is formed in the bottom of one end of the sliding groove (11) close to the base (4), and a bolt is threadedly connected to the threaded hole (12).

4. The high-precision eccentricity adjustment tooling for lens-facing assembly of claim 3, wherein: A U-shaped block (13) is fixedly connected to the lower part of one side of the U-shaped frame (2) facing the base (4), the bolt penetrates through the U-shaped block (13), and the U-shaped block (13) is in sliding connection with the sliding groove (11).

5. The high-precision eccentricity adjustment tooling for lens-facing assembly of claim 1, wherein: The through hole (21) is in communication with a limiting hole (22), and a screw positioning pin is threadedly connected to the limiting hole (22).

6. The high-precision eccentricity adjustment tooling for lens-facing assembly of claim 5, wherein: An internally threaded cylinder (36) is installed in the through hole (21), and one end of the screw positioning pin extending into the through hole (21) is detachably connected with the internally threaded cylinder (36).

7. The high-precision eccentricity adjustment tooling for lens-facing assembly of claim 6, wherein: The adjusting part includes a movable column (3) and a sleeve (34) arranged in the two opposite internally threaded cylinders (36) respectively, the movable column (3), the sleeve (34) and the internally threaded cylinder (36) are threadedly connected, a movable rod is slidably connected in the sleeve (34), one end of the movable rod extending out of the sleeve (34) and facing the movable column (3) is fixedly connected with a fixed disc (32), the fixed disc (32) abuts against the movable column (3), one end of the movable rod extending out of the sleeve (34) and away from the fixed disc (32) is fixedly connected with a round rod (31), a positioning needle (35) is installed in one end of the round rod (31) away from the movable rod, and the positioning needle (35) is detachably connected with the lens.

8. The high-precision eccentricity adjustment tooling for lens-facing assembly of claim 7, wherein: A spring (33) is arranged between the fixed disc (32) and the sleeve (34), and the spring (33) is sleeved on the movable rod.

9. The high-precision eccentricity adjustment tooling for lens-facing assembly of claim 7, wherein: The outer diameter of the fixed disc (32) is greater than the inner diameter of the sleeve (34).

10. The high-precision eccentricity adjustment tooling for lens-facing assembly of claim 7, wherein: One end of the sleeve (34) facing the fixed disc (32) is fixedly connected with a limiting ring, and the outer diameter of the limiting ring is greater than the inner diameter of the internally threaded cylinder (36).

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