Stable clamp for assisting assembly of optical lens

Abstract

The utility model relates to the technical field of optical lens fixtures, in particular to a stable fixture for assisting in assembling an optical lens, which comprises a barrel, a plurality of mounting grooves are arranged on the inner side wall of the barrel, clamping arms are slidably connected in the mounting grooves, one end of each clamping arm is fixedly connected with an arc-shaped clamping plate, and an annular groove is arranged on the outer side wall of the barrel. A through groove communicated to the annular groove is formed in the top of the mounting groove, a first annular plate, a gear and a second annular plate are sequentially and rotationally arranged in the annular groove from outside to inside, a first annular rack is arranged on the inner side of the first annular plate, a second annular rack is arranged on the outer side of the second annular plate, and the gear is meshed with the first annular rack and the second annular rack; a plurality of arc-shaped sliding grooves are formed in the second annular plate, guide rods are fixedly connected to the tops of the clamping arms, and the guide rods are in sliding connection with the arc-shaped sliding grooves; according to the utility model, lenses with different outer diameters can be quickly clamped, the clamp does not need to be replaced or independently adjusted, and the problem of poor adaptability of a traditional clamp is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to optical lens clamp technical field, more exactly relates to a kind of stable clamps of auxiliary optical lens assembly. BACKGROUND

[0002] In optical lens assembly process, the stable clamping of lens is the key link to guarantee the coaxiality and assembly accuracy of each optical element.The existing auxiliary assembly clamps generally have the problem of insufficient adaptability to different size lenses: the clamping mechanism of traditional clamps mostly adopts fixed spacing or independent adjustment structure, when different outer diameter lenses need to be clamped, special chuck or each clamping arm needs to be individually adjusted by manual replacement.This operation mode not only consumes time and effort, but also is difficult to guarantee the synchronism of multiple clamping arms, which is easy to cause the center of lens to deviate from the axis of clamp, resulting in assembly coaxiality error, and seriously affecting the imaging quality of optical system. SUMMARY

[0003] The utility model aims at providing a kind of stable clamps of auxiliary optical lens assembly, realize the quick clamping of different outer diameter lenses, without replacement of clamp or individual adjustment, solve the problem of poor adaptability of traditional clamps.

[0004] In order to achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0005] A kind of stable clamps of auxiliary optical lens assembly, including cylinder, the inside wall of the cylinder is radially provided with a plurality of installation grooves, the installation groove is distributed at equal intervals around the axis of the cylinder, the clamping arm is slidably connected in the installation groove, one end of the clamping arm fixedly connected with arc-shaped clamping plate in the inside of the cylinder, annular groove is formed on the outside wall of the cylinder, the annular groove is located above the installation groove, the top of the installation groove is provided with a through groove communicated with the annular groove, the first annular plate, gear, second annular plate are sequentially arranged in the annular groove from outside to inside, the inside of the first annular plate is provided with the first annular rack, the outside of the second annular plate is provided with the second annular rack, the gear is engaged with the first annular rack and the second annular rack, a plurality of arc-shaped sliding grooves are formed on the second annular plate, the arc-shaped sliding groove is one-to-one corresponding to the clamping arm, the top of the clamping arm is fixedly connected with guide rod, the guide rod passes through the through groove and extends into the arc-shaped sliding groove, and the guide rod is slidably connected with the arc-shaped sliding groove.

[0006] Further, the top of the annular groove is provided with a first annular sliding groove and a second annular sliding groove, the top of the first annular plate and the second annular plate is fixedly connected with a first annular sliding block and a second annular sliding block respectively, the first annular sliding block is slidably connected with the first annular sliding groove, and the second annular sliding block is slidably connected with the second annular sliding groove.

[0007] Further, the bottom inner side of the barrel body is provided with an annular boss, the annular boss is coaxially arranged with the barrel body, and the arc-shaped clamping plate is located above the annular boss.

[0008] Further, the bottom of the annular boss is provided with a guide chamfer.

[0009] Further, the clamping surface of the arc-shaped clamping plate is provided with an anti-skid coating.

[0010] Further, the anti-skid coating is a nano ceramic coating.

[0011] Further, the outer side wall of the first annular plate is provided with an anti-skid pattern.

[0012] Compared with the prior art, the present application has the following beneficial effects:

[0013] The first annular plate, the gear and the second annular plate in the annular groove of the barrel body constitute a synchronous transmission mechanism, when the first annular plate is rotated, the gear simultaneously meshes with the first annular rack and the second annular rack, and drives the second annular plate to rotate reversely. The arc-shaped sliding groove on the second annular plate drives the clamping arm to move radially along the mounting groove through the guide rod, so that the clamping of the lenses with different outer diameters is realized quickly, without the need of replacing the clamp or separately adjusting, and the problem of poor adaptability of the traditional clamp is solved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is a structural schematic view of the present application;

[0015] Fig. 2 It is a local structural schematic view of the present application;

[0016] Fig. 3 It is a local sectional view of the present application.

[0017] 1, barrel body; 101, mounting groove; 102, annular groove; 103, through groove; 104, first annular sliding groove; 105, second annular sliding groove; 2, clamping arm; 3, arc-shaped clamping plate; 4, first annular plate; 41, first annular rack; 42, first annular sliding block; 5, gear; 6, second annular plate; 601, arc-shaped sliding groove; 61, second annular rack; 62, second annular sliding block; 7, guide rod; 8, annular boss. DETAILED DESCRIPTION

[0018] As Figs. 1 to 3As shown, a kind of stable fixture for assisting optical lens assembly includes cylinder 1, the inner side wall of the cylinder 1 is radially provided with multiple installation grooves 101, the installation grooves 101 are distributed at equal intervals around the axis of the cylinder 1, the clamping arm 2 is slidably connected in the installation groove 101, one end of the clamping arm 2 is fixedly connected with arc-shaped clamping plate 3 in the inner side of the cylinder 1, the outer side wall of the cylinder 1 is provided with annular groove 102, the annular groove 102 is located above the installation groove 101, the top of the installation groove 101 is provided with through groove 103 which is communicated to the annular groove 102, the first annular plate 4, gear 5 and second annular plate 6 are sequentially arranged in the annular groove 102 from outside to inside, the inner side of the first annular plate 4 is provided with first annular rack 41, the outer side of the second annular plate 6 is provided with second annular rack 61, the gear 5 is engaged with the first annular rack 41 and second annular rack 61, the second annular plate 6 is provided with multiple arc-shaped sliding grooves 601, the arc-shaped sliding grooves 601 correspond to the clamping arms 2 one by one, the top of the clamping arm 2 is fixedly connected with guide rod 7, the guide rod 7 passes through the through groove 103 and extends into the arc-shaped sliding groove 601, and the guide rod 7 is slidably connected with the arc-shaped sliding groove 601.

[0019] The top of the annular groove 102 is provided with first annular sliding groove 104 and second annular sliding groove 105, the top of the first annular plate 4 and second annular plate 6 is fixedly connected with first annular sliding block 42 and second annular sliding block 62 respectively, the first annular sliding block 42 is slidably connected with the first annular sliding groove 104, and the second annular sliding block 62 is slidably connected with the second annular sliding groove 105.

[0020] The bottom inner side of the cylinder 1 is provided with annular boss 8, the annular boss 8 is coaxially arranged with the cylinder 1, and the arc-shaped clamping plate 3 is located above the annular boss 8; the lens can be placed on the annular boss 8 before clamping, in addition, during assembly, the lens barrel can be inserted into the inner side of the annular boss 8, and the lens barrel is in interference fit with the annular boss 8, so as to fix the lens barrel and keep the lens barrel coaxially arranged with the cylinder 1.

[0021] The bottom of the annular boss 8 is provided with guide chamfer; the guide chamfer is convenient for the lens barrel to be smoothly inserted into the annular boss 8.

[0022] The clamping surface of the arc-shaped clamping plate 3 is provided with anti-skid coating; the anti-skid coating is nano ceramic coating; the stable clamping force is provided through the anti-skid coating to avoid the lens slipping.

[0023] The outer side wall of the first annular plate 4 is provided with anti-skid lines; the anti-skid lines are convenient for increasing friction when manually adjusting to avoid slipping.

[0024] Working principle:

[0025] Insert the lens barrel into the annular boss, place the lens on the annular boss, rotate the first annular plate 4, drive the gear 5 to rotate through the first annular rack 41, the gear 5 synchronously drives the second annular rack 61, and the second annular plate 6 rotates reversely, the arc-shaped sliding groove 601 of the second annular plate 6 pushes the guide rod 7 to move radially along the through groove 103, drives the clamping arm 2 to fold or unfold synchronously, the arc-shaped clamping plate 3 at the end of the clamping arm 2 contacts the edge of the lens, and the lens is clamped, and then the lens is assembled into the lens barrel through the external pressing equipment.

[0026] The utility model discloses a gear-ring gear-arc-shaped sliding groove composite transmission realizes the high-precision synchronous radial movement of multiple clamping arms, and solves the low adjustment efficiency and poor coaxiality of the traditional clamp.

[0027] The basic principle, main features and advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model can also have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A stabilizing fixture for assisting in the assembly of optical lenses, characterized in that: The device includes a cylindrical body (1). Multiple mounting grooves (101) are radially formed on the inner wall of the cylindrical body (1). These mounting grooves (101) are evenly spaced around the axis of the cylindrical body (1). A clamping arm (2) is slidably connected within each mounting groove (101). An arc-shaped clamping plate (3) is fixedly connected to one end of each clamping arm (2) located inside the cylindrical body (1). An annular groove (102) is formed on the outer wall of the cylindrical body (1). The annular groove (102) is located above the mounting grooves (101). A through groove (103) is formed at the top of the mounting groove (101) and connects to the annular groove (102). A first annular plate is rotatably arranged sequentially from the outside to the inside within the annular groove (102). (4), gear (5), second annular plate (6), the inner side of the first annular plate (4) is provided with a first annular rack (41), the outer side of the second annular plate (6) is provided with a second annular rack (61), the gear (5) meshes with the first annular rack (41) and the second annular rack (61), the second annular plate (6) is provided with a plurality of arc-shaped sliding grooves (601), the arc-shaped sliding grooves (601) correspond one-to-one with the clamping arm (2), the top of the clamping arm (2) is fixedly connected with a guide rod (7), the guide rod (7) passes through the through groove (103) and extends into the arc-shaped sliding groove (601), the guide rod (7) is slidably connected to the arc-shaped sliding groove (601).

2. The stabilizing fixture for assembling auxiliary optical lenses as described in claim 1, characterized in that: The top of the annular groove (102) is provided with a first annular slide groove (104) and a second annular slide groove (105). The tops of the first annular plate (4) and the second annular plate (6) are respectively fixedly connected with a first annular slider (42) and a second annular slider (62). The first annular slider (42) is slidably connected to the first annular slide groove (104), and the second annular slider (62) is slidably connected to the second annular slide groove (105).

3. The stabilizing fixture for assembling auxiliary optical lenses as described in claim 1, characterized in that: An annular boss (8) is provided on the inner side of the bottom of the cylinder (1). The annular boss (8) is coaxially arranged with the cylinder (1). The arc-shaped clamp (3) is located above the annular boss (8).

4. The stabilizing fixture for assembling auxiliary optical lenses as described in claim 3, characterized in that: The bottom of the annular boss (8) is provided with a guide chamfer.

5. The stabilizing fixture for assembling auxiliary optical lenses as described in claim 1, characterized in that: The clamping surface of the arc-shaped clamp (3) is provided with an anti-slip coating.

6. The stabilizing fixture for assembling auxiliary optical lenses as described in claim 5, characterized in that: The anti-slip coating is a nano-ceramic coating.

7. The stabilizing fixture for assembling auxiliary optical lenses as described in claim 1, characterized in that: The outer side wall of the first annular plate (4) is provided with anti-slip texture.

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