Optical fiber coating layer detection clamp

Abstract

The utility model provides an optical fiber coating layer detection clamp, which comprises an optical fiber clamp, a rotating mechanism, a driving mechanism, a transparent objective table and a support frame, and is characterized in that the optical fiber clamp comprises an upper clamp and a lower clamp which are oppositely arranged, and a through hole for an optical fiber to pass through is formed between the upper clamp and the lower clamp; the rotating mechanism comprises a hollow rotating shaft for the optical fiber to pass through and a rotating disc fixedly connected with the lower clamp, and the rotating disc sleeves the hollow rotating shaft and is fixedly connected with the hollow rotating shaft; the transparent objective table is embedded above the microscope objective table, and the middle part of the transparent objective table is provided with an oil storage tank for accommodating matching oil; the driving mechanism is connected with the rotating disc to drive the rotating disc to rotate. The hollow rotating shaft is connected with the microscope objective table through the supporting frame. According to the optical fiber coating layer detection clamp provided by the utility model, the optical fiber clamp is matched with the rotating mechanism and the driving mechanism to work, so that the coating layer on the surface of the optical fiber can be observed from multiple angles.

Description

TECHNICAL FIELD

[0001] The utility model relates to optical fiber detection technical field especially relates to a kind of optical fiber coating layer detection clamps. BACKGROUND

[0002] Optical fiber is by high purity glass high-temperature melting and drawing into filament, for protecting glass filament, acrylate coating is coated on the outer surface of glass filament, coating is divided into two layers, inner coating is used to protect bare optical fiber surface from mechanical damage, and it plays the role of buffering external stress in optical fiber use.External coating is relatively hard, which is beneficial to the wear resistance of optical fiber.

[0003] In the process of coating acrylate coating on optical fiber, there is a certain probability of producing bubbles, concave, convex, uneven coating and other defects, and the quality of optical fiber coating needs to be checked by microscope in the production process.Optical fiber is difficult to fix due to its small diameter, and it is also difficult to rotate the optical fiber to ensure that the coating at each angle of the circumferential direction is detected in place. UTILITARY MODEL

[0004] The main purpose of the utility model is to provide a kind of optical fiber coating layer detection clamp, to facilitate the clamping and turning of optical fiber, to facilitate the multi-angle coating detection of optical fiber.

[0005] To achieve the above purpose, the utility model provides a kind of optical fiber coating layer detection clamp, including optical fiber clamp, rotating mechanism, drive mechanism, transparent carrier and support frame, wherein,

[0006] The optical fiber clamp includes oppositely arranged upper clamp and lower clamp, and a through hole is formed between the upper clamp and the lower clamp for the optical fiber to pass through;

[0007] The rotating mechanism includes a hollow rotating shaft for the optical fiber to pass through, and a rotating disc fixedly connected with the lower clamp, the rotating disc is sleeved outside the hollow rotating shaft and fixedly connected with it;

[0008] The transparent carrier is embedded above the microscope carrier and has an oil storage groove in the middle for accommodating matching oil.

[0009] The drive mechanism is connected with the rotating disc to drive it to rotate, and the hollow rotating shaft is connected with the microscope carrier through the support frame.

[0010] Preferably, the outer ring side of the oil storage groove is also provided with an annular groove to collect excess matching oil, and a threading groove is formed on the top end of the annular groove and the oil storage groove for the optical fiber to pass through.

[0011] Preferably, the depth of the threading groove is 200 μm ~400 μm;Scale is provided on the rotating disc.

[0012] Preferably, the optical fiber coating layer detection fixture further comprises a height adjusting mechanism between the hollow rotating shaft and the support frame, and the height adjusting mechanism is used to adjust the mounting height of the hollow rotating shaft relative to the support frame.

[0013] Preferably, the height adjusting mechanism is a support plate with a waist-shaped hole, the upper end of the support plate is fixedly connected with the hollow rotating shaft, and the lower end of the support plate is connected with the support frame through a hand screw passing through the waist-shaped hole and a through hole of the support frame to adjust the mounting angle of the support plate.

[0014] Preferably, the upper clamp and the lower clamp are elastically connected through an elastic mechanism, and the upper clamp and the lower clamp are both provided with a receiving groove for accommodating the optical fiber on the side opposite to each other.

[0015] Preferably, the elastic mechanism comprises a screw rod passing through the upper clamp and the lower clamp, a nut sleeved on the screw rod, and an elastic piece, the upper end of the elastic piece is abutted with the bottom end surface of the lower clamp, and the lower end of the elastic piece is abutted with the top end surface of the nut.

[0016] Preferably, the upper clamp is a T-shaped metal block, and the lower clamp is an inverted L-shaped metal block.

[0017] Preferably, the support frame is an F-shaped clamping support frame, the support frame is clamped on the microscope stage through a screw, and the lower part is connected with the height adjusting mechanism through a screw.

[0018] Preferably, the rotating disc and the hollow rotating shaft are connected through a bearing.

[0019] The optical fiber coating layer detection fixture has the following beneficial effects:

[0020] 1. The optical fiber coating layer detection fixture is used in cooperation with the rotating mechanism and the driving mechanism, so that the surface of the optical fiber can be observed from multiple angles.

[0021] 2. The optical fiber coating layer detection fixture has the advantages of stable and reliable work and simple structure. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 Fig. 1 is a front view of the optical fiber coating layer detection fixture;

[0023] Figure 2 Fig. 2 is a top view of the optical fiber coating layer detection fixture;

[0024] Figure 3 Fig. 3 is a top view of a partial structure of the optical fiber coating layer detection fixture;

[0025] Figure 4 Fig. 4 is a side view of the optical fiber coating layer detection fixture;

[0026] Figure 5 It is partial sectional view schematic diagram of the optical fiber coating layer detection clamp.

[0027] In the figure, 1 is optical fiber, 2 is optical fiber clamp, 3 is rotating mechanism, 4 is support frame, 5 is driving mechanism, 6 is transparent carrier, 7 is microscope carrier, 8 is oil storage groove, 9 is threading groove, 10 is annular groove, 11 is height adjusting mechanism.

[0028] The realization, functional features and advantages of the utility model will be further explained by combining with embodiments and referring to the drawings. DETAILED DESCRIPTION

[0029] It should be understood that the specific embodiments described herein are merely intended to explain the utility model, and are not intended to limit the utility model.

[0030] It should be noted that in the description of the utility model, the orientation or position relationship indicated by the terms "transverse", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and is not intended to indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0031] In the preferred embodiment, referring to Figures 1 to 4 An optical fiber coating layer detection clamp, comprising an optical fiber clamp 2, a rotating mechanism 3, a driving mechanism 5, a transparent carrier 6 and a support frame 4, wherein,

[0032] The optical fiber clamp 2 comprises oppositely arranged upper and lower clamps, and a through hole for the optical fiber to pass through is formed between the upper and lower clamps;

[0033] The rotating mechanism 3 comprises a hollow rotating shaft for the optical fiber to pass through, and a rotating disc fixedly connected with the lower clamp, the rotating disc is sleeved outside the hollow rotating shaft and fixedly connected with the hollow rotating shaft;

[0034] The transparent carrier 6 is embedded above the microscope carrier 7 and is provided with an oil storage groove 8 in the middle for accommodating matching oil;

[0035] The driving mechanism 5 is connected with the rotating disc to drive it to rotate, and the hollow rotating shaft is connected with the microscope carrier 7 through the support frame 4.

[0036] In the embodiment, the material of the transparent carrier 6 is transparent acrylic. The driving mechanism 5 is a servo motor. A scale can be provided on the rotating disc to facilitate the detection personnel to check the rotation angle of the optical fiber.

[0037] Further, referring to Figure 2 and Figure 5 , the outer ring side of the oil storage groove 8 is further provided with an annular groove 10 to collect excess matching oil, and the annular groove 10 and the top end of the oil storage groove 8 are both provided with a threading groove 9 (the cross section is U-shaped) for the optical fiber to pass through. Specifically, the depth of the threading groove 9 is 200 μm-400 μm. The optical fiber is soaked in the matching oil, so that the microscope can accurately check the coating layer on the surface of the optical fiber.

[0038] In the embodiment, the annular groove 10 is provided to collect excess matching oil, thereby avoiding waste of matching oil and pollution of the transparent carrier 6.

[0039] Further, referring to Figure 1 , the optical fiber coating layer detection clamp further comprises a height adjusting mechanism 11 between the hollow rotating shaft and the support frame 4, and the mounting height of the hollow rotating shaft relative to the support frame 4 is adjusted through the height adjusting mechanism 11.

[0040] The embodiment proposes a specific structure of the height adjusting mechanism 11: the height adjusting mechanism 11 is a support plate provided with a waist-shaped hole, the upper end of the support plate is fixedly connected with the hollow rotating shaft, and the lower end of the support plate is adjusted in mounting angle through hand-tightening screws (at least two hand-tightening screws are provided) passing through the waist-shaped hole and the through hole of the support frame 4.

[0041] In the embodiment, referring to Figure 4 , the upper clamp and the lower clamp are elastically connected through the elastic mechanism, and the side opposite to each other of the upper clamp and the lower clamp is provided with a receiving groove for accommodating the optical fiber.

[0042] Specifically, the embodiment proposes a specific structure of the elastic mechanism: the elastic mechanism comprises a screw rod penetrating the upper clamp and the lower clamp, a nut sleeved on the screw rod, and an elastic member, the upper end of the elastic member abuts against the bottom end face of the lower clamp, and the lower end of the elastic member abuts against the top end face of the nut. The elastic member is a spring or a compression spring. By adjusting the pre-tightening force of the elastic member, the clamping force of the upper clamp and the lower clamp on the optical fiber is changed.

[0043] In the embodiment, the elastic mechanism is provided, so that the distance between the upper clamp and the lower clamp can be adjusted according to the optical fiber with different diameters, thereby improving the versatility of the optical fiber coating layer detection clamp.

[0044] In the embodiment, a semicircular shallow groove with a diameter of 30 μm is provided in the middle bottom of the upper clamp, and a semicircular shallow groove with a diameter of 130 μm is provided in the middle top of the lower clamp. Two sets of elastic mechanisms are provided between the upper clamp and the lower clamp.

[0045] In the embodiment, the upper clamp is a T-shaped metal block, and the lower clamp is an inverted L-shaped metal block. Figure 1 The support frame 4 is an F-shaped clamping support frame, and the support frame 4 is clamped on the microscope stage 7 through screw fastening, and the lower part of the support frame 4 is connected with the height adjusting mechanism 11 through a screw. The rotating disc and the hollow rotating shaft are connected through a bearing.

[0046] The working process of the optical fiber coating detection clamp is as follows: one side of the optical fiber is clamped between the upper clamp and the lower clamp, the clamping force of the upper clamp and the lower clamp on the optical fiber is adjusted by rotating the nut on the screw rod, so that the optical fiber is clamped, the other end of the optical fiber passes through the threading groove 9 on the transparent stage 6, and the optical fiber is matched with the microscope through the matching oil, so that the coating quality of the coating layer on the surface of the optical fiber is detected, after the optical fiber at the current angle is detected, the rotating mechanism 3 drives the optical fiber to rotate, so that the optical fiber coating layer quality at different angles is detected.

[0047] The optical fiber coating detection clamp has the following beneficial effects:

[0048] 1. The optical fiber clamp 2 cooperates with the rotating mechanism 3 and the driving mechanism 5 to work, so that the coating layer on the surface of the optical fiber is observed at multiple angles.

[0049] 2. The optical fiber coating detection clamp has the advantages of stable and reliable work, simple structure and easy realization.

[0050] The above is only the preferred embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation, direct or indirect application in other related technical fields according to the content of the utility model specification and drawings is also included in the patent protection range of the utility model.

Claims

1. A fiber optic coating testing fixture, characterized in that, It includes fiber optic clamps, a rotating mechanism, a drive mechanism, a transparent stage, and a support frame, among which, The fiber optic clamp includes an upper clamp and a lower clamp arranged opposite to each other, with a through hole formed between the upper clamp and the lower clamp for the fiber optic cable to pass through. The rotating mechanism includes a hollow rotating shaft for the optical fiber to pass through, and a rotating disk fixedly connected to the lower clamp. The rotating disk is sleeved outside the hollow rotating shaft and fixedly connected to it. The transparent stage is embedded above the microscope stage and has an oil reservoir in the middle for holding matching oil. The drive mechanism is connected to the rotating disk to drive its rotation, and the hollow rotating shaft is connected to the microscope stage through a support frame.

2. The optical fiber coating detection fixture as described in claim 1, characterized in that, The outer ring side of the oil storage tank is also provided with an annular groove to collect excess matching oil. Both the annular groove and the top of the oil storage tank are provided with a cable pass-through groove for optical fibers to pass through.

3. The optical fiber coating detection fixture as described in claim 2, characterized in that, The depth of the threading groove is 200μm~400μm; the rotating disk is marked with graduations.

4. The optical fiber coating detection fixture as described in claim 1, characterized in that, It also includes a height adjustment mechanism located between the hollow shaft and the support frame, which is used to adjust the installation height of the hollow shaft relative to the support frame.

5. The optical fiber coating detection fixture as described in claim 4, characterized in that, The height adjustment mechanism is a support plate with an oblong hole. The upper end of the support plate is fixedly connected to the hollow rotating shaft, and the lower end of the support plate is adjusted by a hand-tightened screw passing through the oblong hole and the through hole on the support frame to adjust the installation angle of the support plate.

6. The optical fiber coating detection fixture as described in claim 1, characterized in that, The upper clamp and the lower clamp are elastically connected by an elastic mechanism, and each of the upper clamp and the lower clamp has a receiving groove for accommodating optical fibers on the opposite side.

7. The optical fiber coating detection fixture as described in claim 6, characterized in that, The elastic mechanism includes a screw threaded through the upper and lower clamps, a nut fitted on the screw, and an elastic element. The upper end of the elastic element abuts against the bottom end face of the lower clamp, and the lower end of the elastic element abuts against the top end face of the nut.

8. The optical fiber coating detection fixture as described in claim 7, characterized in that, The upper clamp is a T-shaped metal block, and the lower clamp is an inverted L-shaped metal block.

9. The optical fiber coating detection fixture as described in claim 1, characterized in that, The support frame is an F-shaped clamping support frame, which is fastened to the microscope stage by screws, and the lower part is connected to the height adjustment mechanism by screws.

10. The optical fiber coating testing fixture according to any one of claims 1 to 9, characterized in that, The rotating disk and the hollow shaft are connected by bearings.

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