Optical fiber rod coating tool

Abstract

The utility model relates to an optical fiber rod coating tool which comprises a vertically arranged supporting column, an upper positioning disc is arranged on the upper portion of the supporting column, the supporting column is sleeved with the upper positioning disc, the upper positioning disc is in sliding fit with the upper positioning disc, and a plurality of upper positioning mechanisms are arranged on the edge of the upper positioning disc; a lower positioning disc is fixedly arranged on the lower portion of the supporting column, a plurality of lower positioning mechanisms are arranged on the edge of the lower positioning disc, and the lower positioning mechanisms correspond to the upper positioning mechanisms in a one-to-one mode. The upper positioning mechanism is used for positioning the upper end of the optical fiber rod, the lower positioning mechanism is used for positioning the lower end of the optical fiber rod, and the upper positioning disc is in sliding fit with the supporting column, so that the height of the upper positioning disc can be adjusted, and the distance between the upper positioning mechanism and the lower positioning mechanism is further adjusted; therefore, the upper positioning mechanism and the lower positioning mechanism can position the optical fiber rods with various lengths.

Description

Technical Field

[0001] This utility model belongs to the field of coating equipment, and in particular to a fiber optic rod coating fixture. Background Technology

[0002] During the production of optical fiber rods, a coating process is usually required on their surface to improve their optical performance and usability. Currently, the most common coating method for optical fiber rods is physical vapor deposition, which involves depositing materials onto the surface of the optical fiber rod in a vacuum environment through evaporation or sputtering.

[0003] Patent application CN202411538330.6 discloses a fiber optic rod coating mechanism. The mechanism mounts the fiber optic rod on a support, and during coating, it achieves a three-stage rotational motion of the rod, allowing for more comprehensive coating and improved coating quality. However, this mechanism can only clamp fiber optic rods of fixed lengths and cannot accommodate fiber optic rods of various lengths. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a fiber optic rod coating fixture that ensures coating uniformity and is applicable to coating fiber optic rods of various sizes.

[0005] To solve the above problems, the technical solution adopted by this utility model is as follows: a fiber optic rod coating fixture, including a vertically arranged support column, an upper positioning plate is provided on the upper part of the support column, the upper positioning plate is sleeved on the outside of the support column and slides in cooperation with the support column, and multiple upper positioning mechanisms are provided on the edge of the upper positioning plate; a lower positioning plate is fixedly provided on the lower part of the support column, and multiple lower positioning mechanisms are provided on the edge of the lower positioning plate, and the lower positioning mechanisms correspond one-to-one with the upper positioning mechanisms.

[0006] Furthermore, the inner wall of the upper positioning plate is provided with an axially extending guide protrusion, and the outer wall of the support column is provided with an axially extending guide groove. The guide protrusion is located in the guide groove and slides in cooperation with the guide groove.

[0007] Furthermore, the upper positioning mechanism includes a detachable upper sleeve, and the lower surface of the upper sleeve is provided with an upper central blind hole;

[0008] The lower positioning mechanism includes a detachable lower sleeve, and the upper surface of the lower sleeve is provided with a lower central blind hole.

[0009] Furthermore, the upper positioning mechanism includes an upper transmission sleeve, the upper sleeve is detachably installed inside the upper transmission sleeve and coaxial with the upper transmission sleeve, and the upper transmission sleeve is connected to a drive mechanism for driving the upper transmission sleeve to rotate.

[0010] The lower positioning mechanism further comprises a lower transmission sleeve, the lower sleeve is detachably installed in the lower transmission sleeve and coaxial with the lower transmission sleeve, and the lower transmission sleeve is rotatably installed on the lower positioning disc.

[0011] Further, the driving mechanism comprises a motor, a main shaft of the motor is provided with a first gear, each outer wall of the upper transmission sleeve is provided with a second gear, the first gear is engaged with one of the second gears, and the second gears on the adjacent two upper transmission sleeves are engaged.

[0012] Further, the upper sleeve and the lower sleeve are both provided with elastic sleeves.

[0013] Further, the upper positioning disc is connected with a pressure mechanism.

[0014] Further, the pressure mechanism comprises a pneumatic cylinder, a cylinder body of the pneumatic cylinder is fixed on the lower positioning disc, and a piston rod of the pneumatic cylinder is fixedly connected with the upper positioning disc.

[0015] The upper positioning mechanism is used for positioning the upper end of the optical fiber rod, the lower positioning mechanism is used for positioning the lower end of the optical fiber rod, the height of the upper positioning disc can be adjusted due to the sliding fit between the upper positioning disc and the supporting column, the distance between the upper positioning mechanism and the lower positioning mechanism is further adjusted, so that the upper positioning mechanism and the lower positioning mechanism can position optical fiber rods with various lengths, and in addition, the supporting column can be connected with a driving device such as a motor, the entire tooling is driven to rotate during coating, and uniform coating of the optical fiber rods is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a front view of the utility model;

[0017] Figure 2 is Figure 1 is an enlarged view of part A in the utility model;

[0018] Figure 3 is Figure 1 is an enlarged view of part B in the utility model;

[0019] Figure 4 is a top view of the utility model;

[0020] Fig. 1 is a supporting column; 2 is an upper positioning disc; 3 is a lower positioning disc; 4 is a guide convex strip; 5 is an upper sleeve; 6 is an upper center blind hole; 7 is a lower sleeve; 8 is a lower center blind hole; 9 is an upper transmission sleeve; 10 is a lower transmission sleeve; 11 is a motor; 12 is a first gear; 13 is a second gear; 14 is an elastic sleeve; 15 is a pressure mechanism. DETAILED DESCRIPTION

[0021] The utility model will be further described below in combination with the drawings and examples.

[0022] The utility model discloses a kind of optical fiber rod coating tool, as shown in figure Figures 1 to 4 It includes vertical support column 1, the upper part of support column 1 is provided with upper locating disc 2, upper locating disc 2 is sleeved in support column 1 outer and with support column 1 sliding fit, the edge of upper locating disc 2 is provided with multiple upper locating mechanism;Lower part of support column 1 is fixedly provided with lower locating disc 3, the edge of lower locating disc 3 is provided with multiple lower locating mechanism, lower locating mechanism and upper locating mechanism one to one correspondence, that is, each lower locating mechanism and an upper locating mechanism are mutually matched, and one optical fiber rod can be positioned.

[0023] Among them, upper locating mechanism is used for positioning the upper end of optical fiber rod, and lower locating mechanism is used for positioning the lower end of optical fiber rod, and after positioning, optical fiber rod can be kept stable. Upper locating disc 2 and lower locating disc 3 adopt disc, and upper locating mechanism and lower locating mechanism are all multiple, and multiple optical fiber rods can be positioned, and multiple optical fiber rods can be coated at one time, so as to improve coating efficiency. Support column 1 adopts circular pivot, and the upper end or lower end of support column 1 can be connected with motor and other driving devices, and the whole tool is driven to rotate during coating, so as to ensure that each optical fiber rod can be uniformly coated.

[0024] Since upper locating disc 2 and support column 1 are slidingly fitted, upper locating disc 2 can be slid, so as to adjust the distance between upper locating disc 2 and lower locating disc 3, and then adjust the distance between upper locating mechanism and lower locating mechanism, so that upper locating mechanism and lower locating mechanism can position optical fiber rods of multiple lengths.

[0025] In the utility model, the inner wall of upper locating disc 2 is provided with axially extending guide convex strip 4, the outer wall of support column 1 is provided with axially extending guide groove, and guide convex strip 4 is located in guide groove and slidingly fitted with guide groove. Guide convex strip 4 can play a guiding role, and when sliding upper locating disc 2, it can ensure that upper locating disc 2 moves along the axial direction of support column 1, to prevent upper locating disc 2 from rotating relative to support column 1 and causing misplacement of upper locating mechanism and lower locating mechanism.

[0026] Upper locating mechanism and lower locating mechanism can adopt existing mechanism for centering and clamping columnar parts, and as a preferred embodiment: upper locating mechanism includes detachable upper sleeve 5, and the lower surface of upper sleeve 5 is provided with upper center blind hole 6;Lower locating mechanism includes detachable lower sleeve 7, and the upper surface of lower sleeve 7 is provided with lower center blind hole 8. The diameter of upper center blind hole 6 and lower center blind hole 8 is matched with the diameter of optical fiber rod, to ensure that optical fiber rod can be inserted into upper center blind hole 6 and lower center blind hole 8. Since upper sleeve 5 and lower sleeve 7 are detachably installed, when coating optical fiber rods of different diameters, upper sleeve 5 and lower sleeve 7 with inner diameter matched with the diameter of optical fiber rod can be replaced, so that optical fiber rods of multiple lengths and multiple diameters can be coated by using the tool.

[0027] When installing the optical fiber rods, the upper positioning disc 2 is first moved upward so that the distance between the upper sleeve 5 and the lower sleeve 7 is greater than the length of the optical fiber rods, then the lower ends of the optical fiber rods are inserted into the lower central blind holes 8, and then the upper positioning disc 2 is moved downward so that the upper ends of the optical fiber rods are inserted into the upper central blind holes 6, that is, the positioning is completed. In order to ensure that the upper ends of the optical fiber rods can be quickly and conveniently inserted into the upper central blind holes 6, a guide taper hole can be arranged at the lower end of the upper central blind hole 6, the diameter of the guide taper hole gradually decreases from bottom to top, and the diameter of the lower end of the guide taper hole is relatively large, so that the upper end of the optical fiber rod is more easily inserted into the guide taper hole, then passes through the guide taper hole and enters the upper central blind hole 6.

[0028] In order to further improve the uniformity of the coating of each optical fiber rod, the upper positioning mechanism comprises an upper transmission sleeve 9, the upper transmission sleeve 9 is vertically arranged and rotatably installed on the upper positioning disc 2, the upper sleeve 5 is detachably installed in the upper transmission sleeve 9 and coaxial with the upper transmission sleeve 9, and the upper transmission sleeve 9 is connected with a driving mechanism for driving the rotation of the upper transmission sleeve 9. The lower positioning mechanism further comprises a lower transmission sleeve 10, the lower sleeve 7 is detachably installed in the lower transmission sleeve 10 and coaxial with the lower transmission sleeve 10, the lower transmission sleeve 10 is rotatably installed on the lower positioning disc 3, and the lower transmission sleeve 10 is coaxially arranged with the upper transmission sleeve 9.

[0029] The upper sleeve 5 can be connected with the upper transmission sleeve 9 through connecting screws, and the lower sleeve 7 can be connected with the lower transmission sleeve 10 through connecting screws, so as to facilitate the disassembly and replacement of the upper sleeve 5 and the lower sleeve 7 with different inner diameters. The inner diameters of the upper transmission sleeve 9 and the lower transmission sleeve 10 are greater than the outer diameters of the upper sleeve 5 and the lower sleeve 7, so that the upper sleeve 5 and the lower sleeve 7 with various inner and outer diameters can be installed in the upper transmission sleeve 9 and the lower transmission sleeve 10. The driving mechanism can drive the rotation of the upper transmission sleeve 9, and the upper transmission sleeve 9 can drive the rotation of the upper sleeve 5 and the optical fiber rod inserted in the upper sleeve 5 when the upper transmission sleeve 9 rotates. When a motor or the like is used to drive the rotation of the support column 1, the whole tooling rotates, and each optical fiber rod rotates around the support column 1, and at the same time, each optical fiber rod can rotate around its center line, so that uniform coating can be ensured for all optical fiber rods.

[0030] In the utility model, the driving mechanism comprises a motor 11, the main shaft of the motor 11 is provided with a first gear 12, the outer wall of each upper transmission sleeve 9 is provided with a second gear 13, the first gear 12 is engaged with one of the second gears 13, and the second gears 13 on the adjacent two upper transmission sleeves 9 are engaged. The motor 11 drives the rotation of the first gear 12 when rotating, the first gear 12 drives the rotation of the second gear 13 engaged with it, and the second gear 13 drives the rotation of the adjacent second gear 13, so that the power of the motor 11 is transmitted to each upper transmission sleeve 9.

[0031] Both the upper sleeve 5 and the lower sleeve 7 are equipped with elastic sleeves 14, which can be made of rubber or similar materials. The upper central blind hole 6 and the lower central blind hole 8 are the inner holes of the elastic sleeves 14. The inner diameter of the elastic sleeve 14 is slightly smaller than the diameter of the fiber optic rod. After the fiber optic rod is inserted into the elastic sleeve 14, the elastic sleeve 14 deforms to generate elastic force, which tightly wraps the fiber optic rod, preventing it from shaking and improving the stability of the fiber optic rod's positioning. At the same time, the elastic sleeve 14 is made of elastic material, which can prevent wear at both ends of the fiber optic rod.

[0032] To further improve the stability of fiber optic rod positioning, a pressure mechanism 15 is connected to the upper positioning disk 2. After the fiber optic rod is installed into the upper sleeve 5 and the lower sleeve 7, the pressure mechanism 15 applies downward pressure to the upper positioning disk 2. This pressure is transmitted to the upper sleeve 5 and the fiber optic rod, causing the upper end face of the fiber optic rod to press against the bottom of the upper central blind hole 6, and the lower end face of the fiber optic rod to press against the bottom of the lower central blind hole 8. This makes the fiber optic rod more stable and also increases the static friction between the upper end of the fiber optic rod and the bottom of the upper central blind hole 6. When the upper sleeve 5 rotates with the upper transmission sleeve 9, it can drive the fiber optic rod to rotate through the static friction.

[0033] In this invention, the pressure mechanism 15 includes a cylinder, the cylinder body of which is fixed on the lower positioning plate 3, and the piston rod of the cylinder is fixedly connected to the upper positioning plate 2. This installation method makes the entire tooling structure more compact. The cylinder can drive the upper positioning plate 2 to move up and down, thus adjusting the position of the upper positioning plate 2, and can also apply a downward pulling force to the upper positioning plate 2, causing the two ends of the optical fiber rod to be pressed tightly and fixed.

[0034] During coating, multiple fixtures of this invention can be installed in the coating device to coat more optical fiber rods at once, thereby improving coating efficiency.

[0035] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A fiber optic rod coating fixture, characterized in that: It includes a vertically arranged support column (1), an upper positioning plate (2) is provided on the upper part of the support column (1), the upper positioning plate (2) is sleeved on the outside of the support column (1) and slides in cooperation with the support column (1), and multiple upper positioning mechanisms are provided on the edge of the upper positioning plate (2); a lower positioning plate (3) is fixedly provided on the lower part of the support column (1), and multiple lower positioning mechanisms are provided on the edge of the lower positioning plate (3), and the lower positioning mechanisms correspond one-to-one with the upper positioning mechanisms.

2. The optical fiber rod coating fixture as described in claim 1, characterized in that: The inner wall of the upper positioning plate (2) is provided with an axially extending guide ridge (4), and the outer wall of the support column (1) is provided with an axially extending guide groove. The guide ridge (4) is located in the guide groove and slides in cooperation with the guide groove.

3. The optical fiber rod coating fixture as described in claim 1, characterized in that: The upper positioning mechanism includes a detachable upper sleeve (5), and the lower surface of the upper sleeve (5) is provided with an upper central blind hole (6); The lower positioning mechanism includes a detachable lower sleeve (7), and the upper surface of the lower sleeve (7) is provided with a lower central blind hole (8).

4. The optical fiber rod coating fixture as described in claim 3, characterized in that: The upper positioning mechanism includes an upper transmission sleeve (9), the upper sleeve (5) is detachably installed inside the upper transmission sleeve (9) and coaxial with the upper transmission sleeve (9), and the upper transmission sleeve (9) is connected to a drive mechanism that drives the upper transmission sleeve (9) to rotate. The lower positioning mechanism also includes a lower transmission sleeve (10), the lower sleeve (7) is detachably installed inside the lower transmission sleeve (10) and coaxial with the lower transmission sleeve (10), and the lower transmission sleeve (10) is rotatably installed on the lower positioning plate (3).

5. The optical fiber rod coating fixture as described in claim 4, characterized in that: The drive mechanism includes a motor (11), the main shaft of the motor (11) is provided with a first gear (12), and the outer wall of each upper transmission sleeve (9) is provided with a second gear (13). The first gear (12) meshes with one of the second gears (13), and the second gears (13) on two adjacent upper transmission sleeves (9) mesh.

6. The optical fiber rod coating fixture as described in claim 3, characterized in that: Both the upper sleeve (5) and the lower sleeve (7) are provided with elastic sleeves (14).

7. The optical fiber rod coating fixture as described in claim 4, characterized in that: The upper positioning plate (2) is connected to a pressure mechanism (15).

8. The optical fiber rod coating fixture as described in claim 7, characterized in that: The pressure mechanism (15) includes a cylinder, the cylinder body of which is fixed on the lower positioning plate (3), and the piston rod of the cylinder is fixedly connected to the upper positioning plate (2).

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