Optical fiber cutter with left and right optical fiber clamps and positioning shaft adjusting mechanism

Abstract

The utility model discloses an optical fiber cutting knife with a left optical fiber clamp, a right optical fiber clamp and a positioning shaft adjusting mechanism. Comprising a base, a pressing plate and a cutting assembly, a cutting groove is formed in the upper end face of the base, the cutting assembly is arranged in the cutting groove, the cutting groove of the base is covered with the pressing plate, and pressing pads are fixed to the two sides of the cutting groove and the corresponding positions of the pressing plate; the rotating part is provided with a pressure pad gap adjusting mechanism used for adjusting the pressure plates, the rotating part comprises a shaft hole formed in the base and a rotating shaft penetrating through the shaft hole, the pressure plates are arranged at the two ends of the rotating shaft and fastened through fasteners, a platform is fixedly connected to the outer side of the base, and optical fiber clamps are arranged on the base and the platform. The platform is arranged on the outer side of the base, the double-optical-fiber clamps are arranged through the platform and the base, the double-optical-fiber clamps are kept on the left side and the right side of the cutting assembly, the double-side positioning effect on optical fibers is achieved, and the machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to an optical fiber cutting knife, in particular to an optical fiber cutting knife with left and right double optical fiber clamps and a positioning shaft adjustment mechanism. Background Art

[0002] During the optical fiber processing, an optical fiber cutter is required to cut and segment. After cutting, the optical fiber cutting surface must be kept flat before it can be used for device packaging, cold connection, and discharge welding. Ordinary optical fiber cutters generally include a base, a pressure plate, a pressure pad, and a cutting assembly. The upper end surface of the base is provided with a cutting groove, the cutting assembly is arranged in the cutting groove, the pressure plate covers the cutting groove of the base, and the pressure pads are arranged on the base and the pressure plate assembly on the left and right sides of the cutting groove. When the optical fiber is cut, the pressure plate assembly is rotated to make the pressure pad press the optical fiber, and the cutting knife of the cutting assembly is used to cut the optical fiber to complete the cutting of the optical fiber. To ensure the flatness of the optical fiber cutting surface, after the pressure plate and the base are pressed together, there must be no gap between the upper and lower pressure pads. This requires the size processing of the rotating connection part of the base and the pressure plate to be very precise, which is easy to lead to low yield of the optical fiber cutter and increase production costs. In response to the above problems, the applicant submitted a utility model patent application named "Optical Fiber Cutter Positioning Axis Adjustment Mechanism" in 2019 (application number CN201920328017.8). This technical solution overcomes the above technical problems. However, it only sets the optical fiber clamp on one side of the optical fiber cutter. This clamp setting mode is often determined according to the operator's dominant hand. For example, most people operate with their right hand, so the clamp is set on the left. There are also individual cutters designed for left-handed people, and the clamp is set on the right. Regardless of the setting mode adopted, the current clamps are all set on one side. On the one hand, the clamps set on the one side cannot achieve double-sided feeding. On the other hand, the far end (i.e., the optical fiber outlet end) cannot be effectively fixed. For example: when the clamp is set on the left side, the optical fiber to be cut can only be crossed from the left side to the bottom of the pressure plate assembly. Moreover, the end of the optical fiber on the right side will be to the right of the cutting position. Since there is no base and pressure plate on the right side, the position of the end cannot be effectively positioned, resulting in insufficient fixing effect of the overall optical fiber. Based on the above reasons, this single-sided optical fiber placement and single-sided positioning method limits the processing efficiency to a certain extent. Summary of the invention

[0003] The utility model aims to address the technical defects of the prior art and provide a fiber optic cutter with left and right dual fiber optic clamps and a positioning axis adjustment mechanism, so as to solve the technical problem that the fiber optic clamp is only provided on one side of the fiber optic cutter and the processing efficiency needs to be improved.

[0004] In order to achieve the above technical objectives, the utility model adopts the following technical solutions:

[0005] A fiber optic cutting knife with left and right dual fiber optic clamps and a positioning shaft adjustment mechanism, comprising a base, a pressure plate and a cutting assembly, a cutting groove being opened on the upper end surface of the base, the cutting assembly being arranged in the cutting groove, the pressure plate covering the cutting groove of the base, pressure pads being fixed on both sides of the cutting groove and at corresponding positions of the pressure plate, the base and the pressure plate being rotatably connected via a rotating part, a pressure pad gap adjustment mechanism for adjusting the pressure plate being arranged on the rotating part, the rotating part comprising an axial hole arranged on the base and a rotating shaft passing through the axial hole, pressure plates being arranged at both ends of the rotating shaft and being fastened by fasteners, characterized in that a platform is fixedly connected to the outer side of the base, and fiber optic clamps are arranged on the base and the platform.

[0006] Preferably, the adjustment mechanism comprises a positioning bolt which is arranged along the circumference of the shaft hole and passes through the shaft hole, and the end of the positioning bolt abuts against the rotating shaft.

[0007] The number of positioning bolts is 8, among which the 4 positioning bolts located at the top and bottom adjust the gap between the pressure pads in the up and down directions, and the 4 positioning bolts located at the front and the back adjust the radial parallelism between the gland shaft and the shaft hole (i.e., the left and right sides of the pressure pad are flush). In this preferred technical solution, the four upper and lower positioning screws 6 play the main role in eliminating the gap between the upper and lower pressure pads. In addition, only four upper and lower positioning screws can be set. Although this solution is not the optimal solution of the utility model, it can still be used as an alternative solution for the utility model.

[0008] The positioning bolts are evenly arranged along the circumference of the shaft hole, and there is a gap between the shaft and the shaft hole.

[0009] Principle and process of use: During installation, pass the rotating shaft through the pressure plate and the shaft hole and fasten it with fasteners, then adjust the positioning bolts to make the pressure pads set on the base and the pressure plate fit tightly. Specifically, adjust the positioning bolts in different directions so that there is no light transmission between the pressure pads when the pressure plate is pressed on the base. Optical fiber clamps are set on the base and platform on both sides of the cutting assembly. The double optical fiber clamps on the left and right sides of the cutting assembly can fix the optical fiber.

[0010] It should be noted that, based on the above structural features, all optical fiber cutters that conform to the left and right double clamp structure are within the scope of protection of the present invention, and are not limited to a specific use, processing or assembly method. In addition, the present invention is not limited to the situation of clamping bare fibers, and the design and use scenarios of pressing other types of optical fibers (such as sheathed optical cables, jumper optical cables, optical fibers with PVC protective layers, etc.) are within the scope of protection of the present invention. This is hereby explained.

[0011] The beneficial effect of the utility model is as follows: a platform is arranged on the outside of the base, and a dual optical fiber clamp is arranged using the platform and the base, and the dual optical fiber clamp is maintained on the left and right sides of the cutting assembly, thereby playing a role in positioning the optical fiber on both sides. The dual-sided clamp can not only realize feeding from both sides, but also different optical fibers fed from the same side can be clamped with different clamp glands (the number of clamp glands on the same side is equal to the number of optical fibers clamped on the same side, which is 2 in the attached drawings of this specification), and they do not interfere with each other, and their ends can be positioned by the optical fiber groove of the clamp on the other side, ensuring the fixing effect. Based on the above principles, the utility model fully improves the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic diagram of the structure of an embodiment when the pressing plate is not pressed down;

[0013] Figure 2 It is a schematic diagram of the structure of an embodiment when the pressing plate is pressed down;

[0014] Figure 3 yes Figure 1 Side view of

[0015] Figure 4 yes Figure 3 Schematic diagram of the cross-sectional structure of the middle BB;

[0016] In the figure: 1. base; 2. pressure plate; 3. cutting assembly; 4. pressure pad; 5. rotating shaft; 6. positioning bolt; 7. platform. DETAILED DESCRIPTION

[0017] The specific implementation methods of the present invention will be described in detail below. In order to avoid too many unnecessary details, the well-known structures or functions will not be described in detail in the following examples. The approximate language used in the following examples can be used for quantitative expression, indicating that the quantity can be allowed to change without changing the basic function. Unless otherwise defined, the technical and scientific terms used in the following examples have the same meanings as those generally understood by technicians in the field to which the present invention belongs.

[0018] Example 1

[0019] A fiber optic cutting knife with left and right dual fiber optic clamps and a positioning shaft adjustment mechanism, comprises a base 1, a pressure plate 2 and a cutting assembly 3, a cutting groove is opened on the upper end surface of the base 1, the cutting assembly 3 is arranged in the cutting groove, the pressure plate 2 covers the cutting groove of the base, pressure pads 4 are fixed on both sides of the cutting groove and at corresponding positions of the pressure plate, the base 1 and the pressure plate 2 are rotatably connected through a rotating part, a pressure pad gap adjustment mechanism for adjusting the pressure plate 2 is arranged on the rotating part, the rotating part comprises an axial hole arranged on the base 1 and a rotating shaft 5 passing through the axial hole, pressure plates 2 are arranged at both ends of the rotating shaft 5 and fastened by fasteners, and is characterized in that: a platform 7 is fixedly connected to the outside of the base 1, and optical fiber clamps are arranged on the base 1 and the platform 7.

[0020] Example 2

[0021] A fiber cleaver with left and right double fiber clamps and a positioning shaft adjustment mechanism, comprising a base 1, a pressing plate 2 and a cutting assembly 3, wherein a cutting groove is formed on the upper end surface of the base 1, the cutting assembly 3 is arranged in the cutting groove, the pressing plate 2 covers the cutting groove of the base, and pressure pads 4 are fixed on both sides of the cutting groove and at corresponding positions of the pressing plate, the base 1 and the pressing plate 2 are rotatably connected through a rotating part, and a pressure pad gap adjustment mechanism for adjusting the pressing plate 2 is arranged on the rotating part, the rotating part comprises an axial hole arranged on the base 1 and a rotating shaft 5 passing through the axial hole, and the pressing plates 2 are arranged at both ends of the rotating shaft 5 and fastened by fasteners, characterized in that: a platform 7 is fixedly connected to the outside of the base 1, and a fiber clamp is arranged on the base 1 and the platform 7. The adjustment mechanism comprises a positioning bolt 6 arranged along the circumference of the axial hole and passing through the axial hole, and the end of the positioning bolt 6 abuts against the rotating shaft 5. The number of the positioning bolts 6 is 8, wherein the 4 positioning bolts 6 located at the top and the bottom adjust the pressure pad gap in the up and down direction, and the 4 positioning bolts 6 located at the front and the rear adjust the gland cover axis to be parallel to the radial direction of the axial hole. The positioning bolts 6 are evenly arranged along the circumference of the shaft hole, and there is a gap between the shaft and the shaft hole.

[0022] The embodiments of the present invention are described in detail above, but the contents are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the scope of application of the present invention shall be included in the protection scope of the present invention.

Claims

1. An optical fiber cutting knife with left and right double optical fiber clamps and a positioning shaft adjustment mechanism, comprising a base (1), a pressure plate (2) and a cutting assembly (3), wherein a cutting groove is formed on the upper end surface of the base (1), the cutting assembly (3) is arranged in the cutting groove, the pressure plate (2) covers the cutting groove of the base, and pressure pads (4) are fixed on both sides of the cutting groove and at corresponding positions of the pressure plate, the base (1) and the pressure plate (2) are rotatably connected through a rotating part, and a pressure pad gap adjustment mechanism for adjusting the pressure plate (2) is arranged on the rotating part, the rotating part comprises an axial hole arranged on the base (1) and a rotating shaft (5) passing through the axial hole, and pressure plates (2) are arranged at both ends of the rotating shaft (5) and fastened by fasteners, characterized in that: A platform (7) is fixedly connected to the outside of the base (1), and optical fiber clamps are provided on the base (1) and the platform (7).

2. The optical fiber cleaver with left and right dual optical fiber clamps and a positioning axis adjustment mechanism according to claim 1, characterized in that: The adjustment mechanism comprises a positioning bolt (6) which is arranged along the circumference of the shaft hole and passes through the shaft hole, and the end of the positioning bolt (6) abuts against the rotating shaft (5).

3. The optical fiber cleaver with left and right dual optical fiber clamps and a positioning axis adjustment mechanism according to claim 2, characterized in that: The number of positioning bolts (6) is 8, wherein the 4 positioning bolts (6) located at the top and bottom adjust the pressure pad gap in the up and down directions, and the 4 positioning bolts (6) located at the front and rear adjust the radial parallelism of the pressure cover shaft and the shaft hole.

4. The optical fiber cleaver with left and right dual optical fiber clamps and a positioning axis adjustment mechanism according to claim 2, characterized in that: The positioning bolts (6) are evenly arranged along the circumference of the shaft hole, and there is a gap between the shaft and the shaft hole.

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