WO2018185880A1 - 光ファイバ切断システム - Google Patents
光ファイバ切断システム Download PDFInfo
- Publication number
- WO2018185880A1 WO2018185880A1 PCT/JP2017/014243 JP2017014243W WO2018185880A1 WO 2018185880 A1 WO2018185880 A1 WO 2018185880A1 JP 2017014243 W JP2017014243 W JP 2017014243W WO 2018185880 A1 WO2018185880 A1 WO 2018185880A1
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- WO
- WIPO (PCT)
- Prior art keywords
- optical fiber
- blade member
- cutting system
- fiber cutting
- outer peripheral
- Prior art date
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/25—Preparing the ends of light guides for coupling, e.g. cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
- B26D3/16—Cutting rods or tubes transversely
Definitions
- the present invention relates to an optical fiber cutting system.
- Patent Document 1 discloses a matter of rotating a blade member little by little every time an optical fiber is initially scratched with a disk-shaped blade member (wound blade).
- Patent Document 2 when an end face of an optical fiber after cutting is analyzed by an image analyzer, and it is determined that the cutting performance of a predetermined portion of the blade member is deteriorated based on the analysis result, the contact of the blade member with the optical fiber
- Patent Document 3 discloses a configuration in which an image analysis device that analyzes an end face of an optical fiber after cutting (before connection) is provided in a fusion splicing device that connects optical fibers. In this configuration, when it is determined that the predetermined part of the blade member is worn based on the analysis result of the image analysis apparatus, an instruction to change the part of the blade member that contacts the optical fiber is given to the cutting device including the blade member.
- a configuration for transmitting is disclosed.
- the present invention has been made in view of the above-described circumstances, and an object thereof is to provide an optical fiber cutting system that can use a blade member without waste.
- the optical fiber cutting system according to the present invention is arranged at intervals in the longitudinal direction of the optical fiber, and moves between the pair of clamps for gripping the optical fiber and the outer peripheral edge by moving between the pair of clamps.
- a disk-shaped blade member that contacts and scratches the surface of an optical fiber, the disk-shaped blade member capable of changing the position of the outer peripheral edge contacting the optical fiber, and the optical fiber A pressing member that pushes and bends the wound portion and cuts the optical fiber; and an acquisition unit that acquires position information of the outer peripheral edge that contacts the optical fiber, the acquisition unit including the outer peripheral edge
- the optical fiber cutting system is a sensor that acquires the position information of the outer peripheral edge by detecting the direction of the magnetic lines of force according to the position.
- the blade member can be used without waste.
- FIG. 1 is a block diagram showing an optical fiber cutting system according to the first embodiment.
- FIG. 2 is a perspective view illustrating a configuration example of the optical fiber cutting system according to the first embodiment.
- 3A to 3D are views for explaining a process of scratching the surface of the optical fiber 100 with the blade member 13.
- 4A to 4D illustrate a process of scratching the surface of the optical fiber 100 with the blade member 13 when the relative position between the optical fiber 100 and the blade member 13 is closer than in the case of FIGS. 3A to 3D.
- FIG. 5A to 5C are explanatory diagrams of the magnetic sensor.
- FIG. 5A and FIG. 5B are diagrams illustrating the relationship between the rotational positions of the magnetic sensor and the magnet.
- FIG. 5C is an explanatory diagram of output characteristics of the magnetic sensor.
- FIG. 6A is a perspective view for explaining the rotation unit 50 provided on the blade member 13 side and the sensor-side unit 60 provided on the outer edge position measurement sensor 15 side.
- FIG. 6B is a cross-sectional view for explaining the rotation unit 50 provided on the blade member 13 side and the sensor side unit 60 provided on the outer edge position measurement sensor 15 side.
- FIG. 7 is an exploded explanatory view of the rotation unit 50.
- FIG. 8 is a block diagram showing an optical fiber cutting system according to the second embodiment.
- FIG. 9 is a block diagram showing an optical fiber cutting system according to the third embodiment.
- FIG. 10 is a block diagram illustrating an optical fiber cutting system according to the fourth embodiment.
- FIG. 11 is a block diagram illustrating an optical fiber cutting system according to a fifth embodiment.
- a pair of clamps that are arranged at intervals in the longitudinal direction of the optical fiber and that move between the pair of clamps so that the outer peripheral edge contacts the surface of the optical fiber and is scratched
- a disk-shaped blade member that can change the position of the outer peripheral edge portion that contacts the optical fiber, and the optical fiber by pressing and bending the scratched portion of the optical fiber.
- a pressing member for cutting, and an acquisition unit that acquires position information of the outer peripheral edge portion that contacts the optical fiber, wherein the acquisition unit detects a direction of the lines of magnetic force according to the position of the outer peripheral edge portion.
- the position information is preferably the rotational position of the disk-shaped blade member.
- the disk-shaped blade member is provided with magnetic lines of force in the diameter direction of the disk plane, It is desirable that the acquisition unit acquires the rotation position of the disk-shaped blade member as the position information by detecting the direction of the applied magnetic field lines. Thereby, since the direction of a magnetic force line changes according to the rotation position of a blade member, based on the direction of the magnetic force line which the sensor detected, the rotation position of a blade member can be acquired correctly.
- the blade member is magnetized by applying a strong magnetic field, and the magnetized blade member itself generates the lines of magnetic force. Thereby, a component structure can be simplified.
- a magnet is attached to the blade member, and the magnet generates the lines of magnetic force. Thereby, a blade member and a magnet can be constituted separately.
- the magnet is attached to a fixed part that is fixed to the blade member. Therefore, since the direction of the magnetic force line which a magnet generates changes according to the rotation position of a blade member, based on the direction of the magnetic force line which the sensor detected, the rotation position of a blade member can be acquired correctly.
- the position information is preferably a relative position with respect to the optical fiber in the height direction of the blade member.
- Magnetic field lines are applied in a direction orthogonal to the magnetic field lines, and the acquisition unit acquires the relative position in the height direction of the blade member as the position information by detecting the direction of the applied magnetic field lines.
- the direction of the magnetic lines of force changes according to the rotational position of the screw, the fixed component fixed to the screw, or both of them, and therefore in the height direction of the blade member based on the direction of the magnetic lines of force detected by the sensor.
- the relative position with respect to the optical fiber can be obtained accurately.
- the screw, the fixed part, or both are magnetized by applying a strong magnetic field, and the magnetized object itself generates the magnetic field lines. Thereby, a component structure can be simplified.
- a magnet is attached to the screw, a fixed part fixed to the screw, or both, and the magnet generates the magnetic lines of force.
- the fixed component fixed to the screw and the screw and the magnet can be configured separately.
- the adjustment of the relative position of the blade member with respect to the optical fiber in the height direction is not the adjustment of the position of the blade member in the height direction, but the adjustment of the position in the height direction of the clamp that holds the optical fiber. It is desirable to do. Thereby, the structure of the member moved with a blade member can be reduced in size and simplified.
- FIG. 1 is a block diagram showing an optical fiber cutting system according to the first embodiment.
- FIG. 2 is a perspective view illustrating a configuration example of the optical fiber cutting system according to the first embodiment.
- the optical fiber cutting system 1 acquires the position information of the optical fiber cutting device 2 including the blade member 13 for cutting (cleaving) the optical fiber 100 (optical fiber core wire) and the position of the blade member 13 with respect to the optical fiber 100.
- the optical fiber cutting system 1 of the present embodiment includes a calculation unit 3 that handles position information of the blade member 13, a storage unit 4, and a display unit 5.
- the optical fiber cutting device 2 includes a pair of clamps 11 and 12, a blade member 13, and a pressing member 14.
- the pair of clamps 11 and 12 and the blade member 13 are disposed on the base 17 of the optical fiber cutting device 2.
- the pressing member 14 is also arranged on the base 17 in the same manner.
- the pair of clamps 11 and 12 are arranged at intervals in the longitudinal direction of the optical fiber 100 to grip the optical fiber 100.
- the clamps 11 and 12 include lower clamps 11A and 12A and upper clamps 11B and 12B that sandwich the optical fiber 100 from the vertical direction (vertical direction in FIG. 2).
- Elastic pads 18 (refer to FIG. 3A and FIG. 4A) made of rubber or the like are provided at portions of the lower clamps 11A and 12A and the upper clamps 11B and 12B that face each other (portions that sandwich the optical fiber 100).
- the blade member 13 is formed in a disk shape.
- the blade member 13 is arranged so that its disk plane is orthogonal to the longitudinal direction of the optical fiber 100 (the arrangement direction of the pair of clamps 11 and 12).
- the blade member 13 is movable between the pair of clamps 11 and 12 in a direction perpendicular to the longitudinal direction of the optical fiber 100 with respect to the pair of clamps 11 and 12 and the optical fiber 100 held by the pair of clamps 11 and 12. Yes.
- the blade member 13 is configured such that the outer peripheral edge portion 19 (blade edge) of the blade member 13 contacts the surface of the optical fiber 100 held by the pair of clamps 11 and 12 in the middle of the movement path (while moving). The surface of the fiber 100 is damaged.
- the blade member 13 is rotatable on the blade base 20 around the axis of the blade member 13. Thereby, the position of the outer peripheral edge 19 of the blade member 13 in contact with the optical fiber 100 can be changed.
- the blade member 13 can be switched between a non-rotatable state and a rotatable state by a ratchet mechanism 54 (described later). Thereby, the position of the outer peripheral edge 19 of the blade member 13 in contact with the optical fiber 100 can be appropriately maintained.
- the relative position with the part 19 can be changed.
- the blade member 13 is centered on the axis of the blade member 13 with respect to the blade base 20 arranged on the base 17 so as to be movable in the moving direction of the blade member 13 described above. It is provided rotatably.
- the blade base 20 is a member that slides on the base 17.
- the base 17 is provided with a spring (not shown), the blade base 20 is fired by releasing the compressed spring, and the blade member 13 contacts the optical fiber 100 during the movement of the blade base 20.
- the position (height position) of the blade member 13 in the height direction can be adjusted, and the height of the optical fiber 100 held by the pair of clamps 11 and 12 can be adjusted.
- the position is fixed.
- a mechanism for adjusting the height position of the blade member 13 will be specifically described.
- the blade base 20 includes a base portion 21 and a swinging portion 22 that is swingably connected to the base portion 21.
- An axis (connection axis) that connects the base portion 21 and the swinging portion 22 is parallel to the longitudinal direction of the optical fiber 100.
- the swing part 22 extends in a direction away from the connecting shaft.
- the blade member 13 is provided at a midway portion in the extending direction of the swinging portion 22.
- An adjustment screw 23 that adjusts the height position of the distal end portion of the swinging portion 22 relative to the base portion 21 is attached to the distal end portion of the swinging portion 22 in the extending direction. Thereby, the height position of the blade member 13 can be adjusted.
- a magnet 24 is provided on the head of the adjusting screw 23 (described later). In the present embodiment, the rotation of the blade member 13 and the adjustment of the height position of the blade member 13 are manually adjusted by an operator who handles the optical fiber cutting device 2.
- 3A to 3D are views for explaining a process of scratching the surface of the optical fiber 100 with the blade member 13.
- 4A to 4D illustrate a process of scratching the surface of the optical fiber 100 with the blade member 13 when the relative position between the optical fiber 100 and the blade member 13 is closer than in the case of FIGS. 3A to 3D.
- FIG. When the surface of the optical fiber 100 is scratched (initially scratches the surface of the optical fiber 100) in the optical fiber cutting device 2 including the pair of clamps 11 and 12 and the blade member 13 described above, FIG. As shown in FIGS.
- the outer peripheral edge of the blade member 13 is obtained by moving the blade member 13 in a direction orthogonal to the longitudinal direction of the optical fiber 100 held by the pair of clamps 11 and 12.
- the portion 19 is pressed against the surface of the optical fiber 100.
- the optical fiber 100 positioned between the pair of clamps 11 and 12 is bent by pressing the blade member 13 as shown in FIGS. 3A and 4A.
- a predetermined length in the circumferential direction in the outer peripheral edge portion 19 of the blade member 13 contacts the surface of the optical fiber 100.
- this predetermined length is referred to as “contact length” of the blade member 13 with respect to the optical fiber 100.
- the contact length of the blade member 13 with respect to the optical fiber 100 is indicated by reference numerals CL1 and CL2 in FIGS. 3D and 4D.
- the contact length of the blade member 13 changes according to the relative position between the optical fiber 100 and the blade member 13 in the height direction. For example, as shown in FIGS. 3A to 3D, when the upper end of the blade member 13 is positioned relatively below the optical fiber 100 in the height direction, the bending of the optical fiber 100 is small (the contact pressure is low). The contact length CL1 of the blade member 13 is short. On the other hand, as shown in FIGS. 4A to 4D, when the upper end of the blade member 13 is positioned higher in the height direction than in the case of FIGS. 3A to 3D, the bending of the optical fiber 100 is large (contact). The contact length CL2 of the blade member 13 is increased. When the cutting performance of the outer peripheral edge portion 19 of the blade member 13 is the same, the longer the contact length of the blade member 13, the greater the degree of scratching the surface of the optical fiber 100.
- the pressing member 14 shown in FIG. 2 cuts the optical fiber 100 by bending the scratched portion of the optical fiber 100 after the surface of the optical fiber 100 is scratched by the blade member 13.
- the blade member 13 is rotatable. Therefore, the optical fiber 100 is repeatedly damaged each time with a predetermined (identical) outer peripheral edge portion 19 (a part of the outer peripheral peripheral edge portion 19 in the circumferential direction) of the blade member 13 and / or with a predetermined (identical) contact pressure.
- a predetermined outer peripheral edge portion 19 is worn (including deterioration of the blade tip of the blade member 13 with time, deterioration with time, etc.) and the cutting performance for cutting the optical fiber 100 is lowered
- the blade member 13 is rotated to change the position of the outer peripheral edge 19 of the blade member 13 that contacts the optical fiber 100. Specifically, the blade member 13 is rotated so that another outer peripheral edge portion 19 adjacent to the predetermined outer peripheral edge portion 19 comes into contact with the optical fiber 100 at the time of injury. Thereby, the above-mentioned cutting performance is recovered.
- the relative position between the optical fiber 100 and the blade member 13 in the height direction can be changed.
- the predetermined outer peripheral edge 19 is worn by repeatedly scratching the optical fiber 100 each time with the predetermined (identical) outer peripheral edge 19 and / or the predetermined (identical) contact pressure of the blade member 13.
- the cutting performance for cutting the optical fiber 100 decreases, the relative position between the optical fiber 100 and the blade member 13 in the height direction so that the contact pressure increases (the contact length increases). To change. Thereby, the above-mentioned cutting performance is recovered.
- whether or not the cutting performance is degraded is determined by, for example, an operator confirming the state of the end face of the optical fiber 100 after cutting.
- the acquisition unit 10 acquires position information of the outer peripheral edge 19 of the blade member 13 that contacts the optical fiber 100.
- the acquisition unit 10 of the present embodiment includes an outer edge position measurement sensor 15 that measures a rotation angle (rotation position) of the blade member 13 as position information of the outer peripheral edge portion 19 of the blade member 13 with respect to the optical fiber 100.
- the outer edge position measurement sensor 15 measures the position of the outer peripheral edge portion 19 of the blade member 13 in contact with the optical fiber 100.
- the outer edge position measurement sensor 15 is provided in the optical fiber cutting device 2.
- the outer edge position measurement sensor 15 may continuously measure the rotation angle of the blade member 13 or may discretely measure the rotation angle.
- the number of rotation angles (positions of the outer peripheral edge portion 19) of the blade member 13 to be measured may be appropriately set according to the diameter dimension of the blade member 13, but is 16 in this embodiment. That is, in the present embodiment, the number of positions of the outer peripheral edge portions 19 of the blade member 13 that can be used for cutting the optical fiber 100 in the circumferential direction of the blade member 13 is set to 16.
- the blade base 20 is fired by releasing the compressed spring, and after the blade member 13 comes into contact with the optical fiber 100 during the movement, the blade base 20 receives an impact and stops at the end of the movement range. It will be. For this reason, if a sensor for measuring the rotational position (and height position) of the blade member 13 is provided on the blade base 20, it is difficult to guarantee the wiring of the sensor and the durability of the wiring. For this reason, it is desirable that the sensor for measuring the rotational position of the blade member 13 is provided on the base 17 side instead of moving together with the blade member 13 and the blade base 20.
- a plurality of (16) markers are arranged on the outer edge portion of the blade member 13 at equal intervals in the circumferential direction.
- the rotational position of the blade member 13 is measured by detecting one of the markers using an optical sensor, the position is accurately measured due to the influence of optical fiber cutting waste and coating waste on the detection light of the optical sensor. It may not be possible.
- the outer edge position measurement sensor 15 of the present embodiment measures the rotational position of the blade member 13 using a magnetic sensor that detects magnetism.
- FIG. 5A to 5C are explanatory diagrams of the magnetic sensor.
- FIG. 5A and FIG. 5B are diagrams showing the relationship of the rotational position (rotational angle) between the magnetic sensor and the magnet.
- FIG. 5C is an explanatory diagram of output characteristics of the magnetic sensor.
- the magnet has a disc shape and is magnetized in the diameter direction.
- a disk-shaped magnet is magnetized in the diametrical direction so that one side in a predetermined diametric direction is an N pole and the opposite side is an S pole.
- the magnetic sensor is a so-called magnetic angle sensor.
- the magnetic sensor is a sensor that detects the direction of the lines of magnetic force and outputs a signal corresponding to the direction of the lines of magnetic force.
- the magnetic sensor package is marked.
- the rotational position of the magnetic sensor and the magnet is set to 0 degree (reference angle).
- an angle at which the magnet is rotated counterclockwise from the reference angle with respect to the magnetic sensor is defined as a “rotational position of the magnetic sensor and the magnet”.
- the “rotational position of the magnetic sensor and the magnet” illustrated in FIG. 5B is “90 degrees”.
- the magnetic sensor outputs a signal (output voltage) corresponding to the rotational position of the magnetic sensor and the magnet.
- a signal output voltage
- the output voltage of the magnetic sensor changes linearly.
- the output voltage of the magnetic sensor only needs to be correlated with the rotational position of the magnetic sensor and the magnet, and does not necessarily change linearly.
- FIG. 6A is a perspective view for explaining the rotation unit 50 provided on the blade member 13 side and the sensor side unit 60 provided on the outer edge position measurement sensor 15 side.
- FIG. 6B is a cross-sectional view for explaining the rotation unit 50 provided on the blade member 13 side and the sensor side unit 60 provided on the outer edge position measurement sensor 15 side.
- FIG. 7 is an exploded explanatory view of the rotation unit 50.
- the rotation unit 50 is a mechanism that rotatably holds the blade member 13 and the magnet 51 with respect to the blade base 20.
- the rotation unit 50 is provided in the swing part 22.
- the rotation unit 50 includes a pressing member 52, a rotation shaft 53, and a ratchet mechanism 54 in addition to the blade member 13 and the magnet 51.
- the pressing member 52 is an example of a fixing component for fixing the disk-shaped blade member 13.
- the pressing member 52 is a fixed component that fixes the blade member 13 to the ratchet disc of the ratchet mechanism 54.
- the pressing member 52 has a flange portion 521 and a protruding portion 522.
- the flange portion 521 is a flange-shaped portion for pressing the side surface of the blade member 13.
- the direction of the lines of magnetic force of the magnet 51 is shown on the side surface of the flange portion 521.
- the protruding portion 522 is a portion protruding from the flange portion 521 toward the sensor side.
- a magnet 51 is provided on the surface of the protrusion 522 on the sensor side.
- the magnet 51 has a disc shape and is magnetized in the diametrical direction.
- the ratchet mechanism 54 is a mechanism that holds the blade member 13 so that the blade member 13 can be switched between a non-rotatable state and a rotatable state.
- the ratchet mechanism 54 includes a ratchet disc 541 and a ratchet pawl 542.
- a ratchet gear is formed on the outer periphery of the ratchet disc 541.
- the blade member 13 may be formed of a magnet. Even in this case, since the magnetized blade member 13 generates magnetic lines of force, the outer edge position measuring sensor 15 configured by a magnetic sensor detects the magnetic lines of force generated by the blade member 13 and sets the rotation position of the blade member 13 to the rotational position. A corresponding signal can be output. In this case, the configuration of the pressing member 52 can be simplified.
- the blade member 13 is formed with a fitting hole 13A.
- the ratchet disk 541 has a convex portion 541A, and the convex portion 541A is fitted in the fitting hole 13A of the blade member 13.
- the pressing member 52 is formed with a convex portion 521A (see FIG. 6B), and the convex portion 521A is also fitted in the fitting hole 13A of the blade member 13.
- the sensor side unit 60 is a mechanism that rotatably holds the outer edge position measurement sensor 15 (magnetic sensor).
- the sensor side unit 60 includes a swing member 61 and a sensor rotation shaft 62.
- the swing member 61 is a member that can rotate around the sensor rotation shaft 62 while holding the outer edge position measurement sensor 15 that is a magnetic sensor.
- the rotation position of the swing member 61 is a position where the outer edge position measurement sensor 15 can be opposed to the magnet 51.
- the outer edge position measurement sensor 15 is in a position not facing the magnet 51, as shown in FIG.
- the pressing member 52 provided with the magnet 51 can be removed by rotating the swing member 61 and retracting the outer edge position measurement sensor 15.
- the outer edge position measuring sensor 15 is composed of a magnetic sensor, detects a magnetic force line generated by the magnet 51, and outputs a signal corresponding to the rotational position of the magnet 51. For this reason, even if cutting waste or covering waste of the optical fiber 100 enters between the outer edge position measuring sensor 15 and the magnet 51, the outer edge position measuring sensor 15 is affected by the cutting waste or covering waste of the optical fiber 100. Without receiving, a signal corresponding to the rotational position of the magnet 51 can be output. Even if disturbance light enters from the outside, the outer edge position measurement sensor 15 can output a signal corresponding to the rotational position of the magnet 51 without being affected by the disturbance light. For this reason, the outer edge position measurement sensor 15 can accurately measure the rotational position (rotational position) of the blade member 13. The rotation angle (measured value) of the blade member 13 measured by the outer edge position measurement sensor 15 is output from the outer edge position measurement sensor 15 as an electric signal, for example.
- the acquisition unit 10 of the present embodiment acquires relative position information between the optical fiber 100 and the outer peripheral edge portion 19 of the blade member 13 in the height direction. Specifically, the acquisition unit 10 of the present embodiment measures the position of the outer peripheral edge 19 of the blade member 13 in the height direction (height position of the blade member 13) as the above-described relative position information.
- (Position measuring sensor) 16 is included.
- the contact length measurement sensor 16 is provided in the optical fiber cutting device 2.
- the contact length measurement sensor 16 may continuously measure the height position of the blade member 13, but in the present embodiment, the height position is discretely measured.
- the number of height positions of the blade member 13 to be measured may be arbitrary, but in the present embodiment, it is assumed that there are three “low”, “medium”, and “high”.
- the number of height positions of the blade member 13 that can be used for cutting the optical fiber 100 at the same position of the outer peripheral edge portion 19 is three. Therefore, in this embodiment, the total number of positions of the blade member 13 that can be used for cutting the optical fiber 100 is the number 16 of the positions of the outer peripheral edge portion 19 in the circumferential direction of the blade member 13 and the number of positions of the blade member 13. It becomes 48 places which multiplied several number of height positions.
- the contact length measurement sensor 16 is disposed so as to be able to face the head of the adjustment screw 23 (in FIG. 2, the magnet 24 on the head of the adjustment screw 23 is shown. Sensor 16 is transparent and is shown in dotted lines).
- the adjustment screw 23 is a rotating member for adjusting the height position of the tip portion of the swinging portion 22. When the adjusting screw 23 is rotated, the protrusion amount of the lower end of the adjusting screw 23 from the lower surface of the swinging portion 22 is adjusted, and thereby the height position of the tip end portion of the swinging portion 22 is adjusted. The height position of the member 13 is adjusted.
- a magnet 24 is provided on the head of the adjustment screw 23.
- the head of the adjustment screw 23 is formed in a disk shape, and the adjustment is performed so that the lines of magnetic force are applied in the diameter direction of the disk-shaped head (the direction perpendicular to the rotation axis of the adjustment screw 23).
- the head of the screw 23 is magnetized.
- a magnetic line of force is applied to a fixed part (part rotating with the adjusting screw 23) fixed to the adjusting screw 23 in a direction perpendicular to the rotation axis of the adjusting screw 23.
- magnetic lines of force may be applied to both the adjustment screw 23 and the fixed part fixed to the adjustment screw 23 in a direction perpendicular to the rotation axis of the adjustment screw 23.
- the contact length measurement sensor 16 which is a magnetic sensor, detects a line of magnetic force generated by the magnet 24 at the head of the adjustment screw 23 and outputs a signal corresponding to the rotational position of the magnet 24. For this reason, even if cutting waste or coating waste of the optical fiber 100 enters between the contact length measurement sensor 16 and the adjusting screw 23, the contact length measurement sensor 16 is affected by the cutting waste or coating waste of the optical fiber 100.
- the signal according to the rotational position of the adjusting screw 23 can be output without receiving the signal. Even if ambient light enters from the outside, the contact length measurement sensor 16 can output a signal corresponding to the rotational position of the adjusting screw 23 without being affected by the ambient light. For this reason, the contact length measurement sensor 16 can accurately measure the height position of the blade member 13.
- the height position (measured value) of the blade member 13 measured by the contact length measurement sensor 16 is output from the contact length measurement sensor 16 as an electrical signal, for example.
- the outer edge position measurement sensor 15 and the contact length measurement sensor 16 described above are provided in the optical fiber cutting device 2. As illustrated in FIG. 2, the outer edge position measurement sensor 15 and the contact length measurement sensor 16 are separated from the position where the outer peripheral edge 19 of the blade member 13 is in contact with the optical fiber 100 in the moving direction of the blade member 13 (for example, You may arrange
- the calculation unit 3 shown in FIG. 1 calculates maintenance information regarding the blade member 13 based on the position information acquired by the outer edge position measurement sensor 15 and the contact length measurement sensor 16.
- the maintenance information includes, for example, when the predetermined outer peripheral edge portion 19 of the blade member 13 is worn and the cutting performance for cutting the optical fiber 100 is deteriorated, the next of the outer peripheral edge portion 19 used for cutting the optical fiber 100 Information indicating the position (the outer peripheral edge portion 19 different from the predetermined outer peripheral edge portion 19) and / or the height position of the blade member 13 (hereinafter referred to as “next moving destination position of the blade member 13”), that is, cutting performance Information for recovering may be included.
- the correct use order of a plurality (48 places) of the blade member 13 used for cutting the optical fiber 100 (hereinafter, “the correct use order of the blade member 13”) Information) is used.
- the information is stored in advance in the storage unit 4 described later.
- Procedure A The position (initial position) of the blade member 13 that is used first for cutting the optical fiber 100 is such that the height position of the blade member 13 is “low” and the outer peripheral edge portion 19 in the circumferential direction of the blade member 13. Is the position ("blade height position (blade height): low, position of the outer peripheral edge 19 of the blade member 13 (blade angle): 1")).
- the positions of the outer peripheral edge 19 in the circumferential direction of the blade member 13 are numbered “1”, “2”,..., “16” in the circumferential direction of the blade member 13.
- Procedure B Each time the outer peripheral edge portion 19 of the predetermined number of the blade member 13 that contacts the optical fiber 100 is worn, the blade member 13 is rotated, and “No. 1” ⁇ “No. 2” ⁇ “No. 3” The position of the outer peripheral edge 19 in the circumferential direction of the blade member 13 is changed in the order of “ ⁇ ... ⁇ “ No. 15 ” ⁇ “ No. 16 ”.
- Procedure C When the blade member 13 makes one rotation and returns to “No. 1”, the height position of the blade member 13 is changed from “low” to “medium”. That is, after using the position of “blade height: low, blade angle: No. 16” in the blade member 13, the position of “blade height: medium, blade angle: No. 1” is used.
- Procedure D With the height position of the blade member 13 held at “medium”, “No. 1” ⁇ “No. 2” ⁇ “No. 3” ⁇ . The position of the outer peripheral edge portion 19 in the circumferential direction of the blade member 13 is changed in the order of “No.” ⁇ “No. 16”.
- Step E When the blade member 13 makes one rotation and returns to “No.
- the maintenance information may include information indicating the degree of wear of the blade member 13, for example.
- the degree of wear of the blade member 13 is, for example, a blade member that has been used for cutting the optical fiber 100 at the present time, with the total number (48 locations) of the blade member 13 that can be used for cutting the optical fiber 100 as a denominator. This is the ratio of the number of positions 13 as a molecule. For example, when the number of used blade members 13 is 36, the degree of wear of the blade members 13 is 75%.
- the maintenance information may include, for example, information indicating the remaining life of the blade member 13.
- the remaining life of the blade member 13 is, for example, the total number (48 locations) of the blade member 13 that can be used for cutting the optical fiber 100 as a denominator, and the blade member that is not currently used for cutting the optical fiber 100 This is the ratio of the number of positions 13 as a molecule. For example, when the number of positions of the unused blade member 13 is 12, the remaining life of the blade member 13 is 25%.
- the maintenance information may include, for example, information (for example, after 42 days) indicating the estimated replacement time of the blade member 13.
- the information indicating the estimated replacement time of the blade member 13 may be calculated based on an estimated value of the number of positions of the blade member 13 used for one day, for example.
- the storage unit 4 stores the position information of the blade member 13 relative to the optical fiber 100 and the maintenance information described above. In addition, the storage unit 4 stores information such as the above-described “correct use order of the blade members 13” and the total number of positions of the blade members 13 that can be used for cutting the optical fiber 100 (48 locations). . Various information stored in the storage unit 4 may be appropriately read out by the calculation unit 3.
- the display unit 5 displays the position information and maintenance information of the blade member 13.
- the display unit 5 includes, for example, the current position information of the blade member 13, the correct position information of the current blade member 13 calculated by the calculation unit 3, and the “next movement destination position of the blade member 13 calculated by the calculation unit 3. ”, Information for warning the operator that a movement error has occurred, information on the remaining life of the blade member 13 calculated by the calculation unit 3, information for notifying the operator of replacement of the blade member 13, etc. Is mentioned.
- the position information of the blade member 13 displayed on the display unit 5 includes information indicating the position of the outer peripheral edge portion 19 in the circumferential direction of the blade member 13 and information indicating the height position of the blade member 13.
- the display method (numeric display, graphic display, etc.) of various information displayed on the display unit 5 may be arbitrary. In addition, operation buttons and the like may be displayed on the display unit 5.
- the acquisition unit 10 acquires the positional information of the outer peripheral edge 19 of the blade member 13 that contacts the optical fiber 100, thereby The position of the outer peripheral edge portion 19 of the blade member 13 can be accurately grasped. For this reason, it can suppress suitably that the movement mistake of the blade member 13 generate
- the acquisition unit 10 acquires the position information of the outer peripheral edge portion 19 by detecting the direction of the lines of magnetic force according to the position of the outer peripheral edge portion 19 of the blade member 13. Sensors (outer edge position measurement sensor 15 and contact length measurement sensor 16). Thereby, since the positional information on the outer peripheral edge 19 can be acquired without being affected by the cutting waste or covering waste of the optical fiber 100 or the influence of ambient light, the position of the outer peripheral edge 19 of the blade member 13 is accurately determined. Can grasp.
- the position information of the outer peripheral edge 19 acquired by the acquiring unit 10 is the rotation angle (rotation position) of the disk-shaped blade member 13.
- the rotation angle of the blade member 13 (the position of the outer peripheral edge portion 19 of the blade member 13 in contact with the optical fiber 100) can be accurately grasped.
- a magnet 51 is attached to the blade member 13, and the magnet 51 generates lines of magnetic force.
- the material of the blade member 13 is There are fewer restrictions.
- the blade member 13 may be magnetized by applying a strong magnetic field, and the magnetized blade member 13 itself may generate lines of magnetic force. In this case, the component configuration can be simplified.
- the magnet 51 is attached to a pressing member 52 that is an example of a fixed component that is fixed to the blade member 13.
- the magnet 51 can be rotated according to the rotational position of the blade member 13, the direction of the lines of magnetic force changes according to the rotational position of the blade member 13. Based on the detected direction of the lines of magnetic force, the rotational position of the blade member 13 can be accurately acquired.
- the magnet 51 may be attached to a member different from the pressing part 52 because it may be attached to a fixed part fixed to the blade member 13.
- the position information of the outer peripheral edge portion 19 acquired by the acquisition unit 10 is a relative position with respect to the optical fiber 100 in the height direction of the blade member 13.
- the acquisition unit 10 includes a contact length measurement sensor 16 that measures the position of the outer peripheral edge 19 of the blade member 13 in the height direction as relative position information. This makes it possible to accurately grasp the relative position between the optical fiber 100 and the blade member 13 in the height direction (the height position of the blade member 13).
- the contact length measurement sensor 16 is a magnetic sensor, the light in the height direction of the blade member 13 is not affected by the influence of cutting waste or coating waste of the optical fiber 100, disturbance light, or the like.
- Position information of the outer peripheral edge portion 19 that detects a relative position with respect to the fiber 100 can be acquired.
- the optical fiber cutting system 1 of the present embodiment includes an adjustment mechanism that adjusts the relative position of the blade member 13 with respect to the optical fiber 100 in the height direction according to the rotational position of the adjustment screw 23.
- the adjustment screw 23 (or both of the fixed part fixed to the adjustment screw 23 or both of the adjustment screw 23 and the fixed part fixed to the adjustment screw 23) is orthogonal to the rotation axis of the adjustment screw 23.
- the magnetic force lines are applied in the direction of movement, and the acquisition unit 10 (contact length measurement sensor 16) detects the direction of the applied magnetic force lines, thereby determining the relative position of the blade member 13 with respect to the optical fiber 100 in the height direction. get. Thereby, the height position of the blade member 13 can be accurately grasped.
- the adjustment screw 23 (or both of the fixed component fixed to the adjustment screw 23 or both the adjustment screw 23 and the fixed component fixed to the adjustment screw 23) is magnetized by applying a strong magnetic field.
- the magnetized object for example, the adjusting screw 23
- the magnetized object itself generates magnetic lines of force.
- a component structure can be simplified.
- a magnet is attached to the adjustment screw 23 (or both of the fixed part fixed to the adjustment screw 23 or the fixed part fixed to the adjustment screw 23 and the adjustment screw 23), and the magnet generates lines of magnetic force. Also good.
- the adjustment screw 23 and the magnet are separate from each other, so that there are fewer restrictions on the material of the adjustment screw 23 and the like.
- the optical fiber cutting system 1 of the present embodiment in addition to the acquisition unit 10 that acquires the position information of the outer peripheral edge portion 19 of the blade member 13 with respect to the optical fiber 100, the calculation unit 3, the storage unit 4, and the display unit 5, it is possible to notify the operator of “the next movement destination position of the blade member 13”. For this reason, generation
- production of the movement mistake of the blade member 13 by an operator can further be suppressed.
- the acquisition unit 10, the calculation unit 3, the storage unit 4, and the display unit 5 are provided, so that the degree of wear of the blade member 13, the remaining life, the estimated replacement time, the replacement It is also possible to notify the operator of maintenance information such as instructions. For this reason, the replacement preparation of the blade member 13 can be performed appropriately.
- the unused blade member 13 can be prepared in advance when the degree of wear of the blade member 13 is close to 100% (the remaining life is close to 0%) or the replacement time of the blade member 13 is approaching. In other words, it is not necessary to always carry the unused blade member 13, and the handling of the optical fiber cutting device 2 becomes easy.
- the calculation unit 3, the storage unit 4, and the display that handle the positional information of the blade member 13 acquired by the acquisition unit 10 and the maintenance information calculated based on the positional information.
- the unit 5 is provided in the optical fiber cutting device 2. For this reason, compared with the case where the calculating part 3, the memory
- movement (for example, movement of a gaze) can be suppressed to the minimum. That is, the operator can easily handle the optical fiber cutting system 1.
- the optical fiber cutting system 1A of the present embodiment is similar to the first embodiment in that the optical fiber cutting device 2A, the outer edge position measuring sensor 15, the contact length measuring sensor 16, the computing unit 3, and the storage unit. 4 and a display unit 5.
- the configuration of the optical fiber cutting device 2A may be the same as that of the optical fiber cutting device 2 of the first embodiment.
- the outer edge position measurement sensor 15 and the contact length measurement sensor 16 are provided in the optical fiber cutting device 2A as in the first embodiment.
- the functions of the calculation unit 3, the storage unit 4, and the display unit 5 are the same as those in the first embodiment.
- the position information of the blade member 13 (the rotation angle of the blade member 13 and the height position of the blade member 13) measured by the outer edge position measurement sensor 15 and the contact length measurement sensor 16. Is transmitted to an external device 6A separate from the optical fiber cutting device 2A. That is, the optical fiber cutting device 2A of the present embodiment includes a transmission unit 31A that transmits the position information of the blade member 13 output from the outer edge position measurement sensor 15 and the contact length measurement sensor 16 to the external device 6A.
- the external device 6A may be, for example, a fusion splicing device that connects the optical fibers 100 (optical fiber cores), and handles position information of the blade member 13 such as a mobile phone, a personal computer, or a cloud data server. It can be any device that can.
- the external device 6A includes a receiving unit (not shown) that receives position information of the blade member 13 transmitted from the optical fiber cutting device 2A.
- the line for transmitting information from the optical fiber cutting device 2A to the external device 6A may be wireless or wired.
- the arithmetic unit 3, the storage unit 4 and the display unit 5 are provided in the external device 6A. For this reason, calculation, storage, and display of maintenance information and the like based on the position information of the blade member 13 are performed by the external device 6A.
- the optical fiber cutting system 1A of the present embodiment has the same effects as those of the first embodiment. Furthermore, according to the optical fiber cutting system 1A of the present embodiment, the calculation unit 3, the storage unit 4, and the display unit 5 are provided in the external device 6A. For this reason, compared with the optical fiber cutting system 1 of 1st Embodiment, size reduction and cost reduction of 2 A of optical fiber cutting devices can be achieved. Further, since the optical fiber cutting device 2A is small, the optical fiber cutting device 2A can be easily carried, and is particularly effective for use of the optical fiber cutting device 2A outdoors.
- the optical fiber cutting system 1B of the present embodiment is similar to the first embodiment in that the optical fiber cutting device 2B, the outer edge position measuring sensor 15, the contact length measuring sensor 16, the computing unit 3, and the storage unit. 4 and a display unit 5.
- the configuration of the optical fiber cutting device 2B may be the same as that of the optical fiber cutting device 2 of the first embodiment.
- the outer edge position measuring sensor 15 and the contact length measuring sensor 16 are provided in the optical fiber cutting device 2B as in the first embodiment.
- the functions of the calculation unit 3, the storage unit 4, and the display unit 5 are the same as those in the first embodiment.
- the position information of the blade member 13 measured by the outer edge position measurement sensor 15 and the contact length measurement sensor 16 and the maintenance information calculated based on the position information of the blade member 13 are used. Is transmitted to an external device 6B separate from the optical fiber cutting device 2B. That is, the optical fiber cutting device 2B according to the present embodiment includes the transmission unit 31A similar to that of the second embodiment. A specific example of the external device 6B may be the same as that illustrated in the second embodiment.
- storage part 4 are provided in the optical fiber cutting device 2B, and the display part 5 is provided in the external device 6B. For this reason, only the information displayed on the display unit 5 among the positional information and maintenance information of the blade member 13 is transmitted from the optical fiber cutting device 2B to the external device 6B.
- the optical fiber cutting system 1B of this embodiment has the same effects as those of the first and second embodiments. Furthermore, according to the optical fiber cutting system 1B of the present embodiment, since the display unit 5 is provided in the external device 6B, the optical fiber cutting device 2B is compared with the optical fiber cutting system 1 of the first embodiment. Miniaturization and cost reduction can be achieved.
- the optical fiber cutting system 1C of the present embodiment is similar to the first embodiment in that the optical fiber cutting device 2C, the outer edge position measuring sensor 15, the contact length measuring sensor 16, the computing unit 3, and the storage unit. 4 and a display unit 5.
- the configuration of the optical fiber cutting device 2C may be the same as that of the optical fiber cutting device 2 of the first embodiment.
- the outer edge position measurement sensor 15 and the contact length measurement sensor 16 are provided in the optical fiber cutting device 2C as in the first embodiment.
- the functions of the calculation unit 3, the storage unit 4, and the display unit 5 are the same as those in the first embodiment.
- the position information of the blade member 13 measured by the outer edge position measuring sensor 15 and the contact length measuring sensor 16 is used as the optical fiber cutting device 2C. Transmits to a separate external device 6C. That is, the optical fiber cutting device 2C of the present embodiment includes a transmission unit 31A similar to that of the second embodiment. A specific example of the external device 6C may be the same as that illustrated in the second embodiment.
- storage part 4 are provided in the external device 6C, and the display part 5 is provided in the optical fiber cutting device 2C. For this reason, calculation and storage of maintenance information and the like based on the position information of the blade member 13 are performed by the external device 6C.
- Information displayed on the display unit 5 among the positional information and maintenance information of the blade member 13 is transmitted from the external device 6C to the optical fiber cutting device 2C. That is, the external device 6C is provided with a transmission unit (not shown) for transmitting information to be displayed on the display unit 5 to the optical fiber cutting device 2C.
- the optical fiber cutting device 2C is provided with a receiving unit (not shown) for receiving information to be displayed on the display unit 5.
- the optical fiber cutting system 1C of this embodiment has the same effects as those of the first and second embodiments. Furthermore, according to the optical fiber cutting system 1C of the present embodiment, since the calculation unit 3 and the storage unit 4 are provided in the external device 6C, compared with the optical fiber cutting system 1 of the first embodiment, It is possible to reduce the size and cost of the optical fiber cutting device 2C.
- the optical fiber cutting system 1D of the present embodiment is similar to the first embodiment in that the optical fiber cutting device 2D, the outer edge position measuring sensor 15, the contact length measuring sensor 16, the computing unit 3, and the storage unit. 4 and a display unit 5.
- the functions of the calculation unit 3, the storage unit 4, and the display unit 5 are the same as those in the first embodiment.
- the optical fiber cutting device 2D of the present embodiment by adjusting the height position of the optical fiber 100 with respect to the blade member 13, the relative position between the optical fiber 100 and the blade member 13 in the height direction is adjusted.
- the contact length of the blade member 13 is adjusted.
- An adjustment screw 25 is attached to the base 17.
- the adjusting screw 25 is a rotating member for adjusting the height position of the clamps 11 and 12 (gripping portions that grip the optical fiber 100).
- a magnet 26 is provided on the head of the adjustment screw 25.
- the head of the adjustment screw 25 is formed in a disk shape, and the adjustment is performed so that the lines of magnetic force are applied in the diameter direction of the disk-shaped head (the direction perpendicular to the rotation axis of the adjustment screw 25).
- the head of the screw 25 is magnetized.
- a magnetic line of force is applied to the fixed part (part rotating with the adjustment screw 25) fixed to the adjustment screw 25 in a direction perpendicular to the rotation axis of the adjustment screw 25.
- magnetic lines of force may be applied to both the adjustment screw 25 and the fixed part fixed to the adjustment screw 25 in a direction perpendicular to the rotation axis of the adjustment screw 25.
- the contact length measurement sensor 16 which is a magnetic sensor, detects magnetic lines generated by the magnet 26 at the head of the adjustment screw 25 and outputs a signal corresponding to the rotational position of the magnet 26. For this reason, even if cutting waste or coating waste of the optical fiber 100 enters between the contact length measurement sensor 16 and the adjusting screw 25, the contact length measurement sensor 16 is affected by the cutting waste or coating waste of the optical fiber 100.
- the signal according to the rotational position of the adjusting screw 23 can be output without receiving the signal. Even if ambient light enters from the outside, the contact length measurement sensor 16 can output a signal corresponding to the rotational position of the adjusting screw 25 without being affected by the ambient light. For this reason, the contact length measurement sensor 16 can accurately measure the height position of the optical fiber 100 with respect to the blade member 13 (relative position between the optical fiber 100 and the blade member 13 (or the outer peripheral edge portion 19) in the height direction). .
- the adjustment of the relative position of the blade member 13 with respect to the optical fiber 100 in the height direction is not the adjustment of the position of the blade member 13 in the height direction as in the above-described embodiment, but the optical fiber 100 is gripped. This is done by adjusting the position of the clamps 11 and 12 in the height direction.
- the blade base 20 since the height position of the blade member 13 does not need to be adjusted, the blade base 20 does not include the oscillating portion 22, and the blade member 13 includes the base portion 21. It is provided in the middle of the extending direction.
- the rotation unit 50 rotatably holds the blade member 13 and the magnet 51 with respect to the blade base 20.
- the optical fiber cutting system 1D of this embodiment has the same effects as those of the first embodiment. Furthermore, according to the optical fiber cutting system 1D of the present embodiment, since the oscillating portion 22 does not have to be provided on the blade base 20, compared with the optical fiber cutting system 1 of the first embodiment, the blade member 13 is provided. The structure of the blade 20 to be moved can be reduced in size and simplified.
- the storage unit 4 may be provided in the optical fiber cutting devices 2A and 2C. That is, the maintenance information calculated by the calculation unit 3 of the external devices 6A and 6C may be transmitted to the optical fiber cutting devices 2A and 2C and stored in the storage unit 4 of the optical fiber cutting devices 2A and 2C.
- the calculation unit 3, the storage unit 4, and the display unit 5 are optical fibers. It may be provided in both the cutting devices 2A to 2C and the external devices 6A to 6C.
- the upper part of the “correct use order of blade members” stored in advance in the storage unit 4 is not limited to that described in the above embodiment, and may be arbitrarily set.
- the warning to the operator is not limited to being displayed on the display unit 5.
- the sound may be emitted from a speaker or the like.
- the calculation unit 3 can calculate the degree of wear and the remaining life of the blade member 13 based on, for example, the acquired position information and the number of times the optical fiber 100 has been damaged. As a result, the degree of wear of the blade member 13 and the remaining life information can be transmitted to the operator more finely than in the case of the above embodiment.
- the optical fiber cutting device may include an image analysis device that analyzes the state of the end face of the optical fiber after being cut.
- an image analysis device that analyzes the state of the end face of the optical fiber after being cut.
- the blade for the optical fiber 100 is used.
- An instruction to change the position of the member 13 can be displayed on the display unit 5.
- the position of the blade member 13 relative to the optical fiber 100 is not limited to an optical fiber cutting device that is manually operated by an operator.
- the position of the blade member 13 relative to the optical fiber 100 is automatically changed by a motor or the like. It is also applicable to the device.
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Abstract
Description
特許文献1には、円板状の刃部材(加傷刃)で光ファイバに初期傷をつける毎に、刃部材を少しずつ回転させる事項が開示されている。
特許文献2には、切断後の光ファイバの端面を画像分析装置により分析し、分析結果に基づいて刃部材の所定部位の切断性能が低下したと判断した場合に、光ファイバに対する刃部材の接触部位を自動的に変更する事項が開示されている。
特許文献3には、光ファイバ同士を接続する融着接続装置に、切断後(接続前)の光ファイバの端面を分析する画像分析装置を設けた構成が開示されている。この構成では、画像分析装置の分析結果に基づいて刃部材の所定部位が摩耗したと判断した場合に、光ファイバに接触する刃部材の部位を変更すべき指示を、刃部材を含む切断装置に送信する構成が開示されている。
前記取得部は、付与された前記磁力線の方向を検出することにより、円板状の前記刃部材の回転位置を前記位置情報として取得することが望ましい。これにより、刃部材の回転位置に応じて磁力線の方向が変化するため、センサの検知した磁力線の方向に基づいて、刃部材の回転位置を正確に取得できる。
図1は、第1実施形態の光ファイバ切断システムを示すブロック図である。図2は、第1実施形態の光ファイバ切断システムの構成例を示す斜視図である。
光ファイバ切断システム1は、光ファイバ100(光ファイバ心線)を切断(劈開)するための刃部材13を含む光ファイバ切断装置2と、光ファイバ100に対する刃部材13の位置情報を取得する取得部10とを備える。また、本実施形態の光ファイバ切断システム1は、刃部材13の位置情報を取り扱う演算部3、記憶部4及び表示部5を備える。
刃部材13は、その移動経路の途中(移動途中)において刃部材13の外周縁部19(刃先)が1対のクランプ11,12に把持された光ファイバ100の表面に接触することで、光ファイバ100の表面を加傷する。
また、図2に例示する光ファイバ切断装置2では、高さ方向における刃部材13の位置(高さ位置)が調整可能とされ、1対のクランプ11,12で把持された光ファイバ100の高さ位置は固定されている。以下、刃部材13の高さ位置を調整する機構について具体的に説明する。
本実施形態において、刃部材13の回転や刃部材13の高さ位置の調整は、光ファイバ切断装置2を扱う作業者によって手動で調整される。
上記した1対のクランプ11,12および刃部材13を含む光ファイバ切断装置2において、光ファイバ100の表面を加傷する(光ファイバ100の表面に初期傷をつける)際には、図3B~図3D及び図4B~図4Dに示すように、刃部材13を1対のクランプ11,12によって把持された光ファイバ100の長手方向に直交する方向に移動させることで、刃部材13の外周縁部19を光ファイバ100の表面に押し付ける。
この際、1対のクランプ11,12の間に位置する光ファイバ100は、図3A及び図4Aに示すように、刃部材13の押し付けによって撓む。これにより、刃部材13の外周縁部19のうち周方向の所定長さが、光ファイバ100の表面に接触する。以下の説明では、この所定長さを、光ファイバ100に対する刃部材13の「接触長」と呼ぶ。光ファイバ100に対する刃部材13の接触長は、図3D及び図4Dにおいて符号CL1,CL2で示している。
上記説明において、切断性能が低下しているか否かは、例えば作業者が切断後の光ファイバ100の端面の状態を確認して判断する。
本実施形態の取得部10は、光ファイバ100に対する刃部材13の外周縁部19の位置情報として、刃部材13の回転角度(回転位置)を測定する外縁位置測定センサ15を含む。言い換えれば、外縁位置測定センサ15は、光ファイバ100に接触する刃部材13の外周縁部19の位置を測定する。本実施形態において、外縁位置測定センサ15は、光ファイバ切断装置2に設けられている。
外縁位置測定センサ15は、刃部材13の回転角度を連続的に測定しても良いが、回転角度を離散的に測定しても良い。測定される刃部材13の回転角度(外周縁部19の位置)の数は、刃部材13の径寸法に応じて適宜設定されてよいが、本実施形態では16個とする。すなわち、本実施形態では、刃部材13の周方向に並び、光ファイバ100の切断に用いることが可能な刃部材13の外周縁部19の位置の数を16箇所とする。
加えて、仮に刃部材13の外縁部分に周方向に等間隔で複数(16個)のマーカー(光を反射する反射板、若しくは光の透過する貫通孔)を配列させ、外縁位置測定センサ15が光センサを利用してマーカーの一つを検出することで、刃部材13の回転位置を測定する場合、光ファイバの切断屑や被覆屑が光センサの検出光に与える影響により、正確に位置測定できないおそれがある。また、光センサを利用して刃部材13の回転位置を測定する場合、装置の外部から外乱光が入り込むことにより、正確に位置測定できないおそれもある。そこで、本実施形態の外縁位置測定センサ15は、磁気を検知する磁気センサを利用して、刃部材13の回転位置を測定する。
接触長測定センサ16は、刃部材13の高さ位置を連続的に測定しても良いが、本実施形態では高さ位置を離散的に測定する。測定される刃部材13の高さ位置の数は任意であってよいが、本実施形態では「低」、「中」、「高」の3つとする。すなわち、本実施形態では、同一の外周縁部19の位置において、光ファイバ100の切断に用いることが可能な刃部材13の高さ位置の数を3箇所とする。
したがって、本実施形態では、光ファイバ100の切断に用いることが可能な刃部材13の位置の総数が、刃部材13の周方向における外周縁部19の位置の数16箇所と、刃部材13の高さ位置の数3箇所とを掛け合わせた48箇所となる。
外縁位置測定センサ15、接触長測定センサ16は、図2に例示するように、刃部材13の外周縁部19が光ファイバ100と接触する位置から刃部材13の移動方向に離れた位置(例えば待機位置)に配された状態で刃部材13の位置情報を取得するように、基台17上に配置されてよい。この場合、外縁位置測定センサ15、接触長測定センサ16から延びる電気配線(不図示)の配置等を容易に設定できる。
また、外縁位置測定センサ15、接触長測定センサ16は、例えば刃台20のベース部21上に配されてもよい。この場合、刃部材13の移動方向の任意の位置において、刃部材13の位置情報を取得することが可能となる。
保守情報には、例えば、刃部材13の所定の外周縁部19が摩耗して光ファイバ100を切断するための切断性能が低下した際、次に光ファイバ100の切断に用いる外周縁部19の位置(所定の外周縁部19とは別の外周縁部19)および/または刃部材13の高さ位置(以下、「刃部材13の次回移動先位置」と呼ぶ)を示す情報、すなわち切断性能を回復させるための情報が含まれてよい。
「刃部材13の次回移動先位置」の演算には、光ファイバ100の切断に用いる刃部材13の複数(48箇所)の位置の正しい使用順序(以下、「刃部材13の正しい使用順序」と呼ぶ)を示す情報を利用する。当該情報は、予め後述の記憶部4に記憶されている。
手順A:最初に光ファイバ100の切断に使用する刃部材13の位置(初期位置)は、刃部材13の高さ位置を「低」とし、かつ、刃部材13の周方向における外周縁部19の位置を「1番」とした位置(「刃の高さ位置(刃高さ):低、刃部材13の外周縁部19の位置(刃角度):1番」)とする。刃部材13の周方向における外周縁部19の位置は、刃部材13の周方向に「1番」、「2番」・・・「16番」の番号が付されているものとする。
手順B:その上で、光ファイバ100に接触する刃部材13の所定番号の外周縁部19が摩耗する毎に、刃部材13を回転させ、「1番」→「2番」→「3番」→・・・→「15番」→「16番」の順番で刃部材13の周方向における外周縁部19の位置を変更する。
手順D:刃部材13の高さ位置を「中」に保持した状態で、上記「手順B」と同様に、「1番」→「2番」→「3番」→・・・→「15番」→「16番」の順番で刃部材13の周方向における外周縁部19の位置を変更する。
手順E:刃部材13が1回転して「1番」に戻った際には、上記「手順C」と同様にして、刃部材13の位置を「刃高さ:中、刃角度:16番」から「刃高さ:高、刃角度:1番」に変更する。
手順F:刃部材13の高さ位置を「高」に保持した状態で、上記「手順B」と同様に、「1番」→「2番」→「3番」→・・・→「15番」→「16番」の順番で刃部材13の周方向における外周縁部19の位置を変更し、「刃高さ:高、刃角度:16番」での使用が完了した(切断性能が低下した)段階で、刃部材13自体の使用を終わらせる。
特に、本実施形態の光ファイバ切断システム1では、取得部10は、刃部材13の外周縁部19の位置に応じた磁力線の方向を検出することにより、外周縁部19の位置情報を取得するセンサ(外縁位置測定センサ15及び接触長測定センサ16)である。これにより、光ファイバ100の切断屑や被覆屑の影響や、外乱光の影響などを受けずに、外周縁部19の位置情報を取得できるため、刃部材13の外周縁部19の位置を正確に把握できる。
なお、本実施形態では、刃部材13には、磁石51が取り付けられており、磁石51が磁力線を発生させている。このため、本実施形態では、刃部材13と磁石51とが別体であるため、刃部材13を着磁させて刃部材13そのものが磁力線を発生させる構成と比べると、刃部材13の材質の制約は少なくて済む。但し、刃部材13が強磁界の印加により着磁されており、着磁された刃部材13そのものが磁力線を発生させてもよい。この場合、部品構成を簡略化できる。
なお、本実施形態では、調整ネジ23(若しくは、調整ネジ23に固定した固定部品、又は、調整ネジ23及び調整ネジ23に固定した固定部品の両方)は、強磁界の印加により着磁されており、着磁された物(例えば調整ネジ23)そのものが磁力線を発生させている。このため、部品構成を簡略化できる。但し、調整ネジ23(若しくは、調整ネジ23に固定した固定部品、又は、調整ネジ23及び調整ネジ23に固定した固定部品の両方)に磁石が取り付けられており、その磁石が磁力線を発生させてもよい。これにより、調整ネジ23等と磁石とが別体であるため、調整ネジ23等の材質の制約が少なくて済む。
また、仮に作業者による刃部材13の移動ミスが発生しても、移動ミスの旨を作業者に通知(警告)することも可能となる。このため、作業者による刃部材13の移動ミスの発生をさらに抑制できる。
次に、第2実施形態について、図8を参照して第1実施形態との相違点を中心に説明する。なお、第1実施形態と共通する構成については、同一符号を付し、その説明を省略する。
外部装置6Aは、光ファイバ切断装置2Aから送信された刃部材13の位置情報を受信する受信部(不図示)を備える。情報を光ファイバ切断装置2Aから外部装置6Aに送信する回線は、無線であってもよいし、有線であってもよい。
さらに、本実施形態の光ファイバ切断システム1Aによれば、演算部3、記憶部4、表示部5が、上記の外部装置6Aに設けられている。このため、第1実施形態の光ファイバ切断システム1と比較して、光ファイバ切断装置2Aの小型化、低コスト化を図ることができる。また、光ファイバ切断装置2Aが小型となることで、光ファイバ切断装置2Aの持ち運びが容易となり、特に屋外における光ファイバ切断装置2Aの使用に有効となる。
次に、第3実施形態について、図9を参照して第1、第2実施形態との相違点を中心に説明する。なお、第1、第2実施形態と共通する構成については、同一符号を付し、その説明を省略する。
外部装置6Bの具体例は、第2実施形態において例示したものと同様であってよい。
さらに、本実施形態の光ファイバ切断システム1Bによれば、表示部5が外部装置6Bに設けられているため、第1実施形態の光ファイバ切断システム1と比較して、光ファイバ切断装置2Bの小型化、低コスト化を図ることができる。
次に、第4実施形態について、図10を参照して第1、第2実施形態と相違点を中心に説明する。なお、第1、第2実施形態と共通する構成については、同一符号を付し、その説明を省略する。
外部装置6Cの具体例は、第2実施形態において例示したものと同様であってよい。
また、刃部材13の位置情報や保守情報のうち表示部5に表示する情報が、外部装置6Cから光ファイバ切断装置2Cに送信される。すなわち、外部装置6Cには、表示部5に表示する情報を光ファイバ切断装置2Cに送信するための送信部(不図示)が設けられる。また、光ファイバ切断装置2Cには、表示部5に表示する情報を受信するための受信部(不図示)が設けられる。
さらに、本実施形態の光ファイバ切断システム1Cによれば、演算部3及び記憶部4が上記の外部装置6Cに設けられているため、第1実施形態の光ファイバ切断システム1と比較して、光ファイバ切断装置2Cの小型化、低コスト化を図ることができる。
次に、第5実施形態について、図11を参照して第1実施形態と相違点を中心に説明する。なお、第1実施形態と共通する構成については、同一符号を付し、その説明を省略する。
以上、本発明の詳細について説明したが、本発明は上述した実施形態に限定されるものではなく、本発明の主旨を逸脱しない範囲において種々の変更を加えることができる。
2 、2A、2B、2C 光ファイバ切断装置、
3 演算部、4 記憶部、5 表示部、
6A、6B、6C 外部装置、
10 取得部、11、12 クランプ、
13 刃部材、13A 嵌合穴、14 押し当て部材、
15 外縁位置測定センサ(磁気センサ)、
16 接触長測定センサ(磁気センサ)、
17 基台、18 弾性パッド、19 外周縁部、
20 刃台、21 ベース部、22 揺動部、
23 調整ネジ、24 磁石、
25 調整ネジ、26 磁石、
31A 送信部、
50 回転ユニット、51 磁石、52 押さえ部材(固定部品の一例)、
521 フランジ部、521A 凸部、522 突出部、
53 回転軸、54 ラチェット機構、
541 ラチェット円板、541A 凸部、
542 ラチェット爪、
60 センサ側ユニット、61 揺動部材、
62 センサ用回転軸、
100 光ファイバ
Claims (11)
- 光ファイバの長手方向に間隔をあけて配され、前記光ファイバを把持する1対のクランプと、
前記1対のクランプ間を移動させて外周縁部を前記光ファイバの表面に接触させて加傷する円板状の刃部材であって、前記光ファイバに接触する前記外周縁部の位置を変更可能な円板状の前記刃部材と、
前記光ファイバの加傷部を押し曲げて光ファイバを切断する押し当て部材と、
前記光ファイバに接触する前記外周縁部の位置情報を取得する取得部と、
を備え、
前記取得部は、前記外周縁部の位置に応じた磁力線の方向を検出することにより、前記外周縁部の前記位置情報を取得するセンサであることを特徴とする光ファイバ切断システム。 - 請求項1に記載の光ファイバ切断システムであって、
前記位置情報は、円板状の前記刃部材の回転位置であることを特徴とする光ファイバ切断システム。 - 請求項2に記載の光ファイバ切断システムであって、
円板状の前記刃部材には、その円板平面の直径方向に磁力線が付与されており、
前記取得部は、付与された前記磁力線の方向を検出することにより、円板状の前記刃部材の回転位置を前記位置情報として取得することを特徴とする光ファイバ切断システム。 - 請求項3に記載の光ファイバ切断システムであって、
前記刃部材は、強磁界の印加により着磁されており、着磁された前記刃部材そのものが前記磁力線を発生させることを特徴とする光ファイバ切断システム。 - 請求項3に記載の光ファイバ切断システムであって、
前記刃部材には、磁石が取り付けられており、前記磁石が前記磁力線を発生させることを特徴とする光ファイバ切断システム。 - 請求項5に記載の光ファイバ切断システムであって、
前記磁石は、前記刃部材に固定する固定部品に取り付けられていることを特徴とする光ファイバ切断システム。 - 請求項1に記載の光ファイバ切断システムであって、
前記位置情報は、前記刃部材の高さ方向における前記光ファイバとの相対位置であることを特徴とする光ファイバ切断システム。 - 請求項7に記載の光ファイバ切断システムであって、
前記刃部材の高さ方向における前記相対位置を、ネジの回転位置に応じて調整する調整機構をさらに備え、
前記ネジ、前記ネジに固定した固定部品、又はそれら両方には、前記ネジの回転軸に直交する方向に磁力線が付与されており、
前記取得部は、付与された前記磁力線の方向を検出することにより、前記刃部材の高さ方向における前記相対位置を前記位置情報として取得することを特徴とする光ファイバ切断システム。 - 請求項8に記載の光ファイバ切断システムであって、
前記ネジ、前記固定部品、又はそれら両方は、強磁界の印加により着磁されており、着磁された物そのものが前記磁力線を発生させることを特徴とする光ファイバ切断システム。 - 請求項8に記載の光ファイバ切断システムであって、
前記ネジ、前記ネジに固定した固定部品、又はそれら両方には、磁石が取り付けられており、前記磁石が前記磁力線を発生させることを特徴とする光ファイバ切断システム。 - 請求項8に記載の光ファイバ切断システムであって、
前記刃部材の高さ方向における前記光ファイバとの相対位置の調整は、前記刃部材の高さ方向における位置の調整ではなく、前記光ファイバを把持する前記クランプの高さ方向における位置の調整によって行うことを特徴とする光ファイバ切断システム。
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KR101970422B1 (ko) | 2019-04-18 |
US20180306975A1 (en) | 2018-10-25 |
KR20180135786A (ko) | 2018-12-21 |
EP3447550B1 (en) | 2020-07-08 |
CN108693601A (zh) | 2018-10-23 |
EP3447550A1 (en) | 2019-02-27 |
US10591673B2 (en) | 2020-03-17 |
CN108693601B (zh) | 2020-05-19 |
EP3447550A4 (en) | 2019-07-31 |
CN206920648U (zh) | 2018-01-23 |
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