CN201583682U

CN201583682U - Optical fiber cutting device

Info

Publication number: CN201583682U
Application number: CN2010200333651U
Authority: CN
Inventors: 郑家浩; 郑道丞
Original assignee: SHANGHAI UNIVERSITY
Current assignee: Beijing Qin Qin Yang Technology Co Ltd
Priority date: 2010-01-21
Filing date: 2010-01-21
Publication date: 2010-09-15
Anticipated expiration: 2020-01-21

Abstract

The utility model relates to an optical fiber cutting device, which comprises a cutter frame, an optical fiber positioning mechanism and a cutter blade moving mechanism, wherein the optical fiber positioning mechanism is arranged on the cutter frame. The utility model is characterized in that a cutter blade positioning mechanism has the characteristics that a round cutter blade is fixed on a fan-shaped plate through a gasket and a handle screw, the lower part of the fan-shaped plate is provided with a pin hole which is glidingly matched with a center shaft, and the center shaft is connected with the cutter frame through a position regulation mechanism. The utility model has a cutting principle that the round cutter blade does circular arc movement through being driven by a fan-shaped block, so the straight line movement of the cutter blade of the optical fiber cutting device in the prior art is changed, the optical fiber cutting quality is improved, in addition, the structure of the device is simple, and the operation is more convenient.

Description

A kind of optical fiber cleaver

Technical field

The utility model relates to a kind of optical fiber cleaver.

Background technology

Optical fiber cleaver belongs to the optical-fibre precise instrument, and it requires under 125mm standard fiber diameter, and cutting optical fibre end face squareness deviation is less than ± 0.5 degree.Could guarantee the connecting loss index of fiber optic network like this.At present external " optical fiber cleaver " profile is ever-changing, and linear bearing is also varied, all is the movement locus that takes the air line but blade cuts optical fiber relatively.The domestic Counterfeit Item that similar " optical fiber cleaver " also arranged.Its complex structure, and straight line moves.

The utility model content

The purpose of this utility model is to provide a kind of improved optical fiber cleaver at the defective of prior art existence, and this apparatus structure is simple, and the cut quality height.

For realizing above purpose, design of the present utility model is: the relative optical fiber of fiber cut employing blade of the present utility model is done the circular motion track and is carried out cutting optical fibre, changes the labyrinth of existing fiber cutter sweep and the movement locus of blade.Thereby reach the purpose of independent intellectual property right " optical fiber cleaver ".Knot structure device of the present invention is: circular knife is fixed on the fanning strip by the handle screw.The fanning strip lower end is porose to be slidingly matched with central shaft, and realization is the center with the central shaft, and circular knife is done wobbling action about by fanning strip.Hole wringing fit on central shaft and the shift plate is fixed on the shift plate, and the shift plate two ends are screwed on knife rest.Shift plate one end embeds eccentric screw, unclamps gib screw rotating eccentricity screw shift plate and slides up and down, and finally reaches the purpose that circular knife is adjusted the cutting optical fibre degree of depth by central shaft, fanning strip.Optical fiber and central shaft are on an axis, and the circular knife swing reaches the purpose of cutting optical fibre by axis.

According to above-mentioned utility model design, the utility model adopts following technical proposals:

A kind of optical fiber cleaver, comprise knife rest, be installed on fiber orientation mechanism and blade movement mechanism on the knife rest, it is characterized in that described blade detent mechanism is: a circular knife is fixed on the fanning strip by a pad and a handle screw, the bottom of this fanning strip has pin-and-hole and a central shaft cunning to join, and this central shaft is connected with described knife rest by positioner.

The structure of above-mentioned positioner is: described central shaft is fixed on the shift plate, has a mounting hole and the eccentric screw cunning that is screwed on the knife rest to join on this shift plate, and described shift plate is after positioning, fixedlys connected with knife rest by two screws in its two ends.

The pin-and-hole outside that above-mentioned fanning strip and central shaft cunning are joined has the flange suit a reduction torsion spring, and an end of this reduction torsion spring is fixedlyed connected with described central shaft, and the other end is fixedlyed connected with described fanning strip.

The structure of above-mentioned fiber orientation mechanism is: press an end of fine frame to be hinged by a tubular shaft and knife rest for one, the other end is equipped with a magnet and knife rest adhesive, and both sides connect two briquettings by screw before and after the middle part, the lower end of each briquetting each with gluing being integral of rubber gasket; A disconnected fine post is equipped with in the fine frame of described pressure middle part central authorities, fine post and the described briquetting central channel cunning of should breaking joined, the upper end is supported by a spring, and described disconnected fine post upper vertical chute is joined with a register pin cunning that is fixed on the briquetting, the fixedly connected locating piece in lower end of disconnected fine post; The behind of the fine frame of described pressure, V-shaped groove on the knife rest has one to press fine plate on the V-shaped groove, and this presses fine plate and knife rest to removably connect, and presses foam-rubber cushion of stickup below the fine plate.

Outstanding feature of the present utility model and useful effect: incision principle of the present utility model is that circular shear blade is done circular motion under the drive of secter pat, thereby changed the blade rectilinear motion of prior art optical fiber cleaver, improved the fiber cut quality, and this apparatus structure is simple, more convenient operation.

Description of drawings

Fig. 1 is the structural representation of an embodiment of the utility model.

Fig. 2 is the left view of Fig. 1.

Fig. 3 is an A-A place cut-open view among Fig. 1.

Embodiment

Details are as follows in conjunction with the accompanying drawings for preferred embodiment of the present utility model:

Embodiment one: referring to Fig. 1, Fig. 2 and Fig. 3, this optical fiber cleaver, comprise knife rest 11, be installed on fiber orientation mechanism and blade movement mechanism on the knife rest 11, described blade detent mechanism is: a circular knife 9 is fixed on the fanning strip 13 by a pad 8 and a handle screw 7, pin-and-hole and 3 sliding joining of central shaft are arranged at the bottom of this fanning strip 13, and this central shaft 3 is connected with described knife rest 11 by positioner.

Embodiment two: present embodiment and embodiment one are basic identical, different is: described central shaft 3 is fixed on the shift plate 1, one mounting hole and 2 sliding the joining of eccentric screw that are screwed on the knife rest 11 are arranged on this shift plate 1, described shift plate 1 is after positioning, fixedlys connected with knife rest 11 by two screws in its two ends.Described fanning strip 13 has the flange suit a reduction torsion spring 20 with the central shaft 3 sliding pin-and-hole outsides of joining, and an end of this reduction torsion spring 20 is fixedlyed connected with described central shaft 3, and the other end is fixedlyed connected with described fanning strip 13.The structure of described fiber orientation mechanism is: press an end of fine frame 5 to be hinged by a tubular shaft 10 and knife rest 11 for one, the other end is equipped with a magnet 4 and knife rest 11 adhesives, and both sides connect two briquettings 6 by screw before and after the middle part, the lower end of each briquetting 6 each with a rubber gasket 5 gluing being integral; A disconnected fine post 19 is equipped with in the fine frame of described pressure 5 middle part central authorities, should join with described briquetting 6 central channel cunnings by disconnected fine post 19, the upper end is supported by a spring 17, described disconnected fine post 19 upper vertical chutes and 18 sliding the joining an of register pin of being fixed on the briquetting 6, the fixedly connected locating piece 6 in lower end of disconnected fine post 19; The behind of the fine frame 5 of described pressure, V-shaped groove 21 on the knife rest 11, have one to press fine plate 12 on the V-shaped groove 21, and this presses fine plate 12 to removably connect with knife rest 11, presses foam-rubber cushion 14 of fine plate 12 following stickups.

Principle of work of the present utility model is:

1. in the V-type groove 21 of fiber orientation on knife rest 11, be fixed on below the rubber gasket 15 with fine frame 5 of the pressure of knife rest 11 hinges and briquetting 6.

2. circular knife 9 is fixed on the fanning strip 13.Fanning strip 13 lower ends have a hole and central shaft 3 to be slidingly matched.With central shaft 3 is the center, and circular knife 9 is made arc swing with fanning strip on knife rest 11.Circular knife 9 reaches the purpose of cutting optical fibre as arc swing.

3. central shaft 3 is fixed on the shift plate 1, and shift plate 1 one ends embed eccentric screw 2, and rotating eccentricity screw 2 shift plate 1 slide up and down, and finally reaches the purpose that circular knife is adjusted the cutting optical fibre height by central shaft, fanning strip.

4. reduction torsion spring 20 is enclosed within on the outer wall in fanning strip 13 holes, and torsion spring 20 steel wires one end inserts and is fixed on the fanning strip 13, and the other end is fixed on the knife rest 11.Stirring handle screw 7 fanning strips 13 with hand is that rotary oscillation is made at the center with central shaft 3, after cutting optical fibre is finished, makes fanning strip 13, circular knife 9 counter-rotatings get back to initial position automatically by the effect torsion of torsion spring 20.

5. disconnected fine: fanning strip 13 is by the circular motion track, after making circular knife 9 cross the fiber axis centers to be cutting optical fibre.On disconnected fine post 19, under the effect of spring 17, be close on the fanning strip 13 outer circular arcs by locating piece 16 by screw retention for locating piece 16, crosses the fiber axis center when fanning strip 13, and disconnected fine post 19 falls, and breaks optical fiber.

6. circular knife 9 is walked the circular motion track ratio movement locus that takes the air line and is come the cutting optical fibre benefit to be: simple in structure, machining precision is high, cost is low, be convenient to produce in batches.

The operation steps of " optical fiber cleaver ":

1. the optical fiber side that purchases is gone in the V-type groove 21.

2. pressing fine plate 12 to cover, come positioning optical waveguides by foam-rubber cushion 14.

3. pressing fine frame 5 to put down, fix the optical fiber two ends by briquetting 6 and rubber gasket 15.

4. stirring handle screw 7 fanning strips 13 is the center with central shaft 3, makes rotary oscillation, finishes cutting, cuts off optical fiber.

5. lift and press fine frame 5 to make fanning strip 13, circular knife 9 counter-rotatings get back to initial position automatically by the effect torsion of torsion spring 20.

Claims

1. An optical fiber cutting device, comprising a knife rest (11), an optical fiber positioning mechanism and a blade movement mechanism installed on the knife rest (11), is characterized in that the described blade positioning mechanism is: a circular blade (9) passes through A spacer (8) and a handle screw (7) are fixed on a fan-shaped plate (13), and the bottom of the fan-shaped plate (13) has a pin hole to slide with a central shaft (3), and the central shaft (3) It is connected with the knife rest (11) through a positioning mechanism.

2. The optical fiber cutting device according to claim 1, characterized in that the structure of the position adjustment mechanism is: the central axis (3) is fixed on an offset plate (1), and the offset plate (1) There is a waist-shaped hole on the top and the eccentric screw (2) screwed on the knife rest (11) is slidingly matched. After the offset plate (1) is adjusted, its two ends are connected to the knife rest (11) by two screws. Fixed connection.

3. The optical fiber cutting device according to claim 1 or 2, characterized in that there is a flange on the outside of the pin hole where the sector plate (13) slides with the central shaft (3) and a reset torsion spring (20) One end of the return torsion spring (20) is fixedly connected to the central shaft (3), and the other end is fixedly connected to the fan-shaped plate (13).

4. The optical fiber cutting device according to claim 1 or 2, characterized in that the structure of the optical fiber positioning mechanism is: one end of a fiber press frame (5) passes through a hollow shaft (10) and a knife holder (11) Hinged, the other end is equipped with a magnet (4) and the knife holder (11) to attract, and the front and rear sides of the middle part are connected with two pressure blocks (6) by screws, and the lower end of each pressure block (6) is connected with a piece of rubber The pad (5) is glued together; a broken fiber column (19) is installed in the middle of the fiber press frame (5), and the fiber broken column (19) is slidingly matched with the central groove of the pressing block (6). The upper end is supported by a spring (17), the vertical chute on the upper part of the broken fiber post (19) slides with a positioning pin (18) fixed on the pressing block (6), and the lower end of the broken fiber post (19) is fixedly connected A positioning block (6); behind the described fiber press frame (5), there is a V-shaped groove (21) on the knife rest (11), and there is a fiber-compressed plate (12) on the V-shaped groove (21). Fibreboard (12) is detachably connected with knife rest (11), and a sponge pad (14) is pasted below the fibreboard (12).