CN202063832U

CN202063832U - Optical fiber cutting blade positioning device

Info

Publication number: CN202063832U
Application number: CN2011200978336U
Authority: CN
Inventors: 张敬; 潘建华
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-04-06
Filing date: 2011-04-06
Publication date: 2011-12-07
Anticipated expiration: 2021-04-06

Abstract

The utility model discloses an optical fiber cutting blade positioning device which comprises a knife rest, wherein the knife rest is used for mounting a blade, a gear wheel is arranged on an outer side face of the blade and is used for fixing the blade, the blade and the gear wheel rotate in a coaxial way, concentric mounting shafts extend outwards from the center of the gear wheel along two end faces, the mounting shaft on the inner end face penetrates through a central hole of the blade and is arranged in the knife rest, a positioning pin stretches out of a contact surface of the gear wheel and the blade and is matched with a positioning hole of the blade, and a gear self-locking device is arranged in the knife rest. In the optical fiber cutting blade positioning device, the angle of a cutting edge of the cutting blade is adjusted and positioned through rotating the gear wheel, so that the adjustment process is stable, and the positioning is simple, convenient and accurate; cutting areas of the blade are subdivided through changing the number of teeth of the gear wheel; and the cutting areas of the cutting edge of the cutting blade are increased under the conditions that the quality of the blade is not influenced and the processing difficulty of the blade is not increased, therefore, the service life of a circular optical fiber cutting blade is effectively prolonged.

Description

Fiber cut blade locating device

Technical field

The utility model relates to optical fiber construction cutting special tool---fiber cut cutter, particularly a kind of locating device of round fiber cutting blade.

Background technology

The kind of fiber cut cutter is a lot of at present, most often uses the fiber cut cutter of round fiber cutting blade.The use of fiber cut cutter is that mode is divided into 16 zones to the round cutter sheet, and the mode of five equilibrium is to reserve 16 positioning round orifice on the round cutter sheet, utilizes screw to fix the blade edge region that each circular hole uses blade top five equilibrium.The diameter of circular shear blade is 22 millimeters, the diameter of optical fiber is at 0.125 millimeter, circular shear blade streaks on the stretching optical fiber that compresses in two ends, on optical fiber, draw one intersecting straight lines tool marks of the sixth of dark about optical fiber, directly do not draw disconnected, disconnected optical fiber (reason is equal to glass cutter and cuts a piece of glass) is broken in pressurization off with the fingers and thumb on the optical fiber tool marks then, in other words, it is 0.02 millimeter knife-blade that cut-out optical fiber in fact only uses sagitta, the blade of existing round fiber cutting blade is according to present five equilibrium mode, the rate of utilization of blade is very low, want to improve the utilization ratio of blade, blade subregions such as more a plurality of can only be marked off, just positioning round orifice will be increased, still, the round cutter sheet is limit by manufacturing process and manufacturing cost, increase the intensity that positioning round orifice can reduce the fiber cut blade, in back road sharpening sheet blade operation processing difficulties, cost and condemnation factor improve.And utilize the localized fiber cut cutter of circular hole, changing process complexity in the operation of cutting edge angle.

Summary of the invention

At the existing above-mentioned defective of existing fiber cutters circular hole locator means, the purpose of this utility model is to provide a kind of locating device that utilizes the gear location, regulates the round cutter sheet, significantly improve the work-ing life of cutting blade, improve the operational consistency of cutters.

Fiber cut blade locating device comprises the knife rest that blade is installed, and it is characterized in that: the outer side of described blade is equipped with the gear of fixing this blade, and blade and gear are coaxial rotation.

Described gear centre is along the protruding concentric installation shaft of both ends of the surface, the installation shaft of inner face is passed the blade center hole and is packed in the knife rest, the contact surface of gear and blade stretches out tommy, and tommy cooperates with the pilot hole of blade, and the gear self-locking device is housed in the knife rest.

Described gear self-locking device comprises a top spring, and an end of top spring is fixed on the knife rest, and the other end stretches into the interior engaging of teeth groove of gear.

Described gear self-locking device is that a worm screw that cooperates with described gear is installed on knife rest, regulates by the worm drive driven gear.

The installation shaft top of described gear outer face is provided with blind screw hole and rotation regulating tank.

The diameter of described gear is less than the diameter of blade.

The utility model is realized the adjusting and the location of cutting blade knife edge angular by revolving gear, adjustment process stable, location are easy accurately, segment the cutting zone of blade by the number of teeth that changes gear, do not influencing the blade quality, do not increasing under the situation of blade difficulty of processing, increase the cutting zone of cutting blade blade, thus the work-ing life of improving the round fiber cutting blade effectively.

Description of drawings

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

Fig. 2 is embodiment 1 a blade confined state synoptic diagram;

Fig. 3 is embodiment 1 blade and gear disengaged position synoptic diagram;

Fig. 4 is the structural representation of the utility model embodiment 2.

Embodiment

The utility model is with gear driven round fiber cutting blade, regulate the cutters knife edge angular by gear, trying to achieve the blade circumference with 22 millimeters calculating of conventional cutting blade diameter is 69.08 millimeters, using the sagitta of blade with reality is 0.02 millimeter, calculate about 1.326 millimeters of operable chord length, can use like this that to round be 52 angles complete one week of use of the blade of blade, analyze theoretically, the blade utilization ratio that blade is subdivided into 52 five equilibrium cutting zones is the highest, restriction in view of production technique and precision, be not easy to accomplish 52 five equilibriums in actual the use, generally can accomplish more than 30 five equilibriums, near 52 five equilibriums, the utilization ratio of blade is just high more more.Is example below in conjunction with accompanying drawing with 32 five equilibrium cutting zones of 22 millimeters cutting blades of diameter, and the utility model is described in further detail.

Embodiment 1:

Referring to Fig. 1, Fig. 2, shown in Figure 3, gear 2 adopts 18 millimeters of diameters, modulus 0.7, the number of teeth 32 teeth, the corresponding cutting edge zone 6 of each tooth, the coaxial installation shaft 4 of stretching out in the two ends of gear 2 center end faces, installation shaft 4 is the tolerance that is slidingly matched with the center mounting hole of blade 1, the length of installation shaft 4 is greater than the thickness of blade 1, the installation shaft 4 of gear 2 the inners is inserted in the open holes of knife rest 7 after passing blade 1 center mounting hole again, gear 2 inner faces have the tommy 3 that stretches out, tommy 3 can be established one or more, adopt two and be symmetrical arranged in this example, have the open holes 11 that tommy 3 is installed on the end face of gear 2, tommy 3 passes open holes 11 and an end schedules in the open holes 11 by the glue sealing, the interior running fit that forms of pilot hole of blade 1 is inserted in the open end of tommy 3, make blade 1 and the gear 2 can coaxial rotation interlock, use stage clip 12 to compress gear 2 and be close to blade 1, blade 1 and gear 2 can only angle of rotation on knife rest 7 can not axial motion; Installation shaft 4 tops of gear 2 outer faces are provided with less than the blind screw hole 5 of installation shaft 4 diameters and rotation regulating tank 8, screw in blind screw hole 5 with screw 9 when changing blade, outwards pull out gear 2 then.The top spring 10 of locking gear 2 is housed on the knife rest 7, one end of top spring 10 is fixed on the knife rest 7, the other end stretches into the interior engaging of teeth groove of gear 2, each teeth groove can be considered a positioning and locking groove, during swing pinion 2, spring 10 pressurized self-returns in top continue swing pinion 2, and top spring 10 ejects the engaging locking positioning after entering next teeth groove automatically.

Embodiment 2:

The mounting means of blade 1 and gear 2, matching relationship are all with embodiment 1 in this example, the self-locking device of gear 2 and embodiment 1 are different, a worm screw 13 that cooperates with gear 2 is installed on knife rest 7, regulate the cutters knife edge angular by worm screw 13 transmission belt moving gears 2, directly the worm screw 13 on the swivelling tool-holder just can driven gear 2 rotations be adjusted the cutters knife edge angular.

The foregoing description only is a better embodiment of the present utility model; describe technical conceive of the present utility model and essential implementation in detail; be not to be that protection domain of the present utility model is limited; all any simple modification and equivalent structure transformation or modifications of being done according to the utility model spirit all should be encompassed within the protection domain of the present utility model.

Claims

1. fiber cut blade locating device comprises the knife rest that blade is installed, and it is characterized in that: the outer side of described blade is equipped with the gear of fixing this blade, and blade and gear are coaxial rotation.

2. fiber cut blade locating device according to claim 1, it is characterized in that: described gear centre is along the protruding concentric installation shaft of both ends of the surface, the installation shaft of gear inner face is passed the blade center hole and is packed in the knife rest, the contact surface of gear and blade stretches out tommy, tommy cooperates with the pilot hole of blade, and the gear self-locking device is housed in the knife rest.

3. fiber cut blade locating device according to claim 2 is characterized in that: described gear self-locking device comprises a top spring, and an end of top spring is fixed on the knife rest, and the other end stretches into the interior engaging of teeth groove of gear.

4. fiber cut blade locating device according to claim 2 is characterized in that: described gear self-locking device is that a worm screw that cooperates with described gear is installed on knife rest, regulates by the worm drive driven gear.

5. fiber cut blade locating device according to claim 2 is characterized in that: the installation shaft top of described gear outer face is provided with blind screw hole and rotation regulating tank.

6. fiber cut blade locating device according to claim 1 and 2, it is characterized in that: the diameter of described gear is less than the diameter of blade.