A kind of joints of optical fibre clamping device
Technical field
The utility model relates to joints of optical fibre field, particularly relates to a kind of joints of optical fibre clamping device.
Background technology
The joints of optical fibre, also known as the device removably connected that fiber adapter is between optical fiber and optical fiber, it is the docking of two fiber end face precisions, the output energy of launching fiber farthest can be coupled in optical fiber, and make the impact of optical link minimum.The now general joints of optical fibre are made up of ceramic lock pin based on zirconium oxide, are carried out the connection of receiving optical fiber by the circular hole that manufacture one in a cylinder is close with fibre diameter.And wherein, the distance at the center of hole and cylindrical is concentricity.Concentricity can have influence on the performance of the joints of optical fibre greatly, and not only the size of concentricity, its angle direction also can have influence on the performance of the joints of optical fibre.
Joints of optical fibre concentricity detects and usually adopts in two ways: contactless and contact, adopt non-contact detection due to detection speed very fast, and harmless, so be solution relatively preferably.But non-contact detection means require higher to the clamp precision of lock pin, and angle and spatial deviation can cause very large impact to measurement.If the joints of optical fibre are then fixed on V groove by the mode of V groove by contact measurement, below is the materials such as stainless steel, top adopts elastic arm or depression bar etc. to be compressed by tested ceramic insertion core downwards, with 3 fastening methods, ceramic insertion core is fixed, mainly for detection of fiber end face, mainly 3D parameter and joints of optical fibre concentricity etc.Due to V groove and the joints of optical fibre fastening after, contact point only has 3 points, through long-term plug and rotation, there is heavy wear in the face that below can be caused to contact with lock pin, below is caused to occur two sections of circular arcs, and then cause the direction of wearing and tearing also can produce difference, thus the precision of impact test and accuracy.
Utility model content
Feature and advantage of the present utility model are partly stated in the following description, or can be apparent from this description, or learn by putting into practice the utility model.
For overcoming the problem of prior art, the utility model provides a kind of joints of optical fibre clamping device, adopts, thus reduces existing V groove fixed sturcture produces the fixture that wear phenomenon causes overdue phenomenon in serviceable life when Long-Time Service, reduce wear, improve precision and the accuracy of test.
It is as follows that the utility model solves the problems of the technologies described above adopted technical scheme:
According to an aspect of the present utility model, a kind of joints of optical fibre clamping device is provided, it is characterized in that comprising: body and pressure arm, between the main part of this pressure arm and this body, gap is set, for inserting joints of optical fibre lock pin and being clamped between this pressure arm and this body by compressing this pressure arm by joints of optical fibre lock pin; Wherein the position of grip optical fiber connector lock pin is positioned at the most advanced and sophisticated position in this gap, is cooperatively interacted and formed by the first clamping part be positioned on this pressure arm and the second clamping part be positioned on this body; Also comprise sleeve pipe, be arranged in the position of this grip optical fiber connector lock pin, for grip optical fiber connector lock pin, the sidewall of this sleeve pipe is provided with breach.
According to an embodiment of the present utility model, the inwall of this sleeve pipe is provided with wearing layer.
According to an embodiment of the present utility model, this wearing layer is high abrasion material.
According to an embodiment of the present utility model, this sleeve pipe has certain distance apart from the rear end face of this first clamping part and the second clamping part.
According to an embodiment of the present utility model, the breach on this sleeve pipe is linearly, and runs through this sleeve pipe whole along the length direction of this sleeve pipe.
According to an embodiment of the present utility model, the front end of this first clamping part and the second clamping part is provided with lead angle, inserts for guiding the joints of optical fibre.
According to an embodiment of the present utility model, the front end of this first clamping part or the second clamping part is provided with barb, skids off for preventing this sleeve pipe.
According to an embodiment of the present utility model, this barb is arranged along the front end profile of this first clamping part or the second clamping part.
According to an embodiment of the present utility model, the end at the position of this grip optical fiber connector lock pin is provided with baffle plate, for locating measured device front position.
According to an embodiment of the present utility model, the outer wall of this first clamping part and the second clamping part is the arc of indent.
The joints of optical fibre clamping device that the utility model provides, utilize the sleeve pipe locking joints of optical fibre with opening, increase surface of contact large, wearing and tearing can be alleviated greatly, in the occasion that some rotates in (such as concentricity test), better serviceable life can be provided.
By reading instructions, those of ordinary skill in the art will understand the characteristic sum content of these technical schemes better.
Accompanying drawing explanation
Below by with reference to accompanying drawing describe the utility model particularly in conjunction with example, advantage of the present utility model and implementation will be more obvious, wherein content shown in accompanying drawing is only for explanation explanation of the present utility model, and do not form restriction of going up in all senses of the present utility model, in the accompanying drawings:
Fig. 1 is the Facad structure schematic diagram of the joints of optical fibre clamping device of the utility model embodiment.
Fig. 2 is the structural representation of the sleeve pipe of the utility model embodiment.
Fig. 3 is the inverse layer structure schematic diagram of the joints of optical fibre clamping device of the utility model embodiment.
Fig. 4 is the view of the insertion joints of optical fibre of the joints of optical fibre clamping device of the utility model embodiment.
Embodiment
As shown in Figures 1 to 4, the utility model provides a kind of joints of optical fibre clamping device, it is characterized in that comprising: body 20 and pressure arm 10, gap 80 is set between the main part of pressure arm and body, for inserting joints of optical fibre lock pin and being clamped between pressure arm 10 and body 20 by compressing pressure arm by joints of optical fibre lock pin; Wherein the position of grip optical fiber connector lock pin is positioned at the most advanced and sophisticated position in gap 80, is cooperatively interacted by the first clamping part 11 be positioned on pressure arm and the second clamping part 21 be positioned on body and is formed; Also comprise sleeve pipe 30, be arranged in the position of grip optical fiber connector lock pin, for grip optical fiber connector 70 lock pin, the sidewall of sleeve pipe 30 is provided with breach 31.Wherein one end of pressure arm 10 can be arranged on body 10, also can be separate type.
In the present embodiment, gap 80 is V-shaped, and the breach 31 on sleeve pipe 30 is linearly, and runs through whole sleeve pipe along the length direction of sleeve pipe 30, and the rear end face of this first clamping part 11 of the distance of sleeve pipe and the second clamping part 21 has certain distance.Can also arrange wearing layer at the inwall of sleeve pipe 30, the material of wearing layer is high abrasion material is such as wolfram steel.The outer wall of the first clamping part 11 and the second clamping part 21 is the arc of indent, that is, the circular configuration of indent is provided with beyond the outer wall of the first clamping part 11 and the second clamping part 21, the front end of the joints of optical fibre 70 is located in the circular configuration of this indent, for inserting the lock pin of the joints of optical fibre 70.
In addition, the front end of the first clamping part 11 and the second clamping part 21 is provided with lead angle, inserts for guiding the joints of optical fibre 70.The front end of the first clamping part 11 or the second clamping part 21 is provided with barb, and for preventing sleeve pipe 30 from skidding off, barb can be arranged along the front end profile of the first clamping part 11 or the second clamping part 21.
As shown in Figure 3, also comprise baffle plate 50, be arranged on the end at the position of grip optical fiber connector lock pin, for locating measured device front position, the degree of depth that the joints of optical fibre 70 insert can also be fixed simultaneously, prevent the joints of optical fibre 70 from inserting dark.Baffle plate 50 can claim rectangle, and its two ends are fixed on the back side of body 20 by screw element 51.
Referring again to Fig. 1, also comprise locking wrench 40, locking wrench 40 is fixed with screw element 41 (the present embodiment adopts screw 42 to be fixed on locking wrench 40 by screw element 41), the other end of pressure arm 10 is suspended in body 20 and between the revoliving arm 23 that body 20 stretches out, revoliving arm 23 is provided with the threaded hole passed for screw element 41, when locking wrench 40 locks rotation, the other end being promoted pressure arm 10 by screw element 41 is moved to body 20, thus grip optical fibers connector ferrule 70; When locking wrench 40 unclamps rotation, pressure arm 10 homing, thus unclamp joints of optical fibre lock pin 70.
Also comprise the taper lock tieholen 22 for fixed clamp device be arranged on body 20, for clamping device being fixed on the equipment that end surface of optical fiber connector detects.Two taper lock tieholens 22 are provided with at the right and left of body 20, by conical screw, the clamping device of the present embodiment is fixed on the equipment of end surface of optical fiber connector detection, owing to being taper lock tieholen, can ensureing that position when clamping device is installed at every turn is relatively fixing, not offset.But fixed form of the present utility model is not limited to this, the quantity of the locking hole of employing and the position of locking hole all can be arranged according to actual needs, as long as be fixed on by clamping device on the equipment of end surface of optical fiber connector detection.
The mode of operation of clamping device of the present utility model is as follows: be first fixed on the clamping fixture table of end surface of optical fiber connector checkout equipment by locking hole 22 by this device, locking wrench 40 is got to release position, now pressure arm 10 returns to free state, the lock pin of the joints of optical fibre 70 is inserted in the space between clamping part, locking wrench 40 is got to locked position, the lock pin of pressure arm 10 pressed fiber connector 70, the joints of optical fibre 70 are made to be fixed on retaining part, locking wrench 40 is got to release position, now pressure arm 10 returns to the lock pin that free state can take off the joints of optical fibre 70.
The joints of optical fibre clamping device that the utility model provides, adopts the lock pin of the sleeve pipe and the joints of optical fibre with opening directly to contact, greatly alleviates wearing and tearing, in the occasion that some rotates, such as, is in concentricity test, can provides better serviceable life.The utility model uses the mode of encircling locking, and inwall arranges wearing layer, provides longer serviceable life.Its machining precision of sleeve pipe with opening is higher than V groove structure, is more suitable in high-accuracy detection clamp structure, and changes simple, advantageously in daily servicing.
Above with reference to the accompanying drawings of preferred embodiment of the present utility model, those skilled in the art do not depart from scope of the present utility model and essence, and multiple flexible program can be had to realize the utility model.For example, to illustrate as the part of an embodiment or the feature that describes can be used for another embodiment to obtain another embodiment.These are only the better feasible embodiment of the utility model, not thereby limit to interest field of the present utility model that the equivalence change that all utilization the utility model instructionss and accompanying drawing content are done all is contained within interest field of the present utility model.