Optical fiber collimator aligning regulating device
Technical field
The present invention relates to technical field of photo communication, particularly relate to a kind of optical fiber collimator aligning regulating device.
Background technology
Optical fiber collimator is a kind of optical passive component, is made up of optical fiber and GRIN Lens, and the light that optical fiber exports can be become directional light by it, also can by the directional light coupled into optical fibres in the external world.In optical absorption gas sensor domain, the paired use of optical fiber collimator is very common optically-coupled mode, the aligning regulating effect of two optical fiber collimators and the distance between them have direct impact to the coupling efficiency of light and the detection sensitivity of sensor, but aim at light collimator owing to not having corresponding special purpose device in prior art, thus cause the problem that aligning difficulty is large and precision is low of light collimator, and then reduce the relevant usability of optical fiber collimator.
Summary of the invention
The present invention proposes a kind of optical fiber collimator aligning regulating device, be intended to the problem solving optical fiber collimator alignment difficulties in prior art.
The technical scheme of optical fiber collimator aligning regulating device of the present invention is as follows:
A kind of optical fiber collimator aligning regulating device, comprise pedestal, the distance adjustment slide block that pedestal is installed and aligning adjustment slide block, described distance adjustment slide block is provided with highly consistent and for making optical fiber collimator bearing of trend be parallel to each other or overlap fastening structure with on aligning adjustment slide block, described distance adjustment slide block and pedestal linearly lead by arranging between the two coordinate apart from adjusting guide rail mechanism, describedly aim at aligning that adjustment slide block and pedestal pass through to arrange between the two and adjust guide rail mechanism and linearly lead and coordinate, described distance adjustment guide rail mechanism adjusts that guide rail mechanism is mutually vertical in the same side of pedestal to be arranged with aiming at, and it is crossing to adjust guide rail mechanism apart from the extended line and aligning that adjust guide rail mechanism.
Described aim at adjustment guide rail mechanism comprise the guide rail that linearly extends and with the guide groove of guide rail along its guide direction, described guide groove is opened on distance adjustment slide block.
Described distance adjustment guide rail mechanism comprises for driving the screw-drive mechanism of aiming at the rectilinear movement of adjustment slide block and aiming at the spline structure that rotates with screw-drive mechanism of adjustment slide block for stoping, described screw-drive mechanism adjusts slide block and is in transmission connection with aiming at, and described spline structure coordinates with slide block spline.
Described screw-drive mechanism comprises leading screw and feed screw nut, the two ends of described leading screw are equiped with the supporting base for supporting leading screw, the bearing of trend of the bearing wrapping wire thick stick that described leading screw is installed by its two ends rotates and is assemblied on supporting seat, and described feed screw nut is in the middle part of leading screw and is fixed in the through hole aiming at and adjustment slide block is offered.
Described spline structure comprises the U-shaped guide groove that be arranged in parallel with leading screw and to lead the slide block coordinated with U-shaped guide groove, and described slide block is fixed on the bottom aiming at adjustment slide block.
Described fastening structure comprise distance adjustment slide block and aim at adjustment slide block is offered on the installation passage that passes for optical fiber collimator and the inwall installing passage, revolve the trip bolt for locking or discharge optical fiber collimator established, the bearing of trend of the installation passage on described two mount pads is parallel to each other or overlaps, and the bearing of trend of described trip bolt is vertical with the bearing of trend installing passage.
Described distance adjustment slide block and aim at lock-screw adjustment slide block is respectively equipped with for locking both positions.
The present invention arranges orthogonal distance adjustment guide rail mechanism and adjusts guide rail mechanism with aiming on pedestal, and it is crossing to make the extension line of distance adjustment guide rail mechanism and aligning adjust guide rail mechanism, thus make distance adjustment slide block and aim at the movement locus adjusting slide block to be the distribution of T font, also at consistent apart from rational height on adjustment slide block and aligning adjustment slide block and for making optical fiber collimator bearing of trend be parallel to each other or overlap fastening structure, thus under the prerequisite making two optical fiber collimators in use be parallel to each other or overlap at highly consistent and bearing of trend, Distance geometry Aligning degree is adjustable, and then solve the problem of optical fiber collimator alignment difficulties in prior art.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiments of the invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the schematic cross-section at A-A place in Fig. 1.
Embodiment
The embodiment of optical fiber collimator aligning regulating device of the present invention: as shown in Figure 1 to Figure 3, this device comprises pedestal 23, distance adjustment slide block 10, aim at adjustment slide block 3, distance adjustment guide rail mechanism 200 adjusts guide rail mechanism 100 with aiming at, wherein, the guide groove that aligning adjustment guide rail mechanism 100 is offered by guide rail 2 and aligning adjustment slider bottom is formed, distance adjustment guide rail mechanism 200 is by feed screw nut 10, leading screw 8, U-shaped guide groove 19 and distance adjust the slide block arranged bottom slide block 10 and form, in distance adjustment guide rail mechanism 200 middle distance adjustment slide block middle through-hole, fixing feed screw nut and leading screw 8 constitute the screw-drive mechanism for promoting right side mount pad movement, and the slide block arranged bottom U-shaped guide groove 19 and right side mount pad coordinates the spline structure 300 constituted for stoping right side mount pad 3 to rotate, distance adjustment guide rail mechanism 200 adjusts that guide rail mechanism 100 is mutually vertical in the same side of pedestal 1 to be arranged with aiming at, and it is crossing to adjust guide rail mechanism 100 apart from the extended line and aligning that adjust guide rail mechanism 200, distance adjustment guide rail mechanism 200 is made to adjust guide rail mechanism 100 and form a kind of T font structure with aiming at, and the fastening structure 3-1 be respectively arranged with on distance adjustment slide block 10 and aligning adjustment slide block 3 for fixed fiber collimating apparatus 4 position, this fastening structure 3-1 revolves by the inwall of the installation passage 3-2 that mount pad 3 is offered and installation passage 3-2 the trip bolt 5 established, 9 are formed, and the bearing of trend of the installation passage 3-2 that two mount pads 3 are offered is parallel to each other, it is parallel with the plane of aiming at the bearing of trend place adjusting guide rail mechanism 100 that the line of two fastening structure 3-1 and distance adjust guide rail mechanism 200, namely distance adjustment slide block 10 is highly consistent with the fastening structure 3-1 aiming at setting on adjustment slide block 3.
Described guide rail 2 is fixed on pedestal 23 by screw 14 and screw 22, aim at adjustment slide block 3 to slide on guide rail 2, when aiming at adjustment slide block 3 and sliding into desired location, by lock-screw 1 and lock-screw 13, aligning adjustment slide block 3 is fixed on guide rail 2; Aim at hole adjustment slide block 3 being processed with installing optical fibres collimating apparatus 4, by trip bolt 5, optical fiber collimator 4 is fixed on aligning adjustment slide block 3.Supporting base 6 and supporting base 25 are fixed on pedestal 23 respectively by screw 15, screw 21, screw 17 and screw 24; Leading screw 8 is fixed on supporting base 6 and supporting base 25 by bearing 7 and bearing 12, and the axial direction of leading screw 8 is vertical with the direction of guide rail 2.Feed screw nut 10 is processed with the hole of installing optical fibres collimating apparatus 11, optical fiber collimator 11 is arranged on feed screw nut 10 by trip bolt 9; On feed screw nut 10, the hole of installing optical fibres collimating apparatus 11 is positioned on sustained height with apart from the hole adjusting installing optical fibres collimating apparatus 4 on slide block 10.U-shaped guide groove 19 is fixed on pedestal 23 by screw 20 and screw 18, and U-shaped guide groove 19 to be positioned at immediately below leading screw 8 and to be parallel to leading screw 8; Feed screw nut 10 can realize to-and-fro movement in the groove of U-shaped guide groove 19.Rotary handle 16 is fixed on the end of leading screw 8, can realize the rotation of leading screw 8, and then realize feed screw nut 10 moving along U-shaped guide groove 19 by rotating rotary handle 16.
The present invention is when aiming at adjustment optical fiber collimator 4, aligning adjustment slide block 3 is first regulated to slide on guide rail 2, make optical fiber collimator 4 and optical fiber collimator 11 be on same optical axis, then tighten lock-screw 1 and lock-screw 13, make aligning adjust slide block 3 and be fixed on guide rail 2; By forward or reverse rotary handle 16, realize the motion that moves forward and backward of feed screw nut 10, make distance adjustment slide block 10 relatively aim at adjustment slide block 3 away from or close, thus regulate the distance between optical fiber collimator 4 and optical fiber collimator 11.
In the above-described embodiments, aim at adjustment guide rail mechanism to be made up of guide rail and guide groove, distance adjustment guide rail mechanism is made up of screw-drive mechanism and spline structure, in other embodiments, two guiding mechanisms also can exchange use, or replace two guiding mechanisms with linear guide rail device.
In the above-described embodiments, fastening structure is for installing passage and trip bolt, in other embodiments, this fastening structure also can be draw-in groove that mount pad is offered or stop screw, clip or back-up ring for stoping optical fiber collimator to swing at the bearing of trend of two guiding mechanisms, these structures are prior art, therefore repeat no more.