CN213690024U - Optical fiber coupling assembly - Google Patents

Abstract

The utility model discloses an optical fiber coupling assembly, including fixing base, connecting cover, upper clamp and stop device, the fixing base is located laser coupling machine, the connecting cover is fixed in the fixing base bottom, the connecting cover bottom is equipped with the upper clamp seat, upper clamp threaded connection is on the upper clamp seat, be equipped with first suction hole on the upper clamp seat, be equipped with the holding tank in the upper clamp, the tank bottom is equipped with the second suction hole, be equipped with the vacuum getter device on the fixing base; stop device includes spacing post, spring and stop collar, and the stop collar is rotatory to be cup jointed outside last anchor clamps, goes up the anchor clamps lateral wall and is equipped with first perforation, and spacing post one end is equipped with spacing convex part, and spacing convex part is located the inside of holding tank, has seted up the groove of stepping down on the cell wall of holding tank, and spacing convex part is located to the spring and between the groove of stepping down. The utility model discloses simple structure goes up anchor clamps threaded connection on last anchor clamps seat, has shortened the time of changing anchor clamps greatly.

Description

Optical fiber coupling assembly

Technical Field

The utility model relates to a laser coupling equipment field, concretely relates to optical fiber coupling subassembly.

Background

With the development of optical fiber communication and optical fiber sensing technologies, the preparation of optoelectronic devices becomes the key for the further development of optical information technologies. The existing optical transmitter and receiver device, i.e. TOSA/ROSA, is manufactured by a semiconductor laser or a semiconductor optical receiver through a packaging process into different optical communication standard interface products. One of the key steps in the packaging process is the coupling of a laser and an optical fiber, and the packaging requires that a welded device has extremely high coaxiality and positioning accuracy and that the device is simply and quickly assembled and disassembled. When utilizing laser coupling machine to carry out the coupling alignment, normally can use anchor clamps, go up anchor clamps and be used for fixed work piece, nevertheless last anchor clamps among the current laser coupling machine are fixed mostly, when the work piece specification changes, can't directly change fast and correspond the last anchor clamps of specification. Accordingly, it is an object of the present invention to provide a fiber coupling assembly that overcomes the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Weak point to prior art exists, the utility model provides an optical fiber coupling subassembly simple structure, installation and dismantlement are convenient and fast very, can the quick replacement correspond the last anchor clamps of specification, shorten the time of changing the last anchor clamps.

(II) technical scheme

In order to solve the technical problem, the utility model provides a following technical scheme: an optical fiber coupling assembly comprises a fixed seat, a connecting cover, an upper clamp and a limiting device, wherein the fixed seat is arranged on a laser coupling machine, the connecting cover is fixed at the bottom of the fixed seat, an upper clamp seat is arranged at the bottom of the connecting cover, the upper clamp is in threaded connection with the upper clamp seat, a first air suction hole is formed in the axis of the upper clamp seat, a containing groove capable of containing a workpiece is formed in the upper clamp, a second air suction hole communicated with the first air suction hole is formed in the bottom of the containing groove, a vacuum air suction device used for vacuumizing the first air suction hole and the second air suction hole is arranged on the fixed seat, and the vacuum air suction device is communicated with the first air suction hole;

the limiting device comprises a limiting post, a spring and a limiting sleeve, the limiting sleeve is rotatably sleeved outside the upper clamp, a first through hole is formed in the side wall of the upper clamp, a second through hole is formed in the side wall of the limiting sleeve at a position corresponding to the first through hole, the limiting post can be synchronously inserted into the first through hole and the second through hole in a sliding and inserting mode, a limiting convex part is arranged at one end of the limiting post and located inside the accommodating groove, a yielding groove used for yielding the limiting convex part is formed in the groove wall of the accommodating groove, the caliber of the yielding groove is larger than that of the first through hole, and the spring is arranged between the limiting convex part and the yielding groove; the limiting sleeve is rotated to enable the limiting column to be inserted into the first through hole in a sliding mode or inserted into the first through hole and the second through hole in a synchronous sliding mode.

Further, a thread groove is formed in the upper clamp seat, and the bottom of the thread groove is communicated with the first air suction hole; and a threaded rod matched with the threaded groove is arranged at the top of the upper clamp.

So set up, can fixed connection go up anchor clamps and connection lid in with threaded rod top screw in thread groove, it is all very convenient to dismantle and install, can the quick replacement correspond the last anchor clamps of specification, has shortened the time of changing anchor clamps greatly.

The vacuum suction device comprises a vacuum suction pump and a suction pipe, a suction groove is formed in the bottom of the fixed seat, a suction port is formed in the bottom of the suction groove, and the suction port is communicated with the first suction hole and the suction pipe respectively.

So set up, when the vacuum aspirator pump started, through the breathing pipe to first suction opening and the second suction opening evacuation to fix the work piece at the holding tank bottom.

Further, a sealing convex part is arranged at the top of the connecting cover, the sealing convex part is positioned on the outer side of the first air suction hole, and the top of the sealing convex part is in close contact with the bottom of the air suction groove.

So set up, sealed convex part top and the tank bottom in close contact with of breathing in have improved the fixed effect of vacuum getter device to the absorption of work piece greatly.

Further, the aperture of the accommodating groove is larger than that of the second air suction hole.

So set up, have the ladder face between holding tank and the second suction hole for the upper and lower position of restriction work piece in the holding tank effectively prevents that the work piece from being by direct suction holding tank.

Further, an inclined plane is arranged at one end, far away from the limiting convex part, of the limiting column, and the direction of the inclined plane is opposite to the rotating direction of the limiting sleeve.

So set up to through the rotation of stop collar, enable in spacing post is crowded into the holding tank better, improve the convenience of operation.

(III) advantageous effects

Compared with the prior art, the utility model provides an optical fiber coupling subassembly possesses following beneficial effect:

the optical fiber coupling assembly adopts an upper clamp communicated with a vacuum suction device to fix a workpiece, the upper clamp fixes the outer side surface of the workpiece through the inner wall of the accommodating groove, and the coaxial coupling precision of the workpiece is improved; the upper clamp assembly is simple in structure, the upper clamp is in threaded connection with the upper clamp seat, the upper clamps of different specifications can be quickly replaced by only screwing out the top of the upper clamp from the threaded groove, the time for replacing the upper clamp is greatly shortened, the upper clamp assembly is very convenient to mount and dismount, and the coupling efficiency is improved; the limiting device effectively prevents the workpiece from falling out of the containing groove when the vacuum suction device fails.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is an exploded view of the structure of the present invention;

FIG. 3 is a schematic structural view of the fixing base;

FIG. 4 is a schematic view of the structure of the connecting cover;

FIG. 5 is a sectional view of the connection structure of the fixing base and the connection cover;

FIG. 6 is an enlarged view of the structure at A in FIG. 5;

FIG. 7 is a schematic view of a front cross-sectional structure of the upper fixture and the limiting device when the limiting post is inserted into the first through hole;

FIG. 8 is an enlarged view of the structure at B in FIG. 7;

fig. 9 is a schematic view of a connection structure when the position-limiting columns are inserted into the first through hole 323 and the second through hole 421;

fig. 10 is a schematic top sectional view of the upper clamp and the limiting device when the limiting post is inserted into the first through hole.

In the drawings: 1. a fixed seat; 11. connecting columns; 111. a first threaded hole; 12. a suction groove; 121. an air suction port; 13. a vacuum getter pump; 14. an air intake duct; 15. a connecting projection; 151. fixing grooves; 1511. a first spring; 1512. connecting blocks; 2. a connecting cover; 21. a connecting recess; 22. a sealing protrusion; 23. an upper clamp seat; 231. a thread groove; 232. a first air-intake hole; 3. an upper clamp; 31. a threaded rod; 32. accommodating grooves; 321. a second suction hole; 322. a yielding groove; 323. a first perforation; 4. a limiting device; 41. a limiting column; 411. a limiting convex part; 412. an inclined surface; 42. a limiting sleeve; 421. a second perforation; 43. and a second spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1 to 10, wherein fig. 1 is a schematic structural diagram of the present invention, fig. 2 is a structural diagram of the present invention, fig. 3 is a schematic structural diagram of a fixing base, fig. 4 is a schematic structural diagram of a connection cover, fig. 5 is a sectional view of a connection structure of the connection cover and the fixing base, fig. 6 is a schematic structural diagram of a position a in fig. 5, fig. 7 is a schematic structural diagram of a front cross-sectional view of a position column inserted in a first through hole when an upper clamp is connected to a position limiting device, fig. 8 is a schematic structural diagram of a position B in fig. 7, fig. 9 is a schematic structural diagram of a connection structure of a position column inserted in both the first through hole 323 and a second through hole 421, fig. 10 is a schematic structural diagram of a cross-sectional view of a position column inserted in the first through hole when the upper.

The utility model provides a pair of optical fiber coupling subassembly, including fixing base 1, connection lid 2, go up anchor clamps 3 and stop device 4, wherein fixing base 1, connection lid 2, go up anchor clamps 3 and be integrated into one piece.

Connecting columns 11 are arranged at two ends of the top of the fixing seat 1, first threaded holes 111 are formed in the middle of the connecting columns 11, and bolts penetrate through the first threaded holes 111 to fixedly connect the upper fixture 3 component and the laser coupler. The bottom of the fixed seat 1 is provided with an air suction groove 12, the bottom of the air suction groove 12 is provided with an air suction port 121, and the air suction port 121 is communicated with a vacuum air suction device. The vacuum suction device comprises a vacuum suction pump 13 and a suction pipe 14, wherein the suction pipe 14 is respectively communicated with the vacuum suction pump 13 and the suction port 121, and when the vacuum suction pump 13 is started, the suction pipe 14 is used for vacuumizing, so that a workpiece is fixed. Fixing base 1 bottom still has annular connection convex part 15, connects the inboard bottom in convex part 15 both ends and all opens fixed slot 151, and inside spring 1511 and the connecting block 1512 of being equipped with of fixed slot 151, the welding of the tank bottom of spring 1511 both ends respectively with fixed slot 151, the inboard one end of connecting block 1512, and fixed slot 151 is stretched out to connecting block 1512 outside one end.

The outer side surface of the connecting cover 2 is provided with a connecting concave part 21 which is in clearance fit with one end of the outer side of the connecting block 1512, and when the first spring 1511 extends, one end of the outer side of the connecting block 1512 is driven to be inserted into the connecting concave part 21, so that the fixing seat 1 and the connecting cover 2 are axially and fixedly connected, and the connecting cover 2 can rotate around an axis. The top of the connecting cover 2 is adhered with a sealing convex part 22 made of silica gel, the sealing convex part 22 is in a circular ring shape and is positioned outside the first air suction hole 232, and the top of the sealing convex part 22 is in close contact with the bottom of the air suction groove 12, so that the adsorption fixing effect of the vacuum air suction device on a workpiece is greatly improved. Six upper clamp seats 23 distributed in an annular mode are arranged at the bottom of the connecting cover 2, the required upper clamp seats 23 can be located right above the lower clamp by rotating the connecting cover 2, a threaded groove 231 is formed in the axis of each upper clamp seat 23, and a first air suction hole 232 communicated with the air suction groove 12 is formed in the bottom of each threaded groove 231.

Go up anchor clamps 3 top have with thread groove 231 complex threaded rod 31, then can fixed connection go up anchor clamps 3 and connection lid 2 in screw in thread groove 231 with threaded rod 31 top, it is all very convenient to dismantle and install, can the quick replacement correspond the last anchor clamps 3 of specification, has shortened the time of changing last anchor clamps 3 greatly. The middle part of the upper clamp 3 is provided with an accommodating groove 32 capable of accommodating a workpiece, the shape and the size of the accommodating groove 32 are consistent with those of the workpiece, and the outer side surface of the workpiece is fixed by the upper clamp 3 through the inner wall of the accommodating groove 32, so that the coaxial coupling precision of the workpiece is improved. The bottom of the accommodating groove 32 is provided with a second suction hole 321 communicated with the first suction hole 232, the aperture of the accommodating groove 32 is larger than that of the second suction hole 321, and a stepped surface is arranged between the accommodating groove 32 and the second suction hole 321 to limit the upper and lower positions of the workpiece in the accommodating groove 32, so that the workpiece is effectively prevented from being directly sucked out of the accommodating groove 32. The accommodating tank 32 is communicated with the vacuum suction pump 13 sequentially through the second suction holes 321, the first suction holes 232, the suction tank 12 and the suction pipe 14, and the workpiece is firmly adsorbed at the bottom of the accommodating tank 32 by the vacuum suction pump 13. The bottom of the two sides of the inner wall of the accommodating groove 32 is symmetrically provided with an abdicating groove 322, the bottom of the abdicating groove 322 is provided with a first through hole 323, the first through hole 323 penetrates through the side wall of the upper clamp, and the aperture of the abdicating groove 322 is larger than that of the first through hole 323.

The limiting device 4 comprises a limiting column 41, a second spring 43 and a limiting sleeve 42, the lower end side of the upper clamp 3 is provided with a concave part, a step surface is formed between the concave part and the upper clamp 3, a rail groove is formed on the step surface, the upper end of the limiting sleeve 42 is integrally formed with a guide rail, the guide rail is embedded into the rail groove, the limiting sleeve 42 can be horizontally and rotatably connected to the outer side wall of the upper clamp 3, the side wall of the limiting sleeve 42 is provided with a second through hole 421 at a position corresponding to the first through hole 323, the limiting column 41 can be synchronously inserted into the first through hole 323 and the second through hole 421 in a sliding manner, one end of the limiting column 41 is integrally formed with a limiting convex part 411, the limiting convex part 411 is located in the accommodating groove 32, the other end of the limiting column is provided with an inclined surface 412, the direction of the inclined surface 412 is opposite to the rotating direction of the limiting sleeve 42, and two ends of the; the position-limiting sleeve 42 is rotated to make the position-limiting column 4141 slide and insert into the first through hole 323 or synchronously slide and insert into the first through hole 323 and the second through hole 421. Specifically, when the position-limiting sleeve 42 rotates, when the second through hole 421 of the position-limiting sleeve 42 corresponds to the first through hole 323, the position-limiting column 41 is inserted into the first through hole 323 and the second through hole 421 simultaneously under the action of the second spring 4343, and a part of the inclined surface 412 is exposed outside the position-limiting sleeve 42, while the position-limiting protrusion 411 is completely located inside the receding groove 322, so as to prevent the workpiece from interfering with the position-limiting protrusion 411411 when the workpiece is sucked into or discharged from the accommodating groove 32; when the limiting sleeve 42 rotates to make the second through hole 421 dislocate with the first through hole 323, the first through hole 323 is blocked by the limiting sleeve 42, the limiting column 41 is inserted into the first through hole 323, during the rotation process, the inclined surface 412 is pressed by the limiting sleeve 42, so that the limiting column 41 is continuously moved toward the accommodating groove 32, and finally the limiting protrusion 411 is located inside the accommodating groove 32, and one end of the limiting column 41 having the inclined surface 412 abuts against the inner wall of the limiting sleeve 42, at this time, under the action of the limiting protrusion 411, the workpiece can be prevented from falling out of the accommodating groove 3232 and sliding out when the vacuum suction device fails, and at this time, the second spring 4343 between the limiting protrusion 411 and the abdicating groove 322 is in a stretched state, so that the second through hole 421 corresponds to the first through hole 323 next time, the second spring 4343 can rapidly pull the limiting protrusion 411 back into the abdicating groove 322. Therefore, the workpiece is clamped and released through the rotation of the limiting sleeve 42, and the clamping device has the advantages of convenience in operation, good clamping effect and improvement of coaxial coupling precision of the workpiece.

The utility model discloses during the installation, at first 3 top screw in thread grooves 231 of last anchor clamps, thereby fixed connection goes up anchor clamps 3 and last anchor clamps seat 23, then compression spring 1511, make connecting block 1512 move completely in the fixed slot 151, will connect lid 2 to place again and connect convex part 15 inboardly, after placing, spring 1511 extension and drive connecting block 1512 outside one end insert and connect the concave part 21, thereby axial fixity connects fixing base 1 and connecting lid 2, adopt the bolt to pass first screw hole 111 fixed connection go up anchor clamps 3 and laser coupling machine again, communicate breathing pipe 14 and induction port 121 at last, reconnection breathing pipe 14 and vacuum aspirator pump 13, can use anchor clamps 3 after the installation is accomplished. When the tool is used, the limiting sleeve 42 is firstly rotated to enable the second through hole 421 to correspond to the first through hole 323, the two limiting convex parts 411 are completely positioned in the yielding groove 322 under the action of the first spring 43, then the vacuum suction device is started to suck a workpiece to the bottom of the accommodating groove 32 from the bottom of the upper clamp 3, then the limiting sleeve 42 is continuously rotated to enable the second through hole 421 and the first through hole 323 to be staggered, the two second limiting convex parts 412 simultaneously move into the accommodating groove 32 and simultaneously clamp the workpiece, then the laser coupling machine is operated to move the workpiece to the upper part of the lower clamp, then the vacuum suction device is closed, then the limiting sleeve 42 is continuously rotated to enable the second through hole 421 and the first through hole 323 to correspond, further the limiting convex parts 411 are completely positioned in the yielding groove 322, and the workpiece can slide out from the accommodating groove 32 to be coaxially coupled.

The utility model discloses simple structure only needs to screw out from last anchor clamps seat 23 and goes up anchor clamps 3, can the different specifications of quick replacement last anchor clamps 3, has shortened the time of changing and has gone up anchor clamps 3 greatly, and the installation is very convenient with the dismantlement, has improved the efficiency of coupling, and with work piece firm in connection.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. An optical fiber coupling assembly is characterized by comprising a fixing seat (1), a connecting cover (2), an upper clamp (3) and a limiting device (4), wherein the fixing seat (1) is arranged on a laser coupling machine, the connecting cover (2) is fixed at the bottom of the fixing seat (1), the bottom of the connecting cover (2) is provided with an upper clamp seat (23), the upper clamp (3) is in threaded connection with the upper clamp seat (23), the axis of the upper clamp seat (23) is provided with a first air suction hole (232), an accommodating groove (32) capable of accommodating a workpiece is arranged in the upper clamp (3), the bottom of the accommodating groove (32) is provided with a second air suction hole (321) communicated with the first air suction hole (232), and the fixing seat (1) is provided with a vacuum air suction device for vacuumizing the first air suction hole (232) and the second air suction hole (321), the vacuum suction device is communicated with the first suction hole (232);

the limiting device (4) comprises a limiting column (41), a spring and a limiting sleeve (42), the limiting sleeve (42) is rotatably sleeved outside the upper clamp (3), the side wall of the upper clamp (3) is provided with a first through hole (323), the side wall of the limiting sleeve (42) is provided with a second through hole (421) at the position corresponding to the first through hole (323), the limiting column (41) can be synchronously inserted in the first through hole (323) and the second through hole (421) in a sliding way, one end of the limiting column (41) is provided with a limiting convex part (411), the limiting convex part (411) is positioned in the accommodating groove (32), a yielding groove (322) used for yielding the limiting convex part (411) is arranged on the groove wall of the accommodating groove (32), the caliber of the abdicating groove (322) is larger than that of the first perforation (323), the spring is arranged between the limiting convex part (411) and the abdicating groove (322); the limiting sleeve (42) enables the limiting column (41) to be inserted into the first through hole (323) in a sliding mode or synchronously inserted into the first through hole (323) and the second through hole (421) in a sliding mode through rotation.

2. The optical fiber coupling assembly according to claim 1, wherein the upper clamp seat (23) is provided with a threaded groove (231), and a groove bottom of the threaded groove (231) is communicated with the first air suction hole (232); the top of the upper clamp (3) is provided with a threaded rod (31) matched with the threaded groove (231).

3. The optical fiber coupling assembly according to claim 1, wherein the vacuum suction device comprises a vacuum suction pump (13) and a suction pipe (14), a suction groove (12) is formed at the bottom of the fixed base (1), a suction port (121) is formed at the bottom of the suction groove (12), and the suction port (121) is respectively communicated with the first suction hole (232) and the suction pipe (14).

4. The optical fiber coupling assembly according to claim 3, wherein the top of the connection cover (2) is provided with a sealing protrusion (22), the sealing protrusion (22) is located outside the first air suction hole (232), and the top of the sealing protrusion (22) is in close contact with the bottom of the air suction groove (12).

5. Optical fiber coupling assembly according to claim 1, wherein the receiving groove (32) has a larger aperture than the second suction hole (321).

6. The optical fiber coupling assembly according to claim 1, wherein an end of the restraining post (41) away from the restraining protrusion (411) is provided with an inclined surface (412), and the inclined surface (412) faces in a direction opposite to a rotation direction of the restraining sleeve (42).

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