CN212553566U

CN212553566U - Positioning mechanism for assembling wave plate of duplex optical rotator

Info

Publication number: CN212553566U
Application number: CN202021033632.5U
Authority: CN
Inventors: 于浩; 张彬
Original assignee: Suzhou Donghui Optical Co ltd
Current assignee: Suzhou Donghui Optical Co ltd
Priority date: 2020-06-08
Filing date: 2020-06-08
Publication date: 2021-02-19
Anticipated expiration: 2030-06-08

Abstract

The utility model discloses a positioning mechanism for equipment of duplex optical rotation ware wave plate, include: the device comprises a fixed plate, a slide rail, a slide block, a push plate and a positioning block; the fixed plate is arranged at one end of the slide rail, the slide block is arranged on the slide rail, and the slide block is connected with the slide rail in a sliding manner; the push plate is arranged on the sliding block and is connected with the sliding rail through the sliding block; the fixed plate comprises a supporting surface and a fixed surface, the supporting surface and the fixed surface are perpendicular to each other, and the fixed surface is parallel to the bottom surface of the chevron-shaped magnetic block; the positioning block is arranged on one side, close to the fixed plate, of the push plate and comprises a positioning surface, the positioning surface is arranged on one surface, facing the fixed plate, of the positioning block, and the positioning surface is parallel to the fixed surface; the top surface of the positioning block is higher than the mountain-shaped magnetic block. In this way, the utility model discloses can guarantee the depth of parallelism of chevron magnetic path and half-wave plate in the assembling process, effectively improve positioning accuracy, promote the accuracy of optical axis location, improve the product quality.

Description

Positioning mechanism for assembling wave plate of duplex optical rotator

Technical Field

The utility model relates to an optics equipment technical field especially relates to a positioning mechanism for equipment of duplex optical rotator wave plate.

Background

The diplexer is a common optical rotation structure, and is commonly used in optical communication passive devices such as circulators and comb filters, which require independent optical rotation of multiple channels. The structure of the magnetic field generator is shown in figure 1 and comprises a chevron-shaped magnetic block, a Faraday rotator and a half-wave plate. The Faraday rotator and the half-wave plate are fixedly combined with the chevron-shaped magnetic block through glue. The half-wave plate has a specific optical axis direction according to product design, and the optical axis direction of the half-wave plate has a strict relative angle relation with the chevron-shaped magnetic block so as to change the polarization state of light and realize an optical rotation function.

In the traditional assembly method, under a microscope, an operator manually adjusts the relative position and angle of the half-wave plate and the chevron-shaped magnetic block by using tweezers, so that the operation difficulty is high, the positioning precision is poor, and the product consistency is difficult to effectively control; meanwhile, the operation is carried out under a microscope for a long time, and visual fatigue is easily generated by an operator, so that the assembly efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the main technical problem who solves provides a positioning mechanism for duplex optical rotation ware wave plate equipment, can guarantee the depth of parallelism of chevron magnetic path and half-wave plate in the assembling process, effectively improves positioning accuracy, promotes the accuracy of optical axis location, improves the product quality.

In order to achieve the above object, the technical solution of the present invention is:

a positioning mechanism for a duplex optical rotator wave plate assembly, comprising: the device comprises a fixed plate, a slide rail, a slide block, a push plate and a positioning block; the fixed plate is arranged at one end of the slide rail, the slide block is arranged on the slide rail, and the slide block is connected with the slide rail in a sliding manner; the push plate is arranged on the sliding block and is connected with the sliding rail through the sliding block; the fixing plate comprises a supporting surface and a fixing surface, the supporting surface and the fixing surface are perpendicular to each other, and the fixing surface is parallel to the bottom surface of the chevron-shaped magnetic block; the positioning block is arranged on one side, close to the fixed plate, of the push plate, the positioning block comprises a positioning surface, the positioning surface is arranged on one surface, facing the fixed plate, of the positioning block, and the positioning surface is parallel to the fixed surface; the top surface of the positioning block is higher than the mountain-shaped magnetic block.

Preferably, the fixed plate is provided with a spacing groove, and the spacing groove is arranged at the joint of the supporting surface and the fixed surface.

Preferably, the fixing plate is made of iron.

Preferably, a fixed magnetic block is arranged in the fixed plate, the push plate is made of iron, and the push plate is connected with the fixed plate through the fixed magnetic block.

Preferably, the push plate is detachably connected with the sliding block through a bolt.

Preferably, the width of the positioning block is smaller than that of the groove in the chevron-shaped magnetic block.

Preferably, the fixing device further comprises a stop block, and the stop block is arranged at one end, far away from the fixing plate, of the sliding rail.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model has the following beneficial effect:

the positioning mechanism for assembling the wave plate of the duplex optical rotator is provided, the chevron-shaped magnetic block and the half-wave plate are respectively positioned through the fixed block and the positioning block, the parallelism of the chevron-shaped magnetic block and the half-wave plate is ensured in the assembling process, the positioning precision is effectively improved, the accuracy of optical axis positioning is improved, and the product quality is improved; and the positioning is carried out through the fixed block and the positioning block, so that the consistency of assembly is improved, the influence of the state of personnel on the assembly quality is reduced, and the stability of the product is improved.

Drawings

Fig. 1 is a schematic structural diagram of the disclosed mezzanine duplex optical rotator.

Fig. 2 is a schematic structural diagram of a positioning mechanism for assembling a wave plate of a duplex optical rotator according to the present invention.

Fig. 3 is a schematic structural diagram of a fixing plate in a positioning mechanism for assembling a wave plate of a duplex optical rotator according to the present invention.

Fig. 4 is a schematic structural diagram of a push plate in a positioning mechanism for assembling a wave plate of a duplex optical rotator according to the present invention.

Fig. 5 is a schematic structural diagram of a push plate contacting a fixed plate in a positioning mechanism for assembling a wave plate of a duplex optical rotator according to the present invention.

Fig. 6 is a schematic structural diagram of the positioning mechanism for assembling the wave plate of the duplex optical rotator of the present invention, in which the half-wave plate is placed after the push plate contacts the fixed plate.

Description of reference numerals:

the device comprises a chevron-shaped magnetic block 11, a half-wave plate 12, a Faraday rotation plate 13, a fixed plate 2, a supporting surface 21, a fixed surface 22, a clearance groove 23, a slide rail 3, a slide block 4, a push plate 5, a positioning block 6, a positioning surface 61 and a stop dog 7.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

Referring to the attached drawings, a positioning mechanism for assembling a wave plate of a duplex optical rotator is used for assembling a chevron-shaped magnetic block 11 and a half-wave plate 12 in the wave plate of the duplex optical rotator, and the installation of a Faraday rotator 13 is completed in other assembling equipment. It should be noted that, the bottom surface and the side of the mountain-shaped magnetic block 11 mentioned in the present invention are based on the placement position of the mountain-shaped magnetic block 11 in fig. 1, that is, the bottom surface of the mountain-shaped magnetic block 11 mentioned in the present invention is the bottom surface of the mountain-shaped magnetic block 11 in fig. 1, and the side of the mountain-shaped magnetic block 11 mentioned in the present invention is the side of the mountain-shaped magnetic block 11 in fig. 1.

The positioning mechanism comprises a fixed plate 2, a slide rail 3, a slide block 4, a push plate 5 and a positioning block 6. The fixed plate 2 is arranged at one end of the slide rail 3, the slide block 4 is arranged on the slide rail 3, and the slide block 4 is connected with the slide rail 3 in a sliding manner. The push plate 5 is arranged on the sliding block 4, the push plate 5 is connected with the sliding rail 3 through the sliding block 4, and the push plate 5 can slide on the sliding rail 3 through the sliding block 4. The push plate 5 is detachably connected with the sliding block 4 through a bolt, so that the push plate 5 can be conveniently replaced.

In order to prevent the sliding block 4 from sliding out of the sliding rail 3, the positioning mechanism further comprises a stopper 7, and the stopper 7 is arranged at one end of the sliding rail 3 far away from the fixed plate 2, namely, the fixed plate 2 and the stopper 7 are respectively arranged at two ends of the sliding rail 3. The stop dog 7 is fixed on the slide rail 3 through a bolt, so that the slide block 4 is prevented from exceeding the stroke and falling off from the slide rail 3 in the sliding process.

The fixing plate 2 comprises a supporting surface 21 and a fixing surface 22, and the supporting surface 21 and the fixing surface 22 are perpendicular to each other, i.e. a step is formed on the fixing plate 2. The supporting surface 21 is used for supporting the magnetic block 11, and the fixing surface 22 is used for positioning the magnetic block 11. The mountain-shaped magnetic block 11 is placed on the fixing plate 2 in an inverted and horizontal manner, the side surface of the mountain-shaped magnetic block 11 is in contact with the supporting surface 21, and the bottom surface of the mountain-shaped magnetic block 11 is in contact with the fixing surface 22.

In order to better position the mountain-shaped magnetic block 11, the fixing plate 2 is provided with the avoiding groove 23, the avoiding groove 23 is arranged at the joint of the supporting surface 21 and the fixing surface 22, the mountain-shaped magnetic block 11 can be accurately positioned on the fixing plate 2 through the arrangement of the avoiding groove 23, and the right-angle side of the mountain-shaped magnetic block 11 cannot be damaged.

The fixed plate 2 is made of iron, so that the chevron-shaped magnetic block 11 is connected to the fixed plate 2 through the magnetic force of the chevron-shaped magnetic block 11, and the stability of the position of the chevron-shaped magnetic block 11 on the fixed plate 2 is ensured through the magnetic force. Be provided with fixed magnetic path in the fixed plate 2, the material of push pedal 5 is iron, and push pedal 5 is connected through fixed magnetic path with fixed plate 2. And one surface of the fixing plate 2 facing the push plate 5 is provided with a circular groove for placing a fixing magnetic block. The fixed magnetic block is connected with the fixed plate 2 in an adhesive mode, is located inside the circular groove and does not exceed the side face of the push plate 5.

When the push plate 5 moves to be close to the fixed plate 2 along the motion direction of the guide rail, the push plate 5 is attracted by the magnetic force of the fixed magnetic block, and the push plate 5 and the fixed plate 2 form close surface contact. At the moment, the position of the positioning block 6 on the push plate 5 is also fixed, and correspondingly, the relative position of the half-wave plate 12 and the chevron-shaped magnetic block 11 can also be accurately positioned.

The positioning block 6 is arranged on one side of the push plate 5 close to the fixing plate 2, and the positioning block 6 and the push plate 5 can be integrally formed. The top surface of the positioning block 6 is higher than the mountain-shaped magnetic block 11, and the positioning block 6 is used for positioning the half-wave plate 12. The positioning block 6 is used for being in the same plane with the surface of the wave plate in contact with the same plane and is parallel to the fixing surface 22 of the fixing plate 2, so as to ensure the assembling parallelism of the half-wave plate 12. The positioning block 6 comprises a positioning surface 61, and the positioning surface 61 is arranged on one surface of the positioning block 6 facing the fixing plate 2. The fixing surface 22 is arranged in parallel with the bottom surface of the chevron-shaped magnetic block 11, and the positioning surface 61 is arranged in parallel with the fixing surface 22. When the half-wave plate 12 is placed on the chevron-shaped magnetic block 11, the half-wave plate 12 is abutted against the positioning surface 61 of the positioning block 6, so that the half-wave plate 12 and the chevron-shaped magnetic block 11 can be effectively ensured to be placed in parallel.

The push plate 5 is pushed to slide to a position close to the fixing plate 2, the positioning block 6 is movably inserted into a groove of the mountain-shaped magnetic block 11, the width of the positioning block 6 is smaller than that of the groove in the mountain-shaped magnetic block 11, so that the positioning block 6 is not in contact with the mountain-shaped magnetic block 11, when the half-wave plate 12 is positioned, the position of the push plate 5 is prevented from being limited by the size of the mountain-shaped magnetic block 11, and the positioning block 6 is prevented from being bonded with the mountain-shaped magnetic block 11 in a subsequent glue dispensing process.

In the actual assembly process, the push plate 5 is moved to the vicinity of the stop 7, and the clamping chevron-shaped magnetic block 11 is placed on the supporting surface 21 of the fixed plate 2 to abut against the fixing surface 22 of the fixed plate 2. And adjusting the position of the mountain-shaped magnetic block 11 to enable the positioning block 6 on the push plate 5 to be positioned in the groove of the mountain-shaped magnetic block 11. And the push plate 5 is moved to the vicinity of the fixed plate 2, and under the action of the suction force of the fixed magnetic block, the push plate 5 is in close contact with the fixed plate 2. The half-wave plate 12 is clamped on the chevron-shaped magnetic block 11, and the position of the half-wave plate 12 is adjusted by using tweezers, so that the half-wave plate 12 is abutted against the positioning surface 61 of the positioning block 6, namely, the half-wave plate 12 is arranged in parallel with the positioning surface 61 of the positioning block 6. Dispensing glue at the contact edge of the half-wave plate 12 and the chevron-shaped magnetic block 11, after the glue is fully paved, confirming that the chevron-shaped magnetic block 11 and the half-wave plate 12 are close to the tool again, and curing the glue by irradiating ultraviolet light to finish assembly.

The above is only the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and all the same principles are included in the protection scope of the present invention.

Claims

1. A positioning mechanism for a wave plate assembly of a duplex optical rotator, comprising: the device comprises a fixed plate, a slide rail, a slide block, a push plate and a positioning block; the fixed plate is arranged at one end of the slide rail, the slide block is arranged on the slide rail, and the slide block is connected with the slide rail in a sliding manner; the push plate is arranged on the sliding block and is connected with the sliding rail through the sliding block; the fixing plate comprises a supporting surface and a fixing surface, the supporting surface and the fixing surface are perpendicular to each other, and the fixing surface is parallel to the bottom surface of the chevron-shaped magnetic block; the positioning block is arranged on one side, close to the fixed plate, of the push plate, the positioning block comprises a positioning surface, the positioning surface is arranged on one surface, facing the fixed plate, of the positioning block, and the positioning surface is parallel to the fixed surface; the top surface of the positioning block is higher than the mountain-shaped magnetic block.

2. The positioning mechanism of claim 1 for a waveplate assembly of a diplexer optical rotator in which: the fixed plate is provided with a avoiding groove, and the avoiding groove is formed in the joint of the supporting surface and the fixed surface.

3. The positioning mechanism of claim 1 for a waveplate assembly of a diplexer optical rotator in which: the fixing plate is made of iron.

4. The positioning mechanism of claim 1 for a waveplate assembly of a diplexer optical rotator in which: the push plate is characterized in that a fixed magnetic block is arranged in the fixed plate, the push plate is made of iron, and the push plate is connected with the fixed plate through the fixed magnetic block.

5. The positioning mechanism of claim 1 for a waveplate assembly of a diplexer optical rotator in which: the push plate is detachably connected with the sliding block through a bolt.

6. The positioning mechanism of claim 1 for a waveplate assembly of a diplexer optical rotator in which: the width of the positioning block is smaller than that of the groove in the chevron-shaped magnetic block.

7. The positioning mechanism of claim 1 for a waveplate assembly of a diplexer optical rotator in which: the slide rail is characterized by further comprising a stop block, wherein the stop block is arranged at one end, far away from the fixed plate, of the slide rail.