Chip positioning clamp for coupling of PLC type optical splitter

Abstract

The utility model relates to the technical field of optical splitter coupling, and provides a chip positioning clamp for coupling of a PLC type optical splitter, which comprises a first clamp, a second clamp and a third clamp, the second clamp and the third clamp are oppositely arranged, the first clamp is arranged between the second clamp and the third clamp, the first clamp comprises a first pressing plate and a first bottom plate, and the second clamp comprises a second pressing plate and a second bottom plate. The first pressing plate and the first bottom plate are movably connected to define a clamping space, the clamping space is configured to clamp a chip, the second clamp is configured to clamp a first optical fiber, the third clamp is configured to clamp a second optical fiber, the chip comprises a first coupling end and a second coupling end, the first coupling end is arranged opposite to the end part of the first optical fiber, and the second coupling end is arranged opposite to the end part of the second optical fiber. The second coupling end is opposite to the end part of the second optical fiber; the second clamp and the third clamp can move in the direction close to or away from the first clamp. The first pressing plate can be adjusted relative to the first bottom plate, so that chips of different sizes can be positioned in the clamping space, and the universality of the positioning clamp is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of optical splitter coupling, and in particular relates to a chip positioning fixture for PLC type optical splitter coupling. Background Art

[0002] At present, the PLC type optical splitter is an integrated waveguide optical power distribution device based on a quartz substrate. It has the characteristics of small size, wide operating wavelength range, high reliability and good splitting uniformity. The PLC optical splitter consists of a PLC optical splitter chip and a fiber array coupling at both ends. The chip has an input end and multiple output end waveguides, and the input and output fiber arrays are coupled at both ends of the chip. The precise positioning of the chip and the fiber array is very important for the coupling process, because the accuracy of the coupling directly affects the performance of the optical splitter. The related technology uses a fixture to locate the position of the chip, but the sizes of chips of different models vary. When positioning chips of different sizes, it is necessary to replace the corresponding fixture to locate the chip, which increases the operation steps, reduces work efficiency, and increases costs.

[0003] In order to solve the above technical problems, the utility model designs a chip positioning fixture for coupling of a PLC type optical splitter. Utility Model Content

[0004] The utility model provides a chip positioning fixture for coupling of a PLC type optical splitter, aiming to solve the problem that when positioning chips of different sizes, the corresponding fixture needs to be replaced.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a chip positioning fixture for coupling of a PLC type optical splitter, comprising a first fixture, a second fixture and a third fixture, the second fixture and the third fixture are arranged opposite to each other, the first fixture is arranged between the second fixture and the third fixture, the first fixture comprises a first pressure plate and a first bottom plate, the first pressure plate is movably connected to the first bottom plate, and encloses a clamping space, the clamping space is constructed to clamp a chip, the second fixture is constructed to clamp a first optical fiber, the third fixture is constructed to clamp a second optical fiber, the chip comprises a first coupling end and a second coupling end, the first coupling end is arranged opposite to the end of the first optical fiber, and the second coupling end is arranged opposite to the end of the second optical fiber; wherein the second fixture and the third fixture can both move in a direction close to or away from the first fixture.

[0006] Based on the above technical solution, the first pressure plate is provided with a movable groove, which extends along the length direction of the first pressure plate and penetrates the first pressure plate along the height direction of the first pressure plate. The first clamp also includes a limiting member, and the first bottom plate is provided with a limiting matching portion. The limiting member is penetrated in the movable groove along the height direction of the first pressure plate and is clamped with the limiting matching portion.

[0007] Optionally, the second clamp includes a second pressing plate and a second bottom plate, and the second pressing plate and the second bottom plate are movably connected; the third clamp includes a third pressing plate and a third bottom plate, and the third pressing plate and the third bottom plate are movably connected.

[0008] Based on the above technical solution, the first base plate includes a main body and an end head, the main body and the end head are movably connected, the main body includes a first end and a second end, the first pressure plate is arranged at the first end, the end head is arranged at the second end, and the height of the end head is higher than the height of the main body.

[0009] Optionally, the second clamp and the third clamp are both provided with clamping grooves, which are respectively configured to clamp the first optical fiber and the second optical fiber.

[0010] Based on the above technical solution, the clamping groove is provided with a clearance groove, which is arranged at the connection between the side wall and the bottom wall of the clamping groove, extending along the width direction of the second bottom plate or the third bottom plate and penetrating the second bottom plate or the third bottom plate.

[0011] Based on the above technical solution, the first pressing plate includes a main body and an extension portion, wherein the extension portion is connected to the main body and extends in a direction close to the end, and there is a gap between the extension portion and the first bottom plate, and the gap is suitable for abutting against the chip.

[0012] Based on the above technical solution, the chip positioning fixture for PLC type optical splitter coupling also includes a first driving member, a second driving member and a controller. The first driving member is connected to the second fixture, the second driving member is connected to the third fixture, and the controller is connected to both the first driving member and the second driving member, and can control the first driving member and the second driving member to respectively drive the second fixture and the third fixture to move in a direction close to or away from the first fixture.

[0013] Based on the above technical solution, the chip positioning fixture for PLC type optical splitter coupling also includes a first fixed seat and a second fixed seat, one side of the first fixed seat is connected to the second fixture, and the bottom side is connected to the first driving member, and one side of the second fixed seat is connected to the third fixture, and the bottom side is connected to the second driving member.

[0014] On the basis of the above technical solution, the chip positioning fixture for coupling of PLC type optical splitter further includes a reflection device and a display device, wherein the reflection device is arranged on the first fixing seat or the second fixing seat, and the display device is arranged opposite to the reflection device.

[0015] Compared with the related art, the beneficial effects of the utility model are as follows:

[0016] The utility model clamps the chip by setting a first clamp, clamps the first optical fiber by a second clamp, and clamps the second optical fiber by a third clamp. The first coupling end of the chip is arranged relative to the end of the first optical fiber, and the second coupling end of the chip is arranged relative to the end of the second optical fiber. The second clamp and the third clamp move in a direction close to the first clamp, so that the first coupling end of the chip is coupled with the end of the first optical fiber, and the second coupling end of the chip is coupled with the end of the second optical fiber. The first pressing plate is movably connected to the first bottom plate. For chips of different models, the position of the first pressing plate can be adjusted relative to the first bottom plate to adjust the size of the clamping space, so that the clamping space can be adapted to chips of different sizes, and can play a positioning role for chips of different sizes, thereby improving the versatility of the positioning clamp and improving the coupling accuracy to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only one embodiment of the utility model. For ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0018] Figure 1 It is a schematic structural diagram of a chip positioning fixture for coupling of a PLC type optical splitter provided by the utility model;

[0019] Figure 2 It is a schematic diagram of the exploded structure of the first clamp provided by the utility model;

[0020] Figure 3 It is a structural schematic diagram of the second bottom plate or the third bottom plate provided by the utility model;

[0021] Figure 4 The utility model provides Figure 3 Schematic diagram of the enlarged structure of part A shown in FIG.

[0022] In the figure: 1. first clamp; 11. first pressure plate; 111. movable groove; 112. main body; 113. extension part; 12. first bottom plate; 121. limit fitting part; 122. main body; 123. end head; 124. first end; 125. second end; 13. limit member; 2. second clamp; 21. second pressure plate; 22. second bottom plate; 3. third clamp; 31. third pressure plate; 32. third bottom plate; 33. clamping groove; 331. make way groove; 4. first fixed seat; 5. second fixed seat. DETAILED DESCRIPTION

[0023] The utility model is further described below with reference to the accompanying drawings and examples:

[0024] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] Combination Figure 1-4 As shown, an embodiment of the present disclosure provides a chip positioning fixture for PLC type optical splitter coupling, comprising a first fixture 1, a second fixture 2 and a third fixture 3, wherein the second fixture 2 and the third fixture 3 are arranged relative to each other, the first fixture 1 is arranged between the second fixture 2 and the third fixture 3, the first fixture 1 comprises a first pressing plate 11 and a first bottom plate 12, the first pressing plate 11 is movably connected to the first bottom plate 12 to enclose a clamping space, the clamping space is constructed to clamp a chip, the second fixture 2 is constructed to clamp a first optical fiber, the third fixture 3 is constructed to clamp a second optical fiber, the chip comprises a first coupling end and a second coupling end, the first coupling end is arranged relative to the end of the first optical fiber, and the second coupling end is arranged relative to the end of the second optical fiber; wherein the second fixture 2 and the third fixture 3 can both move in a direction close to or away from the first fixture 1.

[0028] The chip positioning fixture for coupling of the PLC type optical splitter provided by the embodiment of the present disclosure is adopted. The first fixture 1 clamps the chip, the second fixture 2 clamps the first optical fiber, and the third fixture 3 clamps the second optical fiber. The first coupling end of the chip is arranged relative to the end of the first optical fiber, and the second coupling end of the chip is arranged relative to the end of the second optical fiber. The second fixture 2 and the third fixture 3 move in the direction close to the first fixture 1, so that the first coupling end of the chip is coupled with the end of the first optical fiber, and the second coupling end of the chip is coupled with the end of the second optical fiber. The first pressing plate 11 is movably connected to the first bottom plate 12. For chips of different models, the position of the first pressing plate 11 can be adjusted relative to the first bottom plate 12 to adjust the size of the clamping space, so that the clamping space can be adapted to chips of different sizes, and can play a positioning role for chips of different sizes, thereby improving the versatility of the positioning fixture and improving the coupling accuracy to a certain extent.

[0029] Based on the above technical solution, Figure 1 and Figure 2 As shown, the first pressure plate 11 is provided with a movable groove 111, which extends along the length direction of the first pressure plate 11 and penetrates the first pressure plate 11 along the height direction of the first pressure plate 11, the first clamp 1 also includes a limiting member 13, and the first bottom plate 12 is provided with a limiting matching portion 121, the limiting member 13 is penetrated in the movable groove 111 along the height direction of the first pressure plate 11, and is clamped with the limiting matching portion 121.

[0030] The position of the first pressure plate 11 can be adjusted relative to the first base plate 12. The relative positions of the first pressure plate 11 and the first base plate 12 are adjusted according to the size of the chip. After the limiter 13 is inserted into the movable groove 111, it is snapped into the limiter fitting part 121. The movable groove 111 extends along the length direction of the first pressure plate 11, so that the adjustment length range of the position of the first pressure plate 11 is the length of the movable groove 111. The limiter 13 cooperates with the limiter fitting part 121 to fix the relative position of the first pressure plate 11 and the first base plate 12 to position the chip.

[0031] Specifically, the limiting member 13 can be a screw, and the limiting matching part 121 can be a screw hole. The screw and the screw hole cooperate to fix the first pressure plate 11 to the first bottom plate 12; the limiting member 13 can also be a bayonet pin, and the limiting matching part 121 can also be a bayonet socket, and the bayonet pin is snapped into the bayonet socket to fix the first pressure plate 11 to the first bottom plate 12.

[0032] Alternatively, if Figure 1 As shown, the second clamp 2 includes a second pressing plate 21 and a second bottom plate 22, which are movably connected; the third clamp 3 includes a third pressing plate 31 and a third bottom plate 32, which are movably connected.

[0033] The second pressing plate 21 and the second bottom plate 22 can be relatively movable, and the position of the second pressing plate 21 can be adjusted relative to the second bottom plate 22 to adjust the size of the position where the second fixture 2 clamps the first optical fiber, so that the second fixture 2 can clamp different types of first optical fibers and adapt to first optical fibers of different sizes, and can play a positioning role for different types of first optical fibers, thereby improving the versatility of the positioning fixture. The third pressing plate 31 and the third bottom plate 32 are movably connected, and the effect is similar to that of the second fixture 2, which will not be repeated here.

[0034] Based on the above technical solution, Figure 1 and Figure 2 As shown, the first base plate 12 includes a main body 122 and an end head 123, and the main body 122 and the end head 123 are movably connected. The main body 122 includes a first end 124 and a second end 125. The first pressure plate 11 is arranged at the first end 124, and the end head 123 is arranged at the second end 125. The height of the end head 123 is higher than the height of the main body 122.

[0035] The first pressing plate 11, the main body 122 and the end head 123 jointly enclose a clamping space, and the height of the end head 123 is higher than the height of the main body 122, so that the first pressing plate 11, the main body 122 and the end head 123 form a groove, and the chip is clamped in the groove. The first pressing plate 11 is movably connected to the first bottom plate 12, and the end head 123 is movably connected to the main body 122, so that the depth of the groove can be adjusted to adapt to the positioning of chips of various thicknesses.

[0036] Alternatively, if Figure 1 As shown, the second clamp 2 and the third clamp 3 are both provided with clamping grooves 33, which are respectively configured to clamp the first optical fiber and the second optical fiber.

[0037] Based on the above technical solution, Figure 3 and Figure 4 As shown, the clamping groove 33 is provided with a clearance groove 331, and the clearance groove 331 is provided at the connection between the side wall and the bottom wall of the clamping groove 33, extending along the width direction of the second bottom plate 22 or the third bottom plate 32 and penetrating the second bottom plate 22 or the third bottom plate 32.

[0038] The end of the first optical fiber arranged opposite to the first coupling end of the chip is provided with a substrate, and the end of the second optical fiber arranged opposite to the second coupling end of the chip is also provided with a substrate. The chip is coupled with the first coupling end and the second coupling end to achieve coupling with the first optical fiber and the second optical fiber. The setting of the yield groove 331 prevents the corner of the substrate from interfering with the connection between the side wall and the bottom wall of the clamping groove 33 when the substrate is clamped in the clamping groove 33, so that the substrate and the side wall of the clamping groove 33 can be more closely fitted, so that the positioning of the substrate, that is, the first optical fiber, is more stable, and the coupling accuracy is improved.

[0039] Based on the above technical solution, Figure 2 As shown, the first pressing plate 11 includes a main body 112 and an extension portion 113, wherein the extension portion 113 is connected to the main body 112 and extends in a direction close to the end 123, and there is a gap between the extension portion 113 and the first bottom plate 12, wherein the gap is suitable for abutting against the chip.

[0040] The above-mentioned embodiment mentioned that the first pressure plate 11, the main body 122 and the end head 123 are jointly arranged to form a clamping space, the main body 112 and the end head 123 of the first pressure plate 11 can limit the movement of the chip along the length direction of the first clamp 1, and there is a gap between the extension portion 113 of the first pressure plate 11 and the first bottom plate 12, and the extension portion 113 and the first bottom plate 12 can jointly limit the movement of the chip along the height direction of the first clamp 1, and the first pressure plate 11 and the first bottom plate 12 limit the chip in two directions, which can achieve a better positioning effect on the chip.

[0041] Based on the above technical solution, the chip positioning fixture for PLC type optical splitter coupling also includes a first driving member, a second driving member and a controller, the first driving member is connected to the second fixture 2, the second driving member is connected to the third fixture 3, and the controller is connected to both the first driving member and the second driving member, and can control the first driving member and the second driving member to respectively drive the second fixture 2 and the third fixture 3 to move in a direction close to or away from the first fixture 1.

[0042] The first driving member and the second driving member can be a six-dimensional high-precision adjustment table, which can adjust the positions of the second clamp 2 and the third clamp 3 in multiple directions to achieve maximum coupling alignment between the first optical fiber, the second optical fiber and the chip and reduce light loss.

[0043] Based on the above technical solution, Figure 1 As shown, the chip positioning fixture for PLC type optical splitter coupling also includes a first fixing seat 4 and a second fixing seat 5, one side of the first fixing seat 4 is connected to the second fixture 2, and the bottom side is connected to the first driving member, and one side of the second fixing seat 5 is connected to the third fixture 3, and the bottom side is connected to the second driving member.

[0044] On the basis of the above technical solution, the chip positioning fixture for coupling of PLC type optical splitter further comprises a reflection device and a display device, wherein the reflection device is arranged on the first fixing seat 4 or the second fixing seat 5, and the display device is arranged opposite to the reflection device.

[0045] When the first optical fiber is coupled to the first coupling end of the chip, a beam of visible light is transmitted from the first optical fiber to the chip, and then output from the chip to the reflecting device. The reflecting device reflects the visible light to the display device, and the display device displays the shape of the light spot. By adjusting the input angle of the first optical fiber, the coupling accuracy can be further improved and the coupling loss can be reduced.

[0046] The present invention is described above by way of examples, but the present invention is not limited to the above specific embodiments, and any changes or modifications based on the present invention belong to the scope of protection required by the present invention.

Claims

1. A chip positioning fixture for PLC type optical splitter coupling, characterized in that: The invention comprises a first clamp (1), a second clamp (2) and a third clamp (3), wherein the second clamp (2) and the third clamp (3) are arranged opposite to each other, the first clamp (1) is arranged between the second clamp (2) and the third clamp (3), the first clamp (1) comprises a first pressing plate (11) and a first bottom plate (12), the first pressing plate (11) and the first bottom plate (12) are movably connected to enclose a clamping space, the clamping space is configured to clamp a chip, the second clamp (2) is configured to clamp a first optical fiber, the third clamp (3) is configured to clamp a second optical fiber, the chip comprises a first coupling end and a second coupling end, the first coupling end is arranged opposite to an end of the first optical fiber, and the second coupling end is arranged opposite to an end of the second optical fiber; Wherein, the second clamp (2) and the third clamp (3) are both capable of moving in a direction approaching or moving away from the first clamp (1).

2. The chip positioning fixture for PLC type optical splitter coupling according to claim 1, characterized in that: The first pressing plate (11) is provided with a movable groove (111), and the movable groove (111) extends along the length direction of the first pressing plate (11) and passes through the first pressing plate (11) along the height direction of the first pressing plate (11). The first clamp (1) also includes a limiting member (13), and the first bottom plate (12) is provided with a limiting matching portion (121). The limiting member (13) passes through the movable groove (111) along the height direction of the first pressing plate (11) and is clamped with the limiting matching portion (121).

3. The chip positioning fixture for PLC type optical splitter coupling according to claim 1, characterized in that: The second clamp (2) comprises a second pressing plate (21) and a second bottom plate (22), and the second pressing plate (21) and the second bottom plate (22) are movably connected; and / or the third clamp (3) comprises a third pressing plate (31) and a third bottom plate (32), and the third pressing plate (31) and the third bottom plate (32) are movably connected.

4. The chip positioning fixture for PLC type optical splitter coupling according to claim 1, characterized in that: The first bottom plate (12) comprises a main body (122) and an end head (123), the main body (122) and the end head (123) are movably connected, the main body (122) comprises a first end (124) and a second end (125), the first pressing plate (11) is arranged at the first end (124), the end head (123) is arranged at the second end (125), and the height of the end head (123) is higher than the height of the main body (122).

5. The chip positioning fixture for PLC type optical splitter coupling according to claim 1, characterized in that: The second clamp (2) and the third clamp (3) are both provided with clamping grooves (33) and are respectively configured to clamp the first optical fiber and the second optical fiber.

6. The chip positioning fixture for PLC type optical splitter coupling according to claim 5, characterized in that: The clamping groove (33) is provided with a clearance groove (331), which is arranged at the connection between the side wall and the bottom wall of the clamping groove (33), extending along the width direction of the second bottom plate (22) or the third bottom plate (32) and penetrating the second bottom plate (22) or the third bottom plate (32).

7. The chip positioning fixture for coupling of a PLC type optical splitter according to any one of claims 1 to 6, characterized in that: The first pressing plate (11) comprises a main body (112) and an extension portion (113); the extension portion (113) is connected to the main body (112) and extends in a direction close to the end head (123); there is a gap between the extension portion (113) and the first bottom plate (12), and the gap is suitable for abutting against the chip.

8. The chip positioning fixture for coupling of a PLC type optical splitter according to any one of claims 1 to 6, characterized in that: The invention also comprises a first driving member, a second driving member and a controller, wherein the first driving member is connected to the second clamp (2), the second driving member is connected to the third clamp (3), and the controller is connected to both the first driving member and the second driving member, and can control the first driving member and the second driving member to respectively drive the second clamp (2) and the third clamp (3) to move in a direction approaching or away from the first clamp (1).

9. The chip positioning fixture for coupling of a PLC type optical splitter according to any one of claims 1 to 6, characterized in that: It also comprises a first fixing seat (4) and a second fixing seat (5), wherein one side of the first fixing seat (4) is connected to the second clamp (2), and the bottom side is connected to the first driving member, and one side of the second fixing seat (5) is connected to the third clamp (3), and the bottom side is connected to the second driving member.

10. The chip positioning fixture for coupling of a PLC type optical splitter according to any one of claims 1 to 6, characterized in that: It also comprises a reflecting device and a display device, wherein the reflecting device is arranged on the first fixing seat (4) or the second fixing seat (5), and the display device is arranged opposite to the reflecting device.

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