Optical fiber array clamp

Abstract

The invention provides an optical fiber array clamp which comprises a clamping block and a locking knob, two clamping plates are arranged at the front end of the clamping block, limiting grooves are formed in the lower ends of the clamping plates, and optical fiber array tail fiber grooves are formed in the positions, corresponding to virtual extension lines of the limiting grooves, of the rear end of the clamping block; one clamping plate is provided with an inner threaded hole, and the other clamping plate is provided with a round hole. The locking knob penetrates through the circular holes and the internal threaded holes in the two clamping plates at the same time, and when the locking knob is screwed, the two clamping plates are close to each other for clamping; when the optical fiber crystal head is clamped and fixed, only the upper half part of the optical fiber crystal head is clamped by the clamp, and the space below the optical fiber crystal head is vacated, so that a chip test board and a chip PCB test space can be avoided, the chip test board and the chip PCB do not need to be customized independently, the design cost is reduced, and the dismounting and mounting time of the test board is canceled; the optical fiber array clamp is ingenious in structure, high in space utilization rate, small in occupied space and convenient to disassemble.

Description

Technical Field

[0001] The invention relates to the field of optical waveguide chip testing, in particular to an optical fiber array fixture. Background Art

[0002] In the optical waveguide chip test platform, the optical waveguide chip is integrated on the PCB board and placed on the test platform. The fixtures are placed on the left and right sides of the platform to clamp the optical fiber array and couple the chip to test the optical performance indicators of the chip. The chip and PCB board are relatively thin. The optical fiber array fixtures currently on the market use the lower half wrapping method to fix the crystal head of the optical fiber array. The PCB board and test platform for installing the chip need to be customized to avoid the installation space of the optical fiber array fixture. This process increases the design and production costs and affects the overall chip test experiment efficiency.

[0003] In order to solve the above problems, the present invention further improves the design of the optical fiber array fixture. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings and deficiencies of the prior art and provide a fiber array fixture that cleverly eliminates the clamping space under the crystal head of the fiber array, avoids the test platform and the chip, has high space utilization, occupies a small space, and is easy to clamp, and can be used for different waveguide chip test platforms. The technical solutions adopted by the present invention are as follows: A fiber optic array clamp comprises a clamp block and a locking knob; the front end of the clamp block is provided with two clamping plates, and a limiting groove is provided at the lower end of at least one clamping plate, and a fiber optic array pigtail groove is provided on the rear end of the clamp block corresponding to the virtual extension line of the limiting groove; one of the front ends is provided with an internal threaded hole, and the other front end is provided with a circular hole, and the locking knob passes through the internal threaded holes and the circular holes on the two clamping plates at the same time. When the locking knob is tightened, the two clamping plates approach each other, the fiber optic array crystal head is limited in the limiting groove, and the fiber optic array pigtail is gathered in the fiber optic array pigtail groove.

[0005] Preferably, the optical fiber array crystal head is made of hard material and has a regular shape, and the concave surface of the limiting groove is adapted to the shape of at least a portion of the upper surface or at least a portion of a single side surface of the optical fiber array crystal head.

[0006] Preferably, the limiting groove is arranged on the lower side of the front end of the splint, and the limiting groove is open toward the inside and the front side (since the limiting groove is arranged at the lower end of the splint, the downward side thereof must be open); the "inside" mentioned in the text of the present invention refers to the side where the two splints are close to each other, and the "front side" refers to the side facing the "front end", which can facilitate the entry of the light array and limit the light array.

[0007] Preferably, the optical fiber array pigtail groove is provided on the outer side of the clamping plate, and the optical fiber array pigtail groove is a transversely extending arc-shaped groove.

[0008] Preferably, the middle part of the front end of the clamping block is horizontally hollowed out so that two clamping plates spaced a certain distance apart are formed on both sides of the front end of the clamping block.

[0009] Preferably, a mounting base plate is integrally connected to the lower side of the clamping block, and a strip groove cooperating with the positioning and adjustment of the bolts is provided on the mounting base plate.

[0010] The beneficial effects of the present invention are as follows: the present invention provides a fiber optic array clamp, which limits the fiber optic array through the limiting groove at the lower end of the clamp and the fiber optic array pigtail groove at the rear end of the clamp block, and is locked and fixed by a locking knob; when clamping and fixing, the clamp only clamps the upper half of the fiber optic crystal head, leaving the space below the fiber optic crystal head free, which can avoid the chip test bench and the chip PCB board test space, and there is no need to customize the chip test bench and the chip PCB board separately, thus reducing the design cost and eliminating the disassembly and installation time of the test bench; the fiber optic array clamp provided by the present invention has a clever structure, high space utilization, small space occupation and easy disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still belong to the scope of the present invention.

[0012] Figure 1 A schematic diagram of a working method of an optical fiber array fixture provided by an embodiment of the present invention; Figure 2 A schematic diagram of a disassembly structure of an optical fiber array fixture provided by an embodiment of the present invention; 10. Clamp; 11. Internal threaded hole; 12. Hollow; 13. Clamp; 14. Limit groove; 15. Optical fiber array pigtail groove; 20. Locking knob; 30. Optical fiber array; 31. Optical fiber array crystal head; 32. Optical fiber array pigtail. DETAILED DESCRIPTION

[0013] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with embodiments and drawings.

[0014] It should be noted that all the directions and positions mentioned in the embodiments of the present invention, such as "upper", "lower", "front", "back", "left", "right", "inner", "outer", "top", "bottom", "side", etc., are only references to the directions or positions of the drawings. Therefore, the directions and positions used are used to illustrate and understand the present invention, but are not intended to limit the scope of protection of the present invention.

[0015] Example like Figure 1 , Figure 2 As shown, this embodiment provides a fiber array clamp, the structure of which includes: a clamp block 10, a locking knob 20, and a fiber array 30.

[0016] The front end middle part 12 of the clamp block 10 is hollowed out to form two clamping plates 13 on both sides of the front end of the clamp block 10. A limiting groove 14 matching the optical fiber array crystal head 31 is provided under each clamping plate 13. One of the clamping plates 13 on both sides has an internal threaded hole 11 at the front end, and the other has a circular hole at the front end. The optical fiber array 30 is positioned by the clamping plates 13 on both sides by threading the locking knob 20 through the circular hole and the internal threaded hole 11 and tightening the locking knob 20.

[0017] The outer side of the rear end of the clamp block 10 is provided with a fiber array pigtail groove 32. When the locking knob 20 is rotated, the clamp plates 13 on both sides approach each other, driving the limiting groove 14 to clamp the fiber array crystal head 31 and wrap the upper part of the fiber array crystal head 31; the rear end of the clamp block 10 is provided with a fiber array pigtail groove 15 for centrally limiting the fiber array pigtails.

[0018] Finally, a mounting base plate is connected below the clamp block 10 , and a strip groove cooperating with the positioning and adjustment of the bolts is provided on the mounting base plate.

[0019] The present invention provides an optical fiber array clamp, which only clamps the upper half of the optical fiber crystal head and leaves the space below the optical fiber crystal head empty. This design can avoid the chip test bench and the chip PCB board test space, and there is no need to customize the chip test bench and the chip PCB board separately, thereby reducing the design cost and eliminating the disassembly and installation time of the test bench. The optical fiber array clamp provided by the present invention has an ingenious structure, high space utilization, small space occupation and convenient disassembly.

[0020] The above disclosure is only the preferred embodiment of the present invention, which certainly cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope of the present invention.

Claims

1. An optical fiber array fixture, characterized in that: It comprises a clamping block (10) and a locking knob (20); The front end of the clamping block (10) is provided with two clamping plates (13), and the lower end of at least one clamping plate (13) is provided with a limiting groove (14), and the rear end of the clamping block (10) is provided with an optical fiber array pigtail groove (15) on a virtual extension line corresponding to the limiting groove (14); One of the two clamping plates (13) is provided with an internal threaded hole (11) at the front end, and the other is provided with a circular hole at the front end. The locking knob (20) passes through the internal threaded hole (11) and the circular hole on the clamping plate (13) at the same time. When the locking knob (20) is tightened, the two clamping plates (13) are moved closer to each other, the optical fiber array crystal head (31) is limited in the limiting groove (14), and the optical fiber array pigtail (32) is gathered in the optical fiber array pigtail groove (15).

2. The optical fiber array fixture according to claim 1, characterized in that: The optical fiber array crystal head (31) is made of a hard material and has a regular shape, and the concave surface of the limiting groove (14) is adapted to the shape of at least a portion of the upper surface or at least a portion of a single side surface of the optical fiber array crystal head (31).

3. The optical fiber array fixture according to claim 1, characterized in that: The limiting groove (14) is arranged at the lower side of the front end of the clamping plate (13), and the limiting groove (14) is open towards the inside and the front side.

4. The optical fiber array fixture according to claim 1, characterized in that: The optical fiber array pigtail groove (15) is arranged on the outer side surface of the clamping plate (13), and the optical fiber array pigtail groove (15) is a transversely extending arc-shaped groove.

5. The optical fiber array fixture according to claim 1, characterized in that: The middle part of the front end of the clamp block (10) has a transverse hollowing (12) so that two spaced-apart clamping plates (13) are formed on both sides of the front end of the clamp block (10).

6. An optical fiber array fixture according to any one of claims 1 to 5, characterized in that: A mounting base plate is integrally connected to the lower portion of the clamping block (10), and a strip groove cooperating with the bolt for positioning and adjustment is provided on the mounting base plate.

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