Attenuator clamping jig

Abstract

The utility model relates to the technical field of light source detection, in particular to an attenuator clamping jig which comprises a supporting frame, a light source incidence hole is formed in the middle of the supporting frame, a threaded rod and a sliding rod are arranged on the two sides of the light source incidence hole respectively, the top end of the threaded rod and the top end of the sliding rod are fixedly connected with the supporting frame, and an installation frame is arranged at the lower end of the threaded rod and the lower end of the sliding rod. The upper ends of the two sides of the mounting frame are fixedly connected with mounting ring frames, the middle of a threaded rod is in threaded connection with a driving ring, a plurality of handles are fixedly connected to the side wall of the driving ring, a clamping supporting plate is arranged in the middle of the mounting frame and can be connected with the attenuator through extrusion of a buckle or a bolt, and positioning legs are arranged at the lower ends of the two sides of the clamping supporting plate. Two guide blocks are arranged in the middle of the mounting frame, fixing grooves are formed in the inner walls of the two sides of the mounting frame, and positioning pieces are fixedly connected to the inner walls of the fixing grooves, the distance between the attenuator and a light source incidence hole can be changed after the attenuator is mounted, and the type of the attenuator can be replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of light source detection, in particular to an attenuator clamping fixture. Background Art

[0002] Optical signals will attenuate during transmission, so the required optical signal energy is tested. By predicting the attenuation of the optical signal energy, the optical density of the test sample can be tested. The existing optical signal energy detection is to irradiate the optical signal onto the attenuator. During the detection, the two attenuators need to be glued to each other and then glued to the fixture, which will make the attenuator unable to move and cannot test the effect of distance on the attenuation of optical signal energy. Utility Model Content

[0003] The purpose of the utility model is to provide an attenuator clamping fixture to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an attenuator clamping fixture, comprising a support frame, a light source incident hole is provided in the middle of the support frame, threaded rods and sliding rods are respectively provided on both sides of the light source incident hole, the top ends of the threaded rods and the sliding rods are fixedly connected to the support frame, the lower ends of the threaded rods and the sliding rods are provided with mounting frames, the upper ends of both sides of the mounting frames are fixedly connected to mounting ring frames, the middle of the threaded rods is threadedly connected to a driving ring, a plurality of handles are fixedly connected to the side walls of the driving ring, a clamping pallet is provided in the middle of the mounting frame, the clamping pallet can be connected to the attenuator by buckles or bolts, positioning legs are provided at the lower ends of both sides of the clamping pallet, two guide blocks are provided in the middle of the mounting frame, fixing grooves are provided on the inner walls of both sides of the mounting frame, and positioning sheets are fixedly connected to the inner walls of the fixing grooves.

[0005] Preferably, the upper end of the mounting ring frame is a ring structure, the mounting ring frame on the left side is sleeved with the threaded rod, and the mounting ring frame on the right side is slidably connected with the sliding rod.

[0006] Preferably, an inner wall of the driving ring is provided with an internal thread, the driving ring and the threaded rod are threadedly connected, and the mounting ring frame on the left side is rotatably connected to the side end of the driving ring.

[0007] Preferably, the fixing groove is arranged obliquely, the upper end of the guide block is arranged obliquely, and the fixing groove and the upper end of the guide block are smoothly connected.

[0008] Preferably, a positioning groove is provided at a side end of the positioning leg, and the positioning leg and the clamping bracket are connected via a spring shaft.

[0009] Preferably, the positioning piece is an arc-shaped structure, and the positioning piece is an elastic iron sheet.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: by fixing the attenuator on the clamping pallet, and fixing the clamping pallet on the mounting frame, and adjusting the position of the mounting frame by rotating the drive ring, the relationship between the distance and the attenuation of the optical signal energy can be tested, so that the measurement is more accurate; the two attenuators are limited and fixed by using the clamping pallet, and the clamping pallet and the mounting frame are positioned and fixed, which is simpler than traditional adhesive fixing, and can avoid the influence of the adhesive on the optical signal energy detection, thereby ensuring the accuracy of the measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the attenuator clamping fixture connection.

[0012] Figure 2 This is a schematic diagram of the mounting bracket connection.

[0013] Figure 3 This is an enlarged schematic diagram of point A.

[0014] In the figure: 1 support frame, 2 light source incident hole, 3 mounting frame, 4 clamping support plate, 5 threaded rod, 6 sliding rod, 7 mounting ring frame, 8 driving ring, 9 guide block, 10 fixing groove, 11 positioning leg, 12 positioning groove, 13 positioning sheet. DETAILED DESCRIPTION

[0015] In order to deepen the understanding and recognition of the utility model, the technical solutions in the embodiments of the utility model will be clearly and completely described and introduced in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments, and are not intended to limit the embodiments in any form. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] See also Figure 1-3The utility model provides a technical solution: an attenuator clamping fixture, including a support frame 1, a light source incident hole 2 is provided in the middle of the support frame 1, and threaded rods 5 and sliding rods 6 are respectively provided on both sides of the light source incident hole 2, the tops of the threaded rods 5 and the sliding rods 6 are fixedly connected to the support frame 1, and the lower ends of the threaded rods 5 and the sliding rods 6 are provided with mounting frames 3, the upper ends of both sides of the mounting frame 3 are fixedly connected to the mounting ring frame 7, the middle of the threaded rods 5 is threadedly connected with a driving ring 8, and a plurality of handles are fixedly connected to the side wall of the driving ring 8, a clamping support plate 4 is provided in the middle of the mounting frame 3, the clamping support plate 4 can be connected to the attenuator by buckles or bolts, positioning legs 11 are provided at the lower ends of both sides of the clamping support plate 4, two guide blocks 9 are provided in the middle of the mounting frame 3, and fixing grooves 10 are provided on the inner walls of both sides of the mounting frame 3, and positioning pieces 13 are fixedly connected to the inner walls of the fixing grooves 10, and the two attenuators are fixedly connected to the clamping support plate 4, and the clamping support plate 4 is fixedly connected to the mounting frame 3.

[0017] The upper end of the mounting ring frame 7 is a ring structure. The left mounting ring frame 7 is sleeved with the threaded rod 5, and the right mounting ring frame 7 is slidably connected to the sliding rod 6. An internal thread is provided on the inner wall of the driving ring 8. The driving ring 8 and the threaded rod 5 are threadedly connected. The left mounting ring frame 7 is rotatably connected to the side end of the driving ring 8. By rotating the driving ring, the driving ring can move on the threaded rod, thereby driving the mounting ring frame 7 to move on the sliding rod, and adjusting the position of the mounting frame 3, thereby changing the distance between the attenuator and the light source incident hole 2, thereby accurately measuring the influence of the distance on the attenuation of the optical signal energy.

[0018] The fixing groove 10 is set at an angle, and the upper end of the guide block 9 is set at an angle. The fixing groove 10 and the upper end of the guide block 9 are smoothly connected. A positioning groove 12 is provided at the side end of the positioning leg 11. The positioning leg 11 and the clamping bracket are connected by a spring shaft. The positioning piece 13 is an arc structure. The positioning piece 13 is an elastic iron sheet. When the clamping bracket 4 is installed, the positioning leg 11 is blocked by the guide block 9, and the positioning leg 11 rotates, so that the positioning leg 11 is clamped into the fixing groove 10. The positioning leg 11 squeezes the positioning piece 13 to deform it until the positioning piece 13 is facing the positioning groove. The positioning piece 13 is reset and the positioning groove 12 is clamped with each other, so that the positioning leg 11 is positioned and fixed. The installation is simpler and more convenient, and the attenuator can be disassembled to change the type of the attenuator for detecting the energy of the optical signal.

[0019] Although the embodiments of the utility model have been shown and described, it should be emphasized that the above description is only an introduction and description of the use of the embodiments of the utility model, and does not limit the utility model in any form. For those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the utility model, and the scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. An attenuator clamping fixture, comprising a support frame (1), characterized in that: A light source incident hole (2) is provided in the middle of the support frame (1), and threaded rods (5) and sliding rods (6) are provided on both sides of the light source incident hole (2), respectively. The top ends of the threaded rods (5) and the sliding rods (6) are fixedly connected to the support frame (1), and mounting frames (3) are provided at the lower ends of the threaded rods (5) and the sliding rods (6). The upper ends of both sides of the mounting frame (3) are fixedly connected to mounting ring frames (7), and the middle of the threaded rods (5) is threadedly connected to a driving ring (8), and a plurality of handles are fixedly connected to the side wall of the driving ring (8), and a clamping support plate (4) is provided in the middle of the mounting frame (3), and the clamping support plate (4) can be connected to the attenuator by buckles or bolts. Positioning legs (11) are provided at the lower ends of both sides of the clamping support plate (4), and two guide blocks (9) are provided in the middle of the mounting frame (3). The inner walls of both sides of the mounting frame (3) are provided with fixing grooves (10), and the inner walls of the fixing grooves (10) are fixedly connected to positioning plates (13).

2. The attenuator clamping fixture according to claim 1, characterized in that: The upper end of the mounting ring frame (7) is a ring-shaped structure. The mounting ring frame (7) on the left side is sleeved with the threaded rod (5), and the mounting ring frame (7) on the right side is slidably connected with the sliding rod (6).

3. The attenuator clamping fixture according to claim 1, characterized in that: An internal thread is provided on the inner wall of the driving ring (8), the driving ring (8) and the threaded rod (5) are threadedly connected, and the mounting ring frame (7) on the left side is rotatably connected to the side end of the driving ring (8).

4. The attenuator clamping fixture according to claim 1, characterized in that: The fixing groove (10) is arranged at an angle, the upper end of the guide block (9) is arranged at an angle, and the fixing groove (10) and the upper end of the guide block (9) are smoothly connected.

5. The attenuator clamping fixture according to claim 1, characterized in that: A positioning groove (12) is provided at the side end of the positioning leg (11), and the positioning leg (11) and the clamping bracket are connected via a spring shaft.

6. The attenuator clamping fixture according to claim 1, characterized in that: The positioning piece (13) is an arc-shaped structure, and the positioning piece (13) is an elastic iron piece.

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