Secondary floating optical fiber test probe

Abstract

The utility model discloses a secondary floating optical fiber test probe which comprises a contact, a first positioning block, a first floating spring, an optical fiber body, a second positioning block, a second floating spring, a connecting assembly, a fixing block and an optical fiber protective sleeve, the contact is arranged in the first positioning block in a penetrating mode, and the optical fiber protective sleeve is installed on the first positioning block. The optical fiber body penetrates through the optical fiber protection sleeve and is connected with the contact, and the first floating spring sleeves the optical fiber body and abuts against one side of the contact; the second positioning block is installed on the first positioning block, the fixing block is connected with the second positioning block through the connecting assembly, and the second floating spring is clamped between the fixing block and the second positioning block. According to the utility model, under the driving of the first positioning block, the first floating spring is compressed, and the contact positioning hole is of a circular truncated cone structure, so that the contact can have a floating amount of + / -15 degrees, thereby ensuring that an optical fiber connector is not damaged in a test process.

Description

Technical Field

[0001] The utility model belongs to the technical field of optical testing, and in particular relates to a secondary floating optical fiber testing probe. Background Art

[0002] In the field of optical communication design and manufacturing, for devices with optical fibers, it is usually necessary to conduct factory tests on the coupling status between these components and the optical fibers before leaving the factory to ensure that the optical transmission function in the optical module is normal.

[0003] Since the centering accuracy of optical fiber testing is ±0.01mm, and the machining accuracy deviation of the tested parts is relatively large, generally around 0.2mm, this makes the detection more difficult. Therefore, a secondary floating optical fiber test probe is urgently needed. Utility Model Content

[0004] In order to solve the defects in the prior art, the utility model provides a two-stage floating optical fiber test probe.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] The utility model provides a two-stage floating optical fiber test probe, comprising a contact, a first positioning block, a first floating spring, an optical fiber body, a second positioning block, a second floating spring, a connecting assembly, a fixed block and an optical fiber protective cover, wherein the contact is inserted into the first positioning block, the optical fiber protective cover is installed on the first positioning block, the optical fiber body is inserted into the optical fiber protective cover and is connected to the contact, the first floating spring is sleeved on the optical fiber body and abuts against one side of the contact; the second positioning block is installed on the first positioning block, the fixed block is connected to the second positioning block through a connecting assembly, and the second floating spring is clamped between the fixed block and the second positioning block.

[0007] Preferably, the contact is a glass fiber contact, a truncated cone protrusion is provided at the front end of the contact, a contact step end surface is provided at the rear end of the contact, and the first floating spring abuts against the contact step end surface.

[0008] Preferably, the first positioning block includes a first positioning portion and a first connecting portion, the first connecting portion is arranged on the upper surface of the first positioning portion, and the first positioning portion is provided with a contact mounting hole, a contact positioning hole and an optical fiber protective cover mounting hole which are connected in sequence from front to back, the contact mounting hole is a hollow cylindrical structure, the contact positioning hole is a truncated cone structure matching the truncated cone protrusion, and the diameter size of the contact positioning hole is gradually increased from front to back, and the optical fiber protective cover mounting hole is a hollow rectangular structure; the first connecting portion is provided with a first mounting through hole for connecting the second positioning block.

[0009] Preferably, a first positioning inclined surface is provided on the front end surface of the first positioning portion, and a second positioning inclined surface is provided on the front end surface of the first connecting portion.

[0010] Preferably, a rectangular mounting portion and a rectangular limiting protrusion are provided on the front end outer surface of the optical fiber protective cover in sequence from front to rear, the rectangular mounting portion matches the optical fiber protective cover mounting hole and is arranged in the optical fiber protective cover mounting hole, and vertical guide grooves of the protective cover are relatively provided on the two side edges of the rectangular limiting protrusion; a spring limiting hole and an optical fiber guide hole that are connected to each other are opened in sequence on the front end face of the optical fiber protective cover backward, the first floating spring is arranged in the spring limiting hole, and the optical fiber body is connected to the contact after passing through the optical fiber guide hole.

[0011] Preferably, a lower mounting groove and an upper mounting groove which are connected to each other are formed in sequence on the bottom end surface of the second positioning block, and positioning ridges which match the vertical guide grooves of the protective cover are formed on two opposite sides of the lower mounting groove, and a second mounting through hole which is connected to the upper mounting groove is formed on the top end surface of the second positioning block downward; a second positioning block connecting hole for installing a connecting component is formed on the second positioning block and above the upper mounting groove, and a second positioning block blind hole for clamping a second floating spring is formed on the rear end surface of the second positioning block.

[0012] Preferably, a fixing block connecting hole for installing a connecting component is opened rearwardly on the front end face of the fixing block, and a fixing block blind hole for clamping a second floating spring is opened on the front end face of the fixing block. The fixing block connecting hole and the second positioning block connecting hole, the fixing block blind hole and the second positioning block blind hole are respectively arranged opposite to each other, one end of the connecting component in the length direction is threadedly connected to the second positioning block connecting hole, and the other end of the connecting component in the length direction is movably inserted into the fixing block connecting hole and movably connected to the fixing block, and the two ends of the second floating spring in the length direction respectively abut against the fixing block blind hole and the second positioning block blind hole.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] (1) In the utility model, the first floating spring is compressed under the drive of the first positioning block. Since the contact positioning hole is a truncated cone structure, the contact can have a floating amount of ±15°, thereby ensuring that the optical fiber connector is not damaged during the test process.

[0015] (2) The parts of the utility model are made of high-strength metal materials, which increases durability and can withstand physical plug-in and pull-out tests up to 100,000 times.

[0016] (3) When the fixed block of the utility model contacts the object to be tested with the entire probe assembly, the second floating spring works to maintain a floating amount of 1 mm in the test direction and a floating amount of 0.2 mm in other directions, thereby avoiding damage caused by physical overload of the test workpiece, thereby realizing a fully automatic plug-in and unplug process of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the explosion structure of a two-stage floating optical fiber test probe of the utility model;

[0018] Figure 2 It is a schematic top view of the overall structure of a two-stage floating optical fiber test probe of the utility model;

[0019] Figure 3 This is a bottom-up schematic diagram of the overall structure of a two-stage floating optical fiber test probe of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of a contact in a two-stage floating optical fiber test probe of the utility model;

[0021] Figure 5 This is a structural cross-sectional view of an optical fiber protective sleeve in a secondary floating optical fiber test probe of the utility model;

[0022] Figure 6 It is a front view schematic diagram of the structure of the first positioning block in a two-stage floating optical fiber test probe of the utility model;

[0023] Figure 7 It is a rear view schematic diagram of the structure of the first positioning block in a two-stage floating optical fiber test probe of the utility model;

[0024] Figure 8 The utility model is a structural schematic diagram of a second positioning block in a two-stage floating optical fiber test probe. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0026] In the description of the present invention, it should be understood that the terms "left" and "right" indicate directions or positional relationships based on the drawings in the specification. Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] 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.

[0028] like Figure 1-Figure 8 As shown, this embodiment provides a secondary floating optical fiber test probe, including 2 contacts 1, a first positioning block 2, 2 first floating springs 3, 2 optical fiber bodies 4, a second positioning block 5, 2 second floating springs 6, 2 connecting components 7, a fixing block 8 and an optical fiber protective cover 9.

[0029] like Figure 4 As shown, the contact 1 is a glass fiber contact, a truncated cone protrusion 11 is provided at the front end of the contact 1, and a contact step end surface 12 is provided at the rear end of the contact 1.

[0030] like Figure 5 As shown, the contact 1 is inserted into the first positioning block 2, the optical fiber body 4 is inserted into the optical fiber protective cover 9 and connected to the contact 1, and the first floating spring 3 is sleeved on the optical fiber body 4 and abuts against the contact step end face 12 of the contact 1.

[0031] like Figure 1 , Figure 5 As shown, a rectangular mounting portion 91 and a rectangular limiting protrusion 92 are sequentially provided on the front end outer surface of the optical fiber protective cover 9 from front to back. The rectangular mounting portion 92 matches the optical fiber protective cover mounting hole and is arranged in the optical fiber protective cover mounting hole 213, so as to realize the installation of the optical fiber protective cover and the first positioning block. Vertical guide grooves 93 for the protective cover are arranged on the two side edges of the rectangular limiting protrusion 92, so as to realize the installation of the optical fiber protective cover and the second positioning block. A spring limiting hole 94 and an optical fiber guide hole 95 are sequentially opened on the front end face of the optical fiber protective cover 9, which are connected to each other. The first floating spring 3 is arranged in the spring limiting hole 94, so as to realize the limiting of the first floating spring. The optical fiber body 4 is connected to the contact 1 after passing through the optical fiber guide hole 95.

[0032] like Figure 6 , Figure 7As shown, the first positioning block 2 includes a first positioning portion 21 and a first connecting portion 22, the first connecting portion 22 is arranged on the upper surface of the first positioning portion 21, and the first positioning portion 21 is provided with a contact mounting hole 211, a contact positioning hole 212 and an optical fiber protective sleeve mounting hole 213 which are connected from front to back in sequence, the contact mounting hole 211 is a hollow cylindrical structure, the contact positioning hole 212 is a truncated cone structure matching the truncated cone protrusion 11, and the diameter size of the contact positioning hole 213 is gradually increased from front to back, and the optical fiber protective sleeve mounting hole 213 is a hollow rectangular structure; the first connecting portion 22 is provided with a first mounting through hole 221 for connecting the second positioning block.

[0033] Specifically, the front end surface of the first positioning portion 21 is provided with a first positioning inclined surface 214, and the front end surface of the first connecting portion 22 is provided with a second positioning inclined surface 222. The inclinations of the first positioning inclined surface 214 and the second positioning inclined surface 222 can be selected according to actual conditions to achieve the positioning function.

[0034] like Figure 8 As shown, the bottom end surface of the second positioning block 5 is upwardly provided with a lower mounting groove 51 for installing the optical fiber protective cover and an upper mounting groove 52 for installing the first positioning block, and the two opposite side surfaces of the lower mounting groove 51 are provided with positioning ridges 53 matching the vertical guide groove of the protective cover, and the top end surface of the second positioning block 5 is downwardly provided with a second mounting through hole 54 connected with the upper mounting groove; two second positioning block connecting holes 55 for installing the connecting assembly are provided on the second positioning block 5 and above the upper mounting groove 52, and two second positioning block blind holes 56 for clamping the second floating spring 6 are provided on the rear end surface of the second positioning block 5.

[0035] In this embodiment, the front end face of the fixing block 8 is provided with two fixing block connection holes 81 for installing the connection assembly 7, and the front end face of the fixing block 8 is provided with two fixing block blind holes 82 for clamping the second floating spring 6. The fixing block connection hole 81 and the second positioning block connection hole 55, the fixing block blind hole 82 and the second positioning block blind hole 56 are arranged one by one, respectively. One end of the connecting assembly 7 in the length direction is threadedly connected with the second positioning block connection hole 56, and the other end of the connecting assembly 7 in the length direction is movably inserted into the fixing block connection hole 81 and movably connected with the fixing block 8, and the two ends of the second floating spring 6 in the length direction are respectively against the fixing block blind hole 82 and the second positioning block blind hole 56. Among them, the connecting assembly 7 uses equal height screws to realize the installation of the fixing block and the second positioning block, one end of the equal height screw is threadedly connected with the second positioning block, and a step hole is arranged in the fixing block connection hole, so that the other end of the equal height screw is movably connected with the fixing block.

[0036] The working principle of this embodiment is further described below:

[0037] Assemble the contact, the optical fiber body and the first floating spring, and insert them together in the first positioning block. Then, assemble the optical fiber protective cover into the optical fiber protective cover mounting hole of the first positioning block and the lower mounting groove of the second positioning block. Assemble the first connecting part of the first positioning block into the upper mounting groove of the second positioning block. Screws are passed through the second mounting through hole and the first mounting through hole to assemble the second positioning block, the first positioning block and the optical fiber protective cover together. Driven by the first positioning block, the first floating spring is compressed. Since the contact positioning hole is a truncated cone structure, the contact can have a floating amount of ±15°, thereby ensuring that the optical fiber connector is not damaged during the test.

[0038] The second positioning block and the fixed block are connected by a connecting assembly, and the two ends of the second floating spring are placed between the second positioning block and the fixed block. When the fixed block brings the entire probe assembly into contact with the object to be tested, the second floating spring works to maintain a floating amount of 1mm in the test direction and 0.2mm in other directions, avoiding damage caused by physical overload of the test workpiece, thereby realizing a fully automatic plug-in and unplug process of the test.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A secondary floating optical fiber test probe, characterized in that: The optical fiber optical fiber transmission device comprises a contact (1), a first positioning block (2), a first floating spring (3), an optical fiber body (4), a second positioning block (5), a second floating spring (6), a connecting assembly (7), a fixed block (8) and an optical fiber protective sleeve (9), wherein the contact (1) is inserted into the first positioning block (2), the optical fiber protective sleeve (9) is installed on the first positioning block (2), the optical fiber body (4) is inserted into the optical fiber protective sleeve (9) and is connected to the contact (1), the first floating spring (3) is sleeved on the optical fiber body (4) and abuts against one side of the contact (1); the second positioning block (5) is installed on the first positioning block (2), the fixed block (8) is connected to the second positioning block (5) through the connecting assembly (7), and the second floating spring (6) is clamped between the fixed block (8) and the second positioning block (5).

2. The secondary floating optical fiber test probe according to claim 1, characterized in that: The contact (1) is a glass fiber contact, the front end of the contact (1) is provided with a truncated cone protrusion (11), the rear end of the contact (1) is provided with a contact step end surface (12), and the first floating spring (3) abuts against the contact step end surface (12).

3. The secondary floating optical fiber test probe according to claim 2, characterized in that: The first positioning block (2) comprises a first positioning portion (21) and a first connecting portion (22); the first connecting portion (22) is arranged on the upper surface of the first positioning portion (21); the first positioning portion (21) is provided with a contact mounting hole (211), a contact positioning hole (212) and an optical fiber protective sleeve mounting hole (213) which are connected in sequence from front to back; the contact mounting hole (211) is a hollow cylindrical structure; the contact positioning hole (212) is a truncated cone structure matching the truncated cone protrusion; the diameter of the contact positioning hole (212) is gradually increased from front to back; the optical fiber protective sleeve mounting hole (213) is a hollow rectangular structure; the first connecting portion (22) is provided with a first mounting through hole (221) for connecting to the second positioning block.

4. The secondary floating optical fiber test probe according to claim 3, characterized in that: A first positioning inclined surface (214) is provided on the front end surface of the first positioning portion (21), and a second positioning inclined surface (222) is provided on the front end surface of the first connecting portion (22).

5. The secondary floating optical fiber test probe according to any one of claims 1 to 4, characterized in that: A rectangular mounting portion (91) and a rectangular limiting protrusion (92) are sequentially provided on the front end outer surface of the optical fiber protective cover (9) from front to back, the rectangular mounting portion (91) matches the optical fiber protective cover mounting hole and is arranged in the optical fiber protective cover mounting hole (213), and protective cover vertical guide grooves (93) are relatively provided on the two side edges of the rectangular limiting protrusion (92); a spring limiting hole (94) and an optical fiber guide hole (95) which are connected to each other are sequentially opened on the front end surface of the optical fiber protective cover (9) facing backward, the first floating spring (3) is arranged in the spring limiting hole (94), and the optical fiber body (4) is connected to the contact (1) after passing through the optical fiber guide hole (95).

6. The secondary floating optical fiber test probe according to claim 5, characterized in that: The bottom end surface of the second positioning block (5) is provided with a lower mounting groove (51) for mounting the optical fiber protective cover and an upper mounting groove (52) for mounting the first positioning block, which are connected in sequence. The two opposite side surfaces of the lower mounting groove (51) are provided with positioning convex strips (53) matching the vertical guide groove of the protective cover. The top end surface of the second positioning block (5) is provided with a second mounting through hole (54) connected with the upper mounting groove downward. A second positioning block connecting hole (55) for mounting a connecting component is provided on the second positioning block (5) and above the upper mounting groove (52). A second positioning block blind hole (56) for clamping a second floating spring (6) is provided on the rear end surface of the second positioning block (5).

7. The secondary floating optical fiber test probe according to claim 6, characterized in that: A fixing block connecting hole (81) for installing the connecting component (7) is formed on the front end face of the fixing block (8) and a fixing block blind hole (82) for clamping the second floating spring (6) is formed on the front end face of the fixing block (8). The fixing block connecting hole (81) and the second positioning block connecting hole (55), and the fixing block blind hole (82) and the second positioning block blind hole (56) are respectively arranged opposite to each other. One end of the connecting component (7) in the length direction is threadedly connected to the second positioning block connecting hole (55), and the other end of the connecting component (7) in the length direction is movably inserted into the fixing block connecting hole (81) and movably connected to the fixing block (8). The two ends of the second floating spring (6) in the length direction respectively abut against the fixing block blind hole (82) and the second positioning block blind hole (56).

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