Optical fiber fixing clamp
By designing optical fiber fixing fixtures, and using support frames and limit blocks to achieve vertical fixation of optical fibers, the problem of structural collapse in fiber port 3D printing is solved, and the stability and efficiency of printing are improved.
Patent Information
- Application Number
- CN202422414924.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-09-30
AI Technical Summary
During the 3D printing process of optical fiber ports, tiny structures are prone to expose space under the printing structure, resulting in collapse and increasing the difficulty of printing.
Design an optical fiber fixing fixture, including a support frame, limit block and fixing components, and realize vertical fixation of the optical fiber through limit grooves and clamping blocks, so that the optical fiber port faces the laser beam, and the tiny structures start printing from the optical fiber port to avoid printing structural faults.
It effectively prevents the collapse of tiny structures in the initial stage, reduces the difficulty of 3D printing, and helps the camera focus on the optical fiber port, improving the stability and efficiency of printing.
Smart Images
Figure CN223115844U_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of optical fiber fixation, and particularly relates to an optical fiber fixation fixture. Background Art
[0002] In the field of optoelectronic testing, in order to obtain the true performance indicators of chips, it is necessary to test each chip individually after sorting, and such testing efficiency is not high, often resulting in a situation of supply falling short of demand. Conducting true structure testing of chips at the wafer level (i.e., directly testing the chips on the wafer) can reduce the process of sorting individual chips, thereby improving the testing efficiency of chips.
[0003] Affected by the width of the wafer scribing groove, ordinary optical fibers cannot reduce the light loss to an acceptable range, resulting in very large losses when using ordinary optical fibers for testing. Therefore, a light-concentrating micro-structure needs to be 3D printed at the port of the optical fiber. As Figure 1 shown, a common processing method is to horizontally place the optical fiber a1 on the optical fiber carrier a3. Figure 1 The arrow direction in is the direction of the laser beam. The light-emitting end face of the optical fiber is parallel to the laser beam, and 3D printing is carried out layer by layer from the bottom up. Eventually, the above-mentioned micro-structure a2 is printed. However, this micro-structure a2 is often an irregular shape, and the place where printing starts may not be in contact with the optical fiber carrier a3. Then there is no support point under the printed structure, and it is easy to have a situation where the bottom of the printed structure is empty. Therefore, the empty structure at the beginning of printing is prone to collapse. Summary of the Invention
[0004] The present application provides an optical fiber fixation fixture for fixing an optical fiber, which can solve the technical problem that the 3D printing at the port of the optical fiber is prone to having an empty space under the printed structure.
[0005] In a first aspect, an embodiment of the present application provides an optical fiber fixation fixture, including:
[0006] A support frame, which is a rectangular frame with one end open and is installed at the stage of a 3D printing device at the bottom;
[0007] A limiting block, the two ends of which are installed on a set of opposite sides of the support frame (1). A groove is provided at the top of the limiting block, and a limiting groove for accommodating the optical fiber is penetratedly opened at the bottom wall of the groove. The top end of the limiting groove faces the laser beam of the 3D printing device;
[0008] A fixing component, including two clamping blocks arranged in the groove. The two clamping blocks are respectively located on both sides of the limiting groove, and each has a half groove on the opposite surface. After the two half grooves are buckled, an optical fiber positioning groove located on the same straight line as the limiting groove is formed. The fixing component further includes an adjusting member installed on the side of the groove for adjusting the movement of the clamping block.
[0009] In this embodiment, the optical fiber is vertically fixed through the optical fiber positioning grooves of the two clamping blocks. The microstructures are directly printed starting from the port of the optical fiber, avoiding the occurrence of printed structure faults, preventing the collapse of the microstructures at the initial stage of printing, and reducing the printing difficulty. In addition, with the optical fiber port facing upwards, it is more conducive to the camera focusing on the optical fiber port during 3D printing.
[0010] Combined with the first aspect, in an embodiment, the limiting block is of a T-shaped structure. The two ends of its transverse structure are installed on the support frame through mounting parts, and the groove is arranged at the top of the transverse structure;
[0011] The longitudinal structure of the T-shaped structure faces the opening of the support frame. The top surface of the longitudinal structure is lower than the top surface of the transverse structure, and an optical fiber receiving groove perpendicular to and in the same plane as the limiting groove is provided on the top surface of the longitudinal structure.
[0012] In this embodiment, the limiting block is set as a T-shaped structure. The transverse structure vertically fixes the optical fiber, and the longitudinal structure bears the pigtail to realize the fixation of the whole optical fiber.
[0013] Combined with the first aspect, in an embodiment, the optical fiber fixing fixture further includes an angle adjusting rod. One end of the angle adjusting rod is fixed to the support frame, and the other end is installed on the longitudinal structure through an adjusting component. When the adjusting component is adjusted, the longitudinal structure approaches or moves away from the angle adjusting rod.
[0014] In this embodiment, through the adjusting component, the rotation adjustment of the whole limiting block in the support frame can be realized, and further the adjustment of the optical fiber port in the y-axis direction can be realized.
[0015] Combined with the first aspect, in an embodiment, the mounting part is a screw. Ring-shaped parts are provided at both ends of the limiting block, and the screw penetrates into the ring-shaped parts from the outer wall of the groove.
[0016] In this embodiment, after the angle of the limiting block is adjusted, it can be fixed through the ring-shaped parts and the screws, avoiding position deviation during the 3D printing process.
[0017] Combined with the first aspect, in an embodiment, the adjusting component includes an adjusting bolt passing through the longitudinal structure and the angle adjusting rod, and its end is fixed through an adjusting nut. A balance spring is sleeved on the adjusting bolt, and both ends of the balance spring respectively abut against the longitudinal structure and the angle adjusting rod.
[0018] In this embodiment, through the setting of the adjusting component, the angle adjustment of the limiting block can be realized only by screwing the adjusting bolt, which is more simple and convenient. Compared with separately adjusting the mounting parts at both ends, it avoids the occurrence of unbalanced adjustment, and the overall adjustment is more accurate.
[0019] In combination with the first aspect, in one embodiment, a pressing block for fixing the optical fiber is installed on the top surface of the longitudinal structure of the T-shaped structure. A sponge is installed on the surface of the pressing block facing the optical fiber. The pressing block is adjustably installed on the longitudinal structure through a bolt with a locking spring.
[0020] In this embodiment, the pigtail of the optical fiber is fixed by the pressing block, so that the optical fiber can maintain a more stable state during the 3D printing process. A sponge is installed on the pressing block to avoid damaging the optical fiber.
[0021] In combination with the first aspect, in one embodiment, two relatively arranged L-shaped ribs extend upward from the top surface of the limiting block, and the groove is formed between the two ribs;
[0022] The fixing component further includes a fixing block for fixing the clamping block in the groove. The fixing block and the rib enclose a groove that is closed on all sides; the end of the clamping block abuts against the fixing block.
[0023] In this embodiment, the fixing block and the rib enclose a groove that is closed on all sides, ensuring that the position of the clamping block will not move back and forth, achieving better fixation.
[0024] In combination with the first aspect, in one embodiment, the fixing component further includes a spacer located outside the two clamping blocks. The sides of the clamping block and the spacer that are in contact with each other are inclined planes and are in mutual fit. An adjusting member for adjusting its movement is provided on the outside of the spacer.
[0025] In this embodiment, the sides of the clamping block and the spacer that are in contact with each other are inclined planes, which can make the spacer and the clamping block maintain a more stable state in the groove. By adjusting the adjusting member, the movement of the spacer and the clamping block can be realized, and the movement of the optical fiber on the x-axis can be realized.
[0026] In combination with the first aspect, in one embodiment, the fixing block is divided into two first fixing blocks and one second fixing block. The two first fixing blocks are arranged relatively, and the butt joint end face is arranged in front of the limiting groove. The end faces of the two first fixing blocks facing away from each other have steps and are respectively clamped to the short sides of the L-shaped ribs; the second fixing block is arranged on the opposite side of the first fixing block.
[0027] In this embodiment, the end faces of the two first fixing blocks facing away from each other have steps and are respectively clamped to the short sides of the L-shaped ribs. Through the clamping fit, it is prevented that the fixing block slides in the groove of the limiting block under the locked condition.
[0028] In combination with the first aspect, in one embodiment, a notch is provided on each of the sides of the two clamping blocks in contact with each other, and a separating spring for separating the two clamping blocks is installed in the notch.
[0029] In this embodiment, the elastic separation of the two clamping blocks 31 can be realized through the separation spring, avoiding scratching the optical fiber or the tiny structures that have been printed.
[0030] The beneficial effects brought by the technical solution provided in the embodiment of the present application include:
[0031] By installing a limiting block in the support frame, a limiting groove for accommodating the optical fiber is provided on the bottom wall of the groove of the limiting block, and the top end of the limiting groove faces the laser beam of the 3D printing device. The optical fiber can be set vertically upward, and the vertical fixation of the optical fiber is realized through the optical fiber positioning grooves of the two clamping blocks, so that the port of the optical fiber is directly opposite to the laser beam, and the tiny structure is directly printed from the port of the optical fiber, avoiding the situation of printing structure faults during 3D printing, preventing the tiny structure from collapsing in the initial stage of printing, and reducing the printing difficulty; in addition, with the optical fiber port facing upward, it is more conducive to the camera to focus on the optical fiber port during 3D printing. Description of the Drawings
[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for description in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0033] Figure 1 It is a schematic structural diagram of the optical fiber placement in the background technology;
[0034] Figure 2 It is a schematic structural diagram of the optical fiber placement in the present application;
[0035] Figure 3 It is a schematic structural diagram of the optical fiber fixing fixture in the embodiment of the present application;
[0036] Figure 4 It is a schematic structural diagram of the cooperation between the limiting block and the fixing component in the embodiment of the present application;
[0037] Figure 5 It is a schematic structural diagram of the limiting block in the embodiment of the present application;
[0038] Figure 6 It is a schematic structural diagram of the clamping block in the embodiment of the present application.
[0039] In the figure:
[0040] a1, optical fiber; a2, tiny structure; a3, optical fiber carrier sheet;
[0041] 1, support frame; 11, step;
[0042] 2. Limit block; 21. Groove; 22. Limit groove; 23. Optical fiber receiving groove; 24. Mounting member; 25. Ring; 26. Rib; 27. Pressing block; 28. Sponge; 29. Locking spring;
[0043] 3. Fixing assembly; 31. Clamping block; 32. Fixing block; 321. First fixing block; 322. Second fixing block; 33. Spacer block; 34. Adjusting member; 35. Mounting hole; 36. Half groove;
[0044] 4. Angle adjusting rod; 41. Adjusting bolt; 42. Adjusting nut; 43. Balancing spring. Detailed implementation manners
[0045] In order to enable those skilled in the art to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.
[0046] The embodiment of this application provides an optical fiber fixing fixture, as Figure 2 shown. The arrow direction is the laser beam direction. The optical fiber fixing fixture can vertically fix the optical fiber a1 so that the port of the optical fiber a1 faces the laser beam directly. The micro-structure a2 is directly printed starting from the port of the optical fiber a1, avoiding the situation of printing structure faults during the 3D printing process, preventing the micro-structure a2 from collapsing in the initial stage of printing, and reducing the printing difficulty.
[0047] As Figure 3 and Figure 4 shown, it is a schematic structural diagram of the optical fiber fixing fixture in the embodiment of this application. The optical fiber fixing fixture includes a support frame 1, a limit block 2 and a fixing assembly 3.
[0048] The support frame 1 is a rectangular frame with one end open, and can also be a U-shaped structure. For better description, the open direction of the support frame 1 is regarded as the front. The bottom of the support frame 1 is installed on the stage of the 3D printing device. Further, the bottom of the support frame 1 has a step 11, whose size matches that of the stage. The setting of the step 11 can limit the movement of the support frame 1 and make it better fixed on the stage.
[0049] Both ends of the limit block 2 are installed on a pair of opposite sides (i.e., the two side edges) of the support frame 1. A groove 21 is provided at the top of the limit block 2. A limit groove 22 for accommodating the optical fiber is opened on the bottom wall of the groove 21, and 22 penetrates the bottom wall of the groove 21. The top end of the limit groove 22 faces the laser beam of the 3D printing device. The limit groove 22 can be a V-shaped groove or a semi-circular groove.
[0050] The fixing component 3 includes two clamping blocks 31 arranged in the groove 21. The two clamping blocks 31 are respectively located on both sides of the limiting groove 22, and each of the opposite surfaces of the two clamping blocks 31 is provided with a half groove 36. After the two half grooves 36 are buckled, an optical fiber positioning groove is formed. The optical fiber positioning groove and the limiting groove 22 are located on the same straight line. In addition, the fixing component 3 further includes an adjusting member 34 installed on the side of the groove 21 and used to adjust the movement of the two clamping blocks 31. Preferably, the half groove 36 can be a V-shaped groove.
[0051] By installing the limiting block 2 in the support frame 1, the limiting groove 22 for accommodating the optical fiber is opened on the bottom wall of the groove 21 of the limiting block 2. Combining the two clamping blocks 31, the optical fiber can be fixed vertically upward in the optical fiber positioning groove, making the port of the optical fiber face the laser beam directly, avoiding the situation of printing structure faults during 3D printing and reducing the printing difficulty.
[0052] Further, in an embodiment, as Figure 1 and Figure 5 shown, the above-mentioned limiting block 2 is of a T-shaped structure, including a transverse structure facing both sides of the support frame 1 and a longitudinal structure facing the opening of the support frame 1. Both ends of the transverse structure are installed on the support frame 1 through mounting members, and the groove 21 is arranged at the top of the transverse structure. The top surface of the longitudinal structure is lower than the top surface of the transverse structure. The limiting groove 22 penetrates the top surface and the bottom surface of the transverse structure (i.e., penetrates the bottom wall of the groove 21). The top surface of the longitudinal structure is provided with an optical fiber accommodating groove 23 perpendicular to the limiting groove 22, and the optical fiber accommodating groove 23 and the limiting groove 22 are located in the same plane.
[0053] In this embodiment, the mounting member 24 is a screw. The two ends of the limiting block 2 are provided with rings 25. The screw penetrates into the ring 25 from the outer wall of the groove 21, thereby suspending the installation of the limiting block 2 in the support frame 1. Before the screw is tightened, the angle of the limiting block 2 can also be adjusted.
[0054] Further, in an embodiment, the optical fiber fixing fixture further includes an angle adjusting rod 4. One end of it is fixed to a side of the support frame 1. One end of the angle adjusting rod 4 is installed on the longitudinal structure through an adjusting component. When the adjusting component is adjusted, the longitudinal structure approaches or moves away from the angle adjusting rod 4. In this embodiment, the adjusting component includes an adjusting bolt 41 passing through the longitudinal structure and the angle adjusting rod. The end of the adjusting bolt 41 is fixed by an adjusting nut 42. The adjusting bolt 41 is sleeved with a balance spring 43. Both ends of the balance spring 43 respectively abut against the longitudinal structure and the angle adjusting rod. In this embodiment, by rotating the adjusting nut 42, the longitudinal structure can drive the transverse structure, so that the limiting block 2 rotates around the mounting members at both ends as the axis, realizing the adjustment in the y-axis direction of the end face of the clamped optical fiber.
[0055] Further, in one embodiment, a pressing block 27 for fixing the optical fiber is installed on the top surface of the longitudinal structure of the T-shaped structure. The pressing block 27 is located at the top of the optical fiber receiving groove 23, and a sponge 28 is installed on the surface facing the optical fiber. The pressing block 27 is adjustably installed on the longitudinal structure through a bolt with a locking spring 29. Specifically, the locking spring 29 is sleeved on the bolt, one end abuts against the bolt head of the bolt, and the other end abuts against the bottom surface of the longitudinal structure. The other end of the bolt passes through the top surface of the longitudinal structure, and the pressing block 27 is installed at the end of the bolt. Through the bolt and the locking spring 29, the force of the pressing block 27 on the optical fiber can be adjusted.
[0056] It can be understood that in other embodiments, the limiting block 2 can also be a structure of other shapes, as long as it can be rotated and fixed at a certain angle within the support frame 1.
[0057] Further, in one embodiment, two relatively arranged L-shaped ribs 26 extend upward from the top surface of the limiting block 2, and a groove 21 is formed between the two ribs 26. The L-shaped ribs 26 and the groove 21 are located in the transverse structure. The fixing assembly 3 further includes a fixing block 32 that fixes the clamping block 31 in the groove 21. The fixing block 32 and the rib 26 enclose the groove 21 that is closed all around. The end of the clamping block 31 abuts against the fixing block 32.
[0058] Preferably, the fixing block 32 is divided into two first fixing blocks 321 and one second fixing block 322. The second fixing block 322 is arranged on the opposite side of the first fixing block 321. The two first fixing blocks 321 are arranged relatively, and the docking end faces are arranged in front of the limiting groove 22. The opposite end faces of the two first fixing blocks 321 have steps, which are respectively clamped on the short sides of the L-shaped ribs 26 to prevent the fixing block 32 from sliding in the locked state.
[0059] In addition, a notch is provided on the side of the support frame 1 corresponding to the second fixing block 322, which is convenient for installing or removing the clamping block 31, the second fixing block 322, etc. through the notch. The installation is convenient and can also avoid damaging the tiny structure of the optical fiber after 3D printing.
[0060] Further, a protrusion is provided forward in the middle of the second fixing block 322, protrusions are provided inward at the opposite ends of the two first fixing blocks 321, and notches are provided at the ends of the two clamping blocks 31 corresponding to the protrusions, so as to prevent excessive displacement of each clamping block 31 and avoid breaking the clamped optical fiber.
[0061] Preferably, the fixing assembly further includes a spacer 33 located outside the two clamping blocks 31. The side surfaces of the clamping block 31 and the spacer 33 in contact with each other are inclined surfaces and are mutually attached. In this embodiment, the inclination angle of the inclined surface is 8°, so that the spacer 33 and the clamping block 31 will maintain a stable state in the groove 21.
[0062] An adjusting member 34 for adjusting its movement is provided on the outer side of the spacer block 33. In this embodiment, the adjusting member 34 is a screw. A threaded hole is provided on the outer side wall of the spacer block 33, and the screw passes through the rib 26 and is screwed into the threaded hole of the spacer block 33. By adjusting the feed amounts of the two adjusting members 34, the movement of the spacer block 33 and the clamping block 31 can be adjusted. While clamping the optical fiber between the two clamping blocks 31, the position of the end face of the optical fiber in the x-axis direction can be corrected.
[0063] Further, in one embodiment, as Figure 1 and Figure 6 shown, a notch is provided on the side surface where the two clamping blocks 31 are in contact. Mounting holes 35 are provided on the side wall of the notch. The mounting holes 35 of the two clamping blocks 31 are arranged oppositely. A separating spring (not shown in the figure) for separating the two clamping blocks is installed in the mounting holes 35. When the spacer block 33 is separated, the two clamping blocks 31 can be separated from each other under the elastic force of the separating spring, so as to avoid scratching the optical fiber or the microstructures that have been printed.
[0064] As Figures 3 to 5 shown, an embodiment of the usage method of an optical fiber fixing fixture is provided to detail the usage process of the optical fiber fixing fixture.
[0065] First, install the fixing assembly 3 in the limiting block 2. Unscrew the two adjusting members 34 to both sides respectively. Under the action of the separating spring, the two clamping blocks 31 are separated outward, and there is enough gap in the middle. Place the optical fiber into the limiting groove 22 therein. Gently pull the optical fiber to make the end face of the optical fiber a little higher than the top surface of the clamping block 31. Screw the two adjusting members 34 towards the middle respectively, move the two spacer blocks 33 towards the middle, and then move the two clamping blocks 31, so that the optical fiber is located in the optical fiber positioning groove formed after the two clamping blocks 31 are buckled. Specifically, one adjusting member 34 can be adjusted to move towards the middle first to install the optical fiber into one half groove 36 of the corresponding clamping block, and then the other adjusting member 34 is adjusted until the two half grooves 36 are buckled and accommodate the optical fiber.
[0066] Then, place the tail fiber of the optical fiber in the optical fiber accommodating groove 23 of the longitudinal structure of the limiting block, and adjust the pressing block 27 so that the sponge 28 presses on the optical fiber in the optical fiber accommodating groove 23.
[0067] Then place the whole device on the carrier table of the 3D printing device and lock it by the step 11 to ensure that the optical fiber fixing fixture does not shift.
[0068] Finally, the camera of the 3D printing device finds the optical fiber, and judges the angle of the end face by observing the shape and brightness distribution of the end face of the optical fiber. Adjust the angle of the x-axis through the two adjusting members 34, and adjust the angle of the y-axis by adjusting the tightness of the adjusting bolt 41 and the adjusting nut 42. After the angle of the end face is adjusted, print according to the 3D printing process.
[0069] After 3D printing is completed, unscrew the two adjusting parts 34 to both sides respectively, take the second fixing block 322 out of the slot of the support frame 1, and at the same time take out the clamping block 31 to prevent damage to the printed structure. Press the pigtail with your hand, compress the locking spring 29, rotate the pressing block 27 so that it moves outside the optical fiber, and then use tweezers to cooperate to take out the optical fiber.
[0070] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. Unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.
[0071] It should be noted that in the present application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.
[0072] The above are only specific embodiments of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features claimed herein.
Claims
1. An optical fiber fixing fixture, characterized in that, Comprising: A support frame (1), which is a rectangular frame with one end open, and the bottom is installed on the stage of the 3D printing device; A limit block (2), the two ends of which are installed on a pair of opposite sides of the support frame (1). A groove (21) is provided at the top of the limit block (2), and a limit groove (22) for accommodating the optical fiber is penetrated through the bottom wall of the groove (21). The top end of the limit groove (22) faces the laser beam of the 3D printing device; A fixing assembly (3), including two clamping blocks (31) arranged in the groove (21). The two clamping blocks (31) are respectively located on both sides of the limit groove (22), and a half groove (36) is provided on each of the opposite surfaces. After the two half grooves (36) are buckled, an optical fiber positioning groove in the same straight line as the limit groove (22) is formed. The fixing assembly (3) further includes an adjusting member (34) installed on the side of the groove (21) for adjusting the movement of the clamping block.
2. The optical fiber fixing fixture according to claim 1, wherein: The limit block (2) is of a T-shaped structure, and the two ends of its transverse structure are installed on the support frame (1) through mounting members, and the groove (21) is arranged at the top of the transverse structure; The longitudinal structure of the T-shaped structure faces the opening of the support frame (1). The top surface of the longitudinal structure is lower than the top surface of the transverse structure, and an optical fiber accommodating groove (23) perpendicular to and in the same plane as the limit groove (22) is provided on the top surface of the longitudinal structure.
3. The optical fiber fixing fixture according to claim 2, wherein: The optical fiber fixing fixture further includes an angle adjusting rod (4). One end of the angle adjusting rod (4) is fixed to the support frame (1), and the other end is installed on the longitudinal structure through an adjusting assembly. When the adjusting assembly is adjusted, the longitudinal structure approaches or moves away from the angle adjusting rod (4).
4. The optical fiber fixing fixture according to claim 3, wherein: The mounting member (24) is a screw. Rings (25) are provided at both ends of the limit block (2), and the screw penetrates into the ring (25) from the outer wall of the groove (21).
5. The optical fiber fixing fixture according to claim 3, wherein: The adjusting assembly includes an adjusting bolt (41) passing through the longitudinal structure and the angle adjusting rod (4), and its end is fixed by an adjusting nut (42). A balance spring (43) is sleeved on the adjusting bolt (41), and both ends of the balance spring (43) respectively abut against the longitudinal structure and the angle adjusting rod (4).
6. The optical fiber fixing fixture according to claim 2, wherein: A pressing block (27) for fixing the optical fiber is installed on the top surface of the longitudinal structure of the T-shaped structure. A sponge (28) is installed on the surface of the pressing block (27) facing the optical fiber, and the pressing block (27) is adjustably installed on the longitudinal structure through a bolt with a locking spring (29).
7. The optical fiber fixing fixture according to claim 1 or 2, wherein: Two relatively arranged L-shaped ribs (26) extend upward from the top surface of the limit block (2), and the groove (21) is formed between the two ribs (26); The fixing component (3) further includes a fixing block (32) that fixes the clamping block (31) in the groove (21). The fixing block (32) and the rib (26) enclose a groove (21) that is closed on all sides; the end of the clamping block (31) abuts against the fixing block (32).
8. The optical fiber fixing fixture according to claim 7, wherein: The fixing component (3) further includes a spacer block (33) located outside the two clamping blocks (31). The sides of the clamping block (31) and the spacer block (33) that are in contact are both inclined planes and are in mutual fit. An adjusting member (34) for adjusting its movement is provided on the outside of the spacer block (33).
9. The optical fiber fixing fixture according to claim 7, wherein: The fixing block (32) is divided into two first fixing blocks (321) and one second fixing block (322). The two first fixing blocks (321) are arranged oppositely, and the butt joint end face is arranged in front of the limiting groove (22). The end faces of the two first fixing blocks (321) facing away from each other have steps and are respectively clamped to the short sides of the L-shaped rib (26); the second fixing block (322) is arranged on the opposite side of the first fixing block (321).
10. The optical fiber fixing fixture according to claim 7, wherein: A notch is provided on each of the sides of the two clamping blocks (31) that are in contact. An installation hole (35) is provided on the side wall of the notch, and a separating spring for separating the two clamping blocks (31) is installed in the installation hole (35).