A method of using a fiber array pre-assembly tool

Abstract

The application discloses a method for using a fiber array pre-assembly tool, a first positioning block is placed on a mounting seat with a lifting pressing needle, and a side of the first positioning block abuts against a side wall of a stop table; a slide needle is slid until it abuts against the first positioning block; a first fiber array is installed in a mounting groove; a second positioning block is placed above the first positioning block; a second fiber array is installed in a buckle groove; a clamping jaw cylinder is aggregated to make two clamping blocks clamp the second positioning block; the front end faces of the coplanar first positioning block, the second positioning block, the first fiber array and the second fiber array are all arranged in the same plane; the pressing needle is fixed, and the adjusting pin is loosened; a visual detection device is finely adjusted to be the same height as the first positioning block; the visual detection device is turned on; a visual signal transmitted by the visual detection device is observed; a micrometer knob assembly is adjusted to make the first fiber array and the second fiber array reach a predetermined position.

Description

Technical Field

[0001] This invention relates to the field of high-precision double-layer VG FA production tooling and process development technology, and in particular to a method of using a fiber array pre-assembly tooling. Background Technology

[0002] Double-layer fiber arrays are widely used as a common fiber optic device. In the production process of double-layer fiber arrays, the upper fiber array and the lower fiber array need to be offset by a certain angle. Therefore, the position and width of the V-groove of the second positioning block and the first positioning block are different.

[0003] Previously, the first positioning block was first positioned with screws, and then the second positioning block was manually installed so that the front face of the second positioning block was coplanar with the front face of the first positioning block, and the left or right end face of the second positioning block was coplanar with the corresponding left or right end face of the first positioning block. This allowed the V-groove of the second positioning block to be offset from the V-groove of the first positioning block, thus causing the upper and lower fiber arrays to be offset at a certain angle. However, this assembly method required manual adjustment of the second positioning block in four directions in the horizontal plane during product assembly, which made the product difficult to produce, had low work efficiency, and made it difficult to guarantee that the product would meet the required dimensions. Summary of the Invention

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a method for using a fiber optic array pre-assembly fixture, which can quickly and accurately assemble a double-layer fiber optic array, solving the problems of difficult operation and inability to guarantee the dimensions of double-layer fiber optic arrays.

[0005] A method of using a fiber optic array pre-assembly fixture according to a first aspect of the present invention, the fiber optic array pre-assembly fixture comprising: a mounting base, a pin, a first positioning block, a second positioning block, a clamping assembly, a pressing assembly, an adjusting assembly, and a visual inspection device; the mounting base is provided with a stop platform; the pin is slidably connected to the mounting base; the first positioning block pin abuts against the left side of the first positioning block, the right side of the first positioning block abuts against the side wall of the stop platform, the upper end face of the first positioning block is provided with a plurality of mounting slots for loading a first fiber optic array; the second positioning block is disposed above the first positioning block, the lower end face of the second positioning block is provided with a plurality of snap-fit ​​slots for loading a second fiber optic array, the front end face of the second positioning block is coplanar with the front end face of the first positioning block, a support plate is disposed between the second positioning block and the first positioning block, the support plate is used to support the first fiber optic array and the second fiber optic array; the clamping assembly includes a gripper cylinder, the gripper cylinder is slidably connected to the mounting base, the gripper cylinder... The cylinder has two output ends connected to clamping blocks, which are connected by rubber rings. The clamping blocks are used to hold the second positioning block. The clamping assembly is used to drive the second fiber array to be offset from the first fiber array by a certain angle in the left-right direction. The pressing assembly includes an adjusting pin, a pressure pin bracket, a pressure pin, and a tension spring. The adjusting pin passes through the mounting base. The pressure pin bracket is hinged to the mounting base, and one end of the pressure pin bracket is movably connected to the lower end of the adjusting pin. The pressure pin is movably connected to the pressure pin bracket and is used to press the second positioning block. The tension spring has two ends connected to the mounting base and the pressure pin bracket, respectively, and is used to drive the pressure pin to press the second positioning block. The positioning assembly includes a mounting frame and a micrometer knob assembly. The mounting frame is connected to the mounting base. The micrometer knob assembly is disposed on the mounting frame and is used to push the gripper cylinder to slide. The visual inspection device is disposed in front of the first fiber array and is used to detect the position of the first fiber array and the second fiber array.

[0006] The method of use includes: installing the first positioning block: press down the adjusting pin to lift the pressure pin, place one side of the first positioning block against the side wall of the stop platform, place it on the mounting base, slide the ejector pin until it abuts the first positioning block, and install the first fiber array in the mounting slot;

[0007] Install the second positioning block: Open the gripper cylinder, with the slot opening facing downwards, place the second positioning block above the first positioning block, install the second fiber array in the slot, and use the clamping gripper cylinder to clamp the second positioning block with the two grippers. Connect the two grippers with a rubber ring.

[0008] Coplanar adjustment: The front faces of the first positioning block, the second positioning block, the first fiber array, and the second fiber array are all set in the same plane;

[0009] Fix the pressure needle, loosen the adjusting pin, and the pressure needle presses down on the first and second positioning blocks under the action of the tension spring;

[0010] Fine adjustment: Adjust the visual inspection device to the same height as the first positioning block, turn on the visual inspection device, observe the visual signal transmitted by the visual inspection device, and adjust the micrometer knob assembly to bring the first fiber optic array and the second fiber optic array to the predetermined position.

[0011] The method of using a fiber optic array pre-assembly fixture according to an embodiment of the present invention has at least the following beneficial effects: The first and second positioning blocks ensure that the first and second fiber optic arrays are accurately loaded into specific positions, achieving precise positioning; the clamping and pressing components ensure that the first and second fiber optic arrays are firmly clamped and fixed, preventing movement or misalignment during assembly, thus achieving stable clamping; the visual inspection device allows for real-time monitoring of the positions of the first and second fiber optic arrays, ensuring assembly accuracy and quality; the clamping cylinders are adjustable as needed, suitable for upper positioning blocks of different sizes and shapes, improving versatility and flexibility; the rubber rings provide pre-tightening force for the two clamping blocks; fine adjustment via the micrometer knob assembly allows for more precise control of the positions of the first and second fiber optic arrays, ensuring the final assembly effect meets requirements; the entire fixture structure is rationally designed, with coordinated cooperation between components, facilitating operation and maintenance, and improving work efficiency and production quality; the method and structure of this fiber optic array pre-assembly fixture make the pre-assembly process of the double-layer fiber optic array more efficient and precise, while also improving assembly quality and stability, and facilitating use in the next process.

[0012] According to some embodiments of the present invention, the clamping assembly further includes a mounting block, one side of which is slidably connected to the mounting base, and the other side of which is connected to the gripper cylinder. The main shaft of the micrometer knob assembly abuts against the mounting block, and the micrometer knob assembly is used to push the mounting block to slide. The micrometer knob assembly can flexibly push the mounting block, and the adjustment assembly is suitable for workpieces of different sizes or shapes.

[0013] According to some embodiments of the present invention, both clamping blocks are provided with inclined structures on the side near the gripper cylinder, and the two inclined structures define a first clearance groove. The first clearance groove is provided to avoid obstructing the shooting angle of the visual inspection device.

[0014] According to some embodiments of the present invention, the mounting base is further provided with a second clearance groove.

[0015] According to some embodiments of the present invention, the other end of the pressure needle bracket is provided with a waist-shaped hole, and the pressure needle is connected to the waist-shaped hole by a first bolt.

[0016] According to some embodiments of the present invention, two first bolts are provided, both of which are positioned at the same horizontal level. The first bolts pass through the oblong hole and connect to the pressure needle. By using two bolts to engage with the oblong hole, a more robust and stable connection can be provided, thereby reducing the risk of loosening or displacement. At the same time, the arrangement of two bolts can evenly distribute the load, reducing wear or damage that may be caused by single-point loads. By increasing the number of connection points, the load-bearing capacity of the overall structure can be increased, making it more capable of withstanding external pressure and vibration.

[0017] According to some embodiments of the present invention, the end of the pressure pin near the second positioning block is configured in a "U" shape. This increases the contact area with the second positioning block, thereby increasing stability and tightness.

[0018] According to some embodiments of the present invention, the mounting block is provided with a slide rail, and a slider is provided on the side wall of the mounting base, the slide rail being used to guide the slider to slide.

[0019] According to some embodiments of the present invention, the ejector pin is provided with a plug, and the side wall of the mounting base is also provided with a slot, the plug being used to insert into the slot. The plug and the slot facilitate secure mounting of the ejector pin.

[0020] According to some embodiments of the present invention, the ejector pin is threaded with a second bolt, which is connected to the mounting base. The second bolt is used to adjust the position of the ejector pin. The second bolt facilitates the feeding and retraction of the ejector pin, and facilitates the loading and unloading of the first positioning block.

[0021] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0023] Figure 1 This is a schematic diagram of the structure of the fiber array pre-assembly fixture according to an embodiment of the present invention. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the structure of the fiber array pre-assembly fixture according to an embodiment of the present invention. Figure 2 ;

[0025] Figure 3 for Figure 1 The diagram shows the structure of the pressing component and the clamping component;

[0026] Figure 4 for Figure 1 The diagram shows the structure of the gripper cylinder and the gripper block;

[0027] Figure 5 for Figure 1 The diagram shows the structure of the slider and the slide rail;

[0028] Figure 6 for Figure 1 The diagram shows the structure of the second bolt, pin, insert, and slot.

[0029] Mounting base 100, second clearance groove 110, stop plate 120, ejector pin 130, insert block 131;

[0030] Slot 140, second bolt 150, slider 160;

[0031] First positioning block 200, mounting groove 210, second positioning block 300, snap groove 310;

[0032] Clamping assembly 400, gripper cylinder 410, clamping block 411, inclined structure 411a;

[0033] First clearance groove 412, mounting block 420, slide rail 430;

[0034] Pressing component 500, adjusting pin 510, pressing needle bracket 520, oblong hole 521;

[0035] Pressure pin 530, bolt 531, tension spring 540, connecting pin 550;

[0036] Adjustment assembly 600, mounting bracket 610, micrometer knob assembly 620;

[0037] Visual inspection device 700, first fiber optic array 800, second fiber optic array 900. Detailed Implementation

[0038] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the invention.

[0039] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0040] In the description of this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0041] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0042] Reference Figures 1 to 6A method for using a fiber optic array pre-assembly fixture, the fiber optic array pre-assembly fixture comprising: a mounting base 100, a pin 130, a first positioning block 200, a second positioning block 300, a clamping assembly 400, a pressing assembly 500, an adjusting assembly 600, and a visual inspection device 700; the mounting base 100 is provided with a stop platform 120; the pin 130 is slidably connected to the mounting base 100; the pin 130 abuts against the left side of the first positioning block 200, and the right side of the first positioning block 200 abuts against the side wall of the stop platform 120; the upper surface of the first positioning block 200 is provided with a plurality of mounting grooves 210, the mounting grooves 210 being used for... The first fiber array 800 is mounted; a second positioning block 300 is positioned above the first positioning block 200, and the lower end face of the second positioning block 300 is provided with several fastening slots 310 for mounting the second fiber array 900. The front end face of the second positioning block 300 is coplanar with the front end face of the first positioning block 200. A support plate is provided between the second positioning block 300 and the first positioning block 200 to support the first fiber array 800 and the second fiber array 900; the clamping assembly 400 includes a gripper cylinder 410, which is slidably connected to the mounting base 100, and has two output ends. Each component is connected to a clamping block 411, which is connected by a rubber ring. The clamping block 411 is used to clamp the second positioning block 300. The clamping assembly 400 is used to drive the second fiber array 900 and the first fiber array 800 to be offset by a certain angle in the left and right directions. The pressing assembly 500 includes an adjusting pin 510, a pressing needle bracket 520, a pressing needle 530, and a tension spring 540. The adjusting pin 510 passes through the mounting base 100. The pressing needle bracket 520 is hinged to the mounting base 100, and one end of the pressing needle bracket 520 is movably connected to the lower end of the adjusting pin 510. The pressing needle 530 is movably connected to the pressing needle bracket 520 and is used to press the second positioning block 300. Positioning block 300; tension spring 540 is connected at both ends to mounting base 100 and pressure needle bracket 520 respectively, and tension spring 540 is used to drive pressure needle 530 to press the second positioning block 300; adjustment assembly 600 includes: mounting frame 610 and micrometer knob assembly 620, mounting frame 610 is connected to mounting base 100; micrometer knob assembly 620 is disposed on mounting frame 610, and micrometer knob assembly 620 is used to push gripper cylinder 410 to slide; visual inspection device 700 is disposed in front of first fiber array 800, and visual inspection device 700 is used to detect the position of first fiber array 800 and second fiber array 900.

[0043] The method of use includes: installing the first positioning block: pressing down the adjusting pin 510 and lifting the pressure pin 530, placing one side of the first positioning block 200 against the side wall of the stop platform 120, placing it on the mounting base 100, sliding the top pin 130 until it abuts the first positioning block 200, and installing the first fiber array 800 in the mounting groove 210.

[0044] Install the second positioning block: Open the gripper cylinder 410, with the slot 310 opening downwards, place the second positioning block 300 above the first positioning block 200, install the second fiber array 900 in the slot 310, and use the aggregate gripper cylinder 410 to clamp the second positioning block 300 with two clamping blocks 411, and connect the two clamping blocks 411 with a rubber ring.

[0045] Coplanar adjustment: The front faces of the first positioning block 200, the second positioning block 300, the first fiber array 800, and the second fiber array 900 are all set in the same plane.

[0046] Fix the pressure needle, loosen the adjusting pin 510, and the pressure needle 530 presses down on the first positioning block 200 and the second positioning block 300 under the action of the tension spring 540;

[0047] Fine adjustment: Adjust the visual inspection device 700 to the same height as the first positioning block 200, turn on the visual inspection device 700, observe the visual signal transmitted by the visual inspection device 700, and adjust the micrometer knob assembly 620 to bring the first fiber array 800 and the second fiber array 900 to the predetermined position.

[0048] The first positioning block 200 and the second positioning block 300 ensure that the first fiber array 800 and the second fiber array 900 are accurately loaded into specific positions, achieving precise positioning. The design of the clamping and pressing components ensures that the first fiber array 800 and the second fiber array 900 are firmly clamped and fixed, preventing movement or misalignment during assembly, thus achieving stable clamping. The visual inspection device 700 allows for real-time monitoring of the positions of the first fiber array 800 and the second fiber array 900, ensuring assembly accuracy and quality. The gripper cylinder 410 can be adjusted as needed to accommodate different sizes and shapes. The upper positioning block 300 improves versatility and flexibility, and the rubber ring provides pre-tightening force for the two clamping blocks 411. Fine adjustment is achieved through the micrometer knob assembly 620. This fine adjustment allows for more precise control of the positions of the first fiber array 800 and the second fiber array 900, ensuring that the final assembly meets requirements. The entire fixture structure is rationally designed, with coordinated cooperation between components, facilitating operation and maintenance, and improving work efficiency and production quality. The usage method and structure of this fiber array pre-assembly fixture make the pre-assembly process of the double-layer fiber array more efficient and precise, while also improving assembly quality and stability, and facilitating use in the next process.

[0049] In some embodiments, the clamping assembly 400 further includes a mounting block 420, one side of which is slidably connected to the mounting base 100, and the other side of which is connected to a gripper cylinder 410. The spindle of the micrometer knob assembly 620 abuts against the mounting block 420, and the micrometer knob assembly 620 is used to push the mounting block 420 to slide. The micrometer knob assembly 620 is configured to flexibly push the mounting block 420. It is understood that the gripper cylinder 410 can be replaced with a spring.

[0050] In some embodiments, the aforementioned active connection refers to the vertical movement of the pressure pin 530 to press the second positioning block 300. It is understood that the pressing component 500 can be replaced by a push cylinder to achieve the function of pressing down the first positioning block 200 and the second positioning block 300.

[0051] In some embodiments, each of the two clamping blocks 411 is provided with an inclined structure 411a on the side near the gripper cylinder 410, and the two inclined structures 411a define a first clearance groove 412. The first clearance groove 412 is provided to avoid obstructing the shooting angle of the visual inspection device 700.

[0052] In some embodiments, the mounting base 100 is further provided with a second clearance groove 110. The first clearance groove 412 is provided to avoid obstructing the shooting angle of the vision inspection device 700. It should be noted that the vision inspection device 700 can be configured as an industrial CCD camera, an infrared camera, or a webcam, etc.

[0053] In some embodiments, the other end of the pressure needle bracket 520 is provided with a waist-shaped hole 521, and the pressure needle 530 is connected to the waist-shaped hole 521 by a first bolt 531.

[0054] In some embodiments, two first bolts 531 are provided, both at the same horizontal level, and the first bolts 531 pass through the oblong hole 521 to connect to the pressure pin 530. By using two bolts 531 to engage with the oblong hole 521, a more robust and stable connection can be provided, thereby reducing the risk of loosening or displacement. Simultaneously, the arrangement of two bolts 531 can evenly distribute the load, reducing wear or damage that may result from single-point loads. By increasing the number of connection points, the overall load-bearing capacity of the structure can be increased, making it more capable of withstanding external pressure and vibration. It is understood that the number of bolts 531 can also be one, three, four, or more. Furthermore, it should be noted that "at the same horizontal level" means approximately at the same height, not strictly at the same mathematical level.

[0055] In some embodiments, the end of the pressure pin 530 near the second positioning block 300 is configured as a "U" shape. This increases the contact surface with the second positioning block 300, thereby increasing stability and tightness. It is understood that there can be multiple pressure pins 530, and the end of the pressure pin 530 near the second positioning block 300 can also be configured as a rounded rectangle.

[0056] In some embodiments, the mounting block 420 is provided with a slide rail 430, and the mounting base 100 is provided with a slider 160 on its side wall. The slide rail 430 is used to guide the slider 160 to slide.

[0057] In some embodiments, the ejector pin 130 is provided with an insertion block 131, and the side wall of the mounting base 100 is also provided with a slot 140, the insertion block 131 being used to insert into the slot 140. The insertion block 131 and the slot 140 facilitate the secure installation of the ejector pin 130. It is understood that the insertion block 131 into the slot 140 can also be configured as a combination of a slider, a slide rail, and a stop, that is, either the ejector pin 130 or the mounting base 100 is provided with a slider, the other is provided with a slide rail, and a stop is detachably provided on the slide rail to prevent the ejector pin 130 from sliding.

[0058] In some embodiments, a second bolt 150 is threaded through the ejector pin 130 and connected to the mounting base 100. The second bolt 150 is used to adjust the position of the ejector pin 130. The second bolt 150 facilitates the feeding and retraction of the ejector pin 130, and facilitates the installation and removal of the first positioning block 200. It is understood that the method of adjusting the ejector pin 130 by the threaded connection of the second bolt 150 to the mounting base 100 can also be configured to use a cylinder to drive the ejector pin 130.

[0059] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A method of using a fiber optic array pre-assembly fixture, characterized in that, The fiber array pre-assembly fixture includes: The mounting base (100) is provided with a stop plate (120). The ejector pin (130) is slidably connected to the mounting base (100); The first positioning block (200) has a pin (130) abutting against the left side of the first positioning block (200), and the right side of the first positioning block (200) abutting against the side wall of the stop (120). The upper surface of the first positioning block (200) is provided with a plurality of mounting slots (210), which are used to load the first fiber array (800). The second positioning block (300) is disposed above the first positioning block (200). The lower end face of the second positioning block (300) is provided with a plurality of slots (310), which are used to load the second fiber array (900). The front end face of the second positioning block (300) is coplanar with the front end face of the first positioning block (200). A support plate is disposed between the second positioning block (300) and the first positioning block (200), which is used to support the first fiber array (800) and the second fiber array (900). The clamping assembly (400) includes a gripper cylinder (410), which is slidably connected to the mounting base (100). Two output ends of the gripper cylinder (410) are respectively connected to clamping blocks (411). The two clamping blocks (411) are connected by a rubber ring. The clamping blocks (411) are used to clamp the second positioning block (300). The clamping assembly (400) is used to drive the second fiber array (900) and the first fiber array (800) to be offset by a certain angle in the left and right directions. The pressing assembly (500) includes an adjusting pin (510), a pressure needle bracket (520), a pressure needle (530), and a tension spring (540). The adjusting pin (510) passes through the mounting base (100). The pressure needle bracket (520) is hinged to the mounting base (100), and one end of the pressure needle bracket (520) is movably connected to the lower end of the adjusting pin (510). The pressure needle (530) is movably connected to the pressure needle bracket (520) and is used to press the second positioning block (300). The two ends of the tension spring (540) are respectively connected to the mounting base (100) and the pressure needle bracket (520), and the tension spring (540) is used to drive the pressure needle (530) to press the second positioning block (300). The adjustment assembly (600) includes: a mounting bracket (610) and a micrometer knob assembly (620), wherein the mounting bracket (610) is connected to the mounting base (100); the micrometer knob assembly (620) is disposed on the mounting bracket (610) and is used to push the gripper cylinder (410) to slide; A visual inspection device (700) is disposed in front of the first fiber array (800), and the visual inspection device (700) is used to detect the positions of the first fiber array (800) and the second fiber array (900). Usage instructions include: Install the first positioning block: Press down the adjusting pin (510) to lift the pressure pin (530), place one side of the first positioning block (200) against the side wall of the stop platform (120), place it on the mounting base (100), slide the top pin (130) until it abuts the first positioning block (200), and install the first fiber array (800) in the mounting groove (210); Install the second positioning block: Open the gripper cylinder (410), with the slot (310) opening downwards, place the second positioning block (300) above the first positioning block (200), install the second fiber array (900) in the slot (310), and use the aggregate gripper cylinder (410) to clamp the second positioning block (300) with two clamping blocks (411), and connect the two clamping blocks (411) with a rubber ring. Coplanar adjustment: The front faces of the first positioning block (200), the second positioning block (300), the first fiber array (800), and the second fiber array (900) are all set in the same plane; Fix the pressure pin, loosen the adjusting pin (510), and the pressure pin (530) presses down on the first positioning block (200) and the second positioning block (300) under the action of the tension spring (540); Fine adjustment: Adjust the visual inspection device (700) to the same height as the first positioning block (200), turn on the visual inspection device (700), observe the visual signal transmitted by the visual inspection device (700), and adjust the micrometer knob assembly (620) to bring the first fiber array (800) and the second fiber array (900) to the predetermined position.

2. The method of using the fiber optic array pre-assembly fixture according to claim 1, characterized in that, The clamping assembly (400) further includes a mounting block (420), one side of which is slidably connected to the mounting base (100), and the other side of which is connected to the gripper cylinder (410).

3. The method of using the fiber optic array pre-assembly fixture according to claim 2, characterized in that, Both clamping blocks (411) are provided with inclined structures (411a) on the side near the clamping cylinder (410), and the two inclined structures (411a) define the first clearance groove (412).

4. The method of using the fiber optic array pre-assembly fixture according to claim 1, characterized in that, The mounting base (100) is also provided with a second clearance groove (110).

5. The method of using the fiber optic array pre-assembly fixture according to claim 2, characterized in that, The other end of the pressure needle bracket (520) is provided with a waist-shaped hole (521), and the pressure needle (530) is connected in the waist-shaped hole (521) by a first bolt (531).

6. The method of using the fiber optic array pre-assembly fixture according to claim 5, characterized in that, There are two first bolts (531), and the two first bolts (531) are set at the same horizontal height. The first bolts (531) pass through the waist-shaped hole (521) and connect to the pressure needle (530).

7. The method of using the fiber optic array pre-assembly fixture according to claim 6, characterized in that, The end of the pressure needle (530) near the second positioning block (300) is configured as a "U" shape.

8. The method of using the fiber optic array pre-assembly fixture according to claim 7, characterized in that, The mounting block (420) is provided with a slide rail (430), and a slider (160) is provided on the side wall of the mounting base (100). The slide rail (430) is used to guide the slider (160) to slide.

9. The method of using the fiber optic array pre-assembly fixture according to claim 1, characterized in that, The ejector pin (130) is provided with a plug (131), and the mounting base (100) is also provided with a slot (140) on its side wall. The plug (131) is used to insert into the slot (140).

10. The method of using the fiber optic array pre-assembly fixture according to claim 9, characterized in that, The ejector pin (130) is connected to a second bolt (150), which is threaded to the mounting base (100). The second bolt (150) is used to adjust the position of the ejector pin (130).

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