A method for cleaning fiber array v-groove / cover plate

Abstract

The present application relates to the technical field of optical fiber array production, and discloses a cleaning method for V-groove / cover plate of optical fiber array, which comprises the following steps: ultrasonic washing with oil stain removal water once, ultrasonic washing with alcohol twice, and ultrasonic washing with isopropyl alcohol twice in sequence. Compared with the prior art, the method does not need human contact cleaning, can effectively avoid damage caused by chemical cleaning agents, and is cleaner.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of optical fiber array, in particular to a kind of optical fiber array V groove / cover plate cleaning method. BACKGROUND

[0002] Optical fiber array is to install one or a bundle of light drive on array substrate, wherein there is V groove on array substrate, and cover plate is covered on substrate. Before optical fiber array assembly, V groove substrate and cover plate need to be cleaned to keep clean, so as to avoid affecting product performance. Currently commonly used cleaning method is to first use non-falling wool cloth to dip alcohol to wipe V groove substrate / cover plate surface, then V groove substrate and cover plate are loaded into simple fixture, and then loaded into deionized water and assisted with ultrasonic vibration cleaning. Manual piece-by-piece wiping is very troublesome, and fixture loading cleaning is difficult to clean comprehensively because V groove substrate and cover plate are inserted into fixture during cleaning process, and after cleaning, workers use tweezers to unload one by one, which is easy to contaminate cleaned V groove substrate / cover plate, and affect final product performance. SUMMARY

[0003] In view of the above problems existing in the prior art, the purpose of the present application is to provide a kind of optical fiber array V groove / cover plate cleaning method, which can clean V groove and cover plate clean, and protect V groove and cover plate from being damaged.

[0004] To achieve the above purpose, one of the technical solutions adopted by the present application is: a kind of optical fiber array V groove / cover plate cleaning method, characterized by the following steps:

[0005] Step 1), prepare cleaning equipment, the cleaning equipment includes fixture, multiple cleaning cups, ultrasonic washing box, the fixture is placed in the cleaning cup, the cleaning cup is fixed in the ultrasonic washing box, first clean the cleaning equipment and dry, then load the V groove substrate or cover plate to be cleaned into the fixture;

[0006] Step 2), place the fixture loaded with V groove substrate or cover plate into the cleaning cup containing oil stain removal water, the amount of oil stain removal water is just enough to immerse V groove substrate or cover plate, turn on the ultrasonic washing for 9-15 minutes, and change the loading position of V groove substrate or cover plate during the cleaning process, and the changing time is after 2 / 3 of the washing time of this step;

[0007] Step 3), place the fixture loaded with V groove substrate or cover plate into one of the cleaning cups containing alcohol with a concentration of more than 75% by volume, the amount of alcohol is just enough to immerse V groove substrate or cover plate, and turn on the ultrasonic washing for 9-15 minutes;

[0008] Step 4), the fixture with V-groove substrate or cover plate is placed in another cleaning cup with alcohol of more than 75% volume concentration, the alcohol is just enough to immerse the V-groove substrate or cover plate, and the ultrasonic cleaning is started for 9-15 minutes, and the clamping position of the V-groove substrate or cover plate is replaced during the cleaning process, and the replacement time is after 2 / 3 of the cleaning time of this step;

[0009] Step 5), the fixture with V-groove substrate or cover plate is placed in one of the cleaning cups with isopropyl alcohol of 4-6% volume concentration, the isopropyl alcohol is just enough to immerse the V-groove substrate or cover plate, and the ultrasonic cleaning is started for 9-15 minutes;

[0010] Step 6), the fixture with V-groove substrate or cover plate is placed in another cleaning cup with isopropyl alcohol of 4-6% volume concentration, the isopropyl alcohol is just enough to immerse the V-groove substrate or cover plate, and the ultrasonic cleaning is started for 9-15 minutes, and the clamping position of the V-groove substrate or cover plate is replaced during the cleaning process, and the replacement time is after 2 / 3 of the cleaning time of this step;

[0011] Step 7), the cleaned fixture with V-groove substrate or cover plate is taken out, the V-groove substrate or cover plate is sucked out from the fixture by negative pressure adsorption, and then is sent into the oven at 110℃ for 25-35 minutes.

[0012] Preferably, the fixture comprises an upper clamping plate, a lower clamping plate, a lifting assembly and an inflation assembly, a plurality of clamping holes are formed in the upper clamping plate and the lower clamping plate, and the clamping holes in the upper clamping plate correspond to the clamping holes in the lower clamping plate one by one; at least two air bags are fixedly connected to the inner wall of each clamping hole, and the size of the clamping hole is larger than that of the V-groove substrate or cover plate; the inflation assembly is arranged on the upper clamping plate and the lower clamping plate, the inflation assembly on the upper clamping plate is finally connected with all the air bags on the upper clamping plate, and the inflation assembly on the lower clamping plate is finally connected with all the air bags on the lower clamping plate; at least two lifting assemblies are fixedly connected between the upper clamping plate and the lower clamping plate, and the upper clamping plate and the lower clamping plate are driven to approach or move away by the synchronous action of the lifting assemblies; a lifting part is fixedly connected to the center of the top of the upper clamping plate, and a supporting leg is fixedly connected to the bottom of the lower clamping plate.

[0013] Preferably, the cleaning device further comprises a support base, a belt conveyor and a transfer assembly, wherein the support base is rotationally connected with the ultrasonic cleaning box at the top, and a rotating shaft is fixedly connected to the bottom of the ultrasonic cleaning box, the rotating shaft penetrates downward from the center of the support base and is fixedly connected with the output shaft of the first servo motor at the bottom; a first automatic lifting column is fixedly connected to the center of the bottom of the ultrasonic cleaning box, five support rods are fixedly connected to the top of the first automatic lifting column, and an ultrasonic vibration rod is fixedly connected to each support rod at a position corresponding to each cleaning cup; under the action of the first automatic lifting column, the ultrasonic vibration rod extends into or leaves the corresponding cleaning cup; at least two belt conveyors are fixed to the support base, and a transfer assembly for transferring the clamp between the cleaning cups or between the cleaning cups and the belt conveyor is fixed above each belt conveyor.

[0014] Preferably, the transfer assembly comprises a fixed beam, a horizontal sliding rail, a sliding block, a lead screw, a second servo motor, a second automatic lifting column and a lifting piece matched with the clamp lifting piece, wherein the fixed beam is fixed to the rack of the corresponding belt conveyor, one end of the fixed beam is located above the tail section of the corresponding conveyor, and the other end is located above one of the cleaning cups; a horizontal sliding rail is fixedly connected to each side of the fixed beam in the width direction, and the extending direction of the horizontal sliding rail is consistent with the extending direction of the fixed beam; a lead screw is arranged between the two horizontal sliding rails, the two ends of the lead screw are rotationally connected with two bearing seats fixedly connected to the fixed beam, one end of the lead screw penetrates out of the corresponding bearing seat and is fixedly connected with the output shaft of the second servo motor; a threaded hole is formed in the sliding block for the lead screw to penetrate, and the sliding block is threadedly connected with the lead screw; the sliding block is embedded in the two horizontal sliding rails at the two sides, and the sliding block moves linearly along the horizontal sliding rail; the second automatic lifting column is fixedly connected to the bottom of the sliding block, and the lifting piece is fixedly connected to the bottom of the second automatic lifting column.

[0015] Preferably, three liquid storage tanks are further fixedly connected to the support base for temporarily storing oil stain removal water, alcohol and isopropyl alcohol respectively; a pressurizing pump is connected to one side of the bottom of each liquid storage tank through a pipeline, the outlet of each pressurizing pump is connected with a liquid outlet pipe, and the other end of each liquid outlet pipe is connected with a liquid drain faucet; all the liquid drain faucets are located above one of the cleaning cups.

[0016] Compared with the prior art, the present application has the following beneficial effects:

[0017] The present application adopts the sequence of ultrasonic cleaning with oil stain removal water once, ultrasonic cleaning with alcohol twice and ultrasonic cleaning with isopropyl alcohol twice, which can effectively avoid the damage of chemical cleaning agents and clean more thoroughly without human contact.

[0018] The present application respectively replaces the clamping position after 2 / 3 of the length of the oil stain removal water rinsing, after 2 / 3 of the length of the last alcohol rinsing, and after 2 / 3 of the length of the last isopropyl alcohol rinsing, realizes the omnibearing cleaning of the V-groove substrate or cover plate, and the cleaning is relatively cleaner;

[0019] The clamping jig of the present application can effectively replace the clamping position, provides equipment guarantee for the omnibearing cleaning of the V-groove substrate or cover plate, and can avoid product quality problems caused by the fact that the clamping position cannot be cleaned;

[0020] The cleaning equipment of the present application can realize automatic feeding (putting the jig into the cleaning cup), discharging (taking out the jig from the cleaning cup) and transferring, avoids human contact with the cleaning liquid, and the structure design of the clamping jig can realize the separation of the V-groove substrate or cover plate from the jig, avoiding human taking out one by one with tweezers;

[0021] The cleaning equipment of the present application has compact structure and relatively small floor area. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The figure is a structure top view of the cleaning equipment of the present application;

[0023] Figure 2 The figure is a structure side view of the jig of the present application;

[0024] Figure 3 The figure is a bottom view of the upper clamping plate or lower clamping plate of the jig of the present application;

[0025] Figure 4 The figure is an upper part view of the V-groove substrate or cover plate clamped by the air bag in any one clamping hole of the present application;

[0026] Figure 5 The figure is a structure side view of the transferring assembly of the present application;

[0027] Figure 6 The figure is a structure side view of the support seat, ultrasonic rinsing box, cleaning cup, ultrasonic vibration rod and the like of the present application;

[0028] The components include: 1. Support base; 2. Ultrasonic vibrating washing box; 3. First servo motor; 4. Cleaning cup; 5. First automatic lifting column; 6. Support rod; 7. Ultrasonic vibrating rod; 8. Clamp; 8.1. Upper clamping plate; 8.2. Lower clamping plate; 8.3. Lifting assembly; 8.4. Inflating assembly; 8.41. Small blow-suction dual-purpose air pump; 8.42. Air supply pipe; 8.5. Clamping hole; 8.6. Airbag; 8.7. Lifting component; 9. Transfer assembly; 9.1. Fixed beam; 9.2. Horizontal slide rail; 9.3. Slider; 9.4. Lead screw; 9.5. Second servo motor; 9.6. Second automatic lifting column; 9.7. Lifting component; 10. Belt conveyor; 11. Liquid storage tank; 12. Pressure pump; 13. Liquid drain tap; 14. V-groove base plate or cover plate; 15. Liquid drain pipe. Detailed Implementation

[0029] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. The following are merely preferred embodiments of this application and are not intended to limit the scope of protection of the present invention. Any equivalent or similar substitutions that do not depart from the concept of this application should fall within the scope of protection of the present invention. Parts not described in detail below refer to existing technologies in the art. Example

[0030] like Figures 1-6 As shown, the cleaning equipment in this embodiment includes a support base, an ultrasonic vibrating washing box, an ultrasonic vibrating rod, a cleaning cup, a clamp, a belt conveyor, and a transfer assembly.

[0031] The support base 1 is supported on the ground by three legs arranged in an equilateral triangle or four legs arranged in a rectangle. A central hole is opened in the center of the support base 1, penetrating its upper and lower parts. An annular groove is opened on the top of the support base 1 and on the outer periphery of the central hole. An annular slider is fixedly connected to the bottom of the ultrasonic cleaning box 2 at the position corresponding to the groove. The rotational engagement between the ultrasonic cleaning box 2 and the support base 1 is achieved through the cooperation of the groove and the annular slider. A rotating shaft is fixedly connected to the bottom of the ultrasonic cleaning box 2. The rotating shaft passes through the central hole of the support base 1 and is fixedly connected to the output shaft of the first servo motor 3 at the bottom. The first servo motor 3 drives the ultrasonic cleaning box 2 to rotate, thereby rotating the corresponding cleaning cup 4 to the required position. For example, when it is necessary to put different cleaning solutions (degreasing water, alcohol, isopropyl alcohol) into different cleaning cups 4, it is necessary to rotate the different cleaning cups 4 to the bottom of the liquid outlet. Also, when transferring the clamp into cleaning cups of different cleaning solutions, it is also achieved by rotating the ultrasonic cleaning box 2.

[0032] In the ultrasonic washing box 2 is fixedly connected with five cleaning cups 4, in the bottom center position of the ultrasonic washing box 2 is fixedly connected with a first automatic lifting column 5, the first automatic lifting column 5 can be an existing electric lifting column or a telescopic cylinder (with telescopic rod), five supporting rods 6 are fixedly connected on the top of the first automatic lifting column 5, the five supporting rods 6 correspond to the five cleaning cups 4, an ultrasonic vibration rod 7 is fixedly connected on each supporting rod 6 and corresponds to the position of each cleaning cup 4, under the action of the first automatic lifting column 5, the ultrasonic vibration rod 7 enters or leaves the corresponding cleaning cup 4, the ultrasonic vibration rod 7 enters the liquid in the cleaning cup 4 to realize ultrasonic vibration cleaning, and the purpose of the ultrasonic vibration rod 7 leaving the cleaning cup 4 is to facilitate the rotation of the cleaning cup 4. A liquid discharge pipe 15 is fixedly connected and communicated at the bottom of each cleaning cup 4, each liquid discharge pipe passes through the bottom of the ultrasonic washing box and is connected with a liquid discharge valve at the end, for discharging the corresponding type of cleaning liquid.

[0033] In each cleaning cup 5, one or more clamps 8 can be placed, each clamp 8 comprising an upper clamp plate 8.1, a lower clamp plate 8.2, a lifting assembly 8.3, and an inflation assembly 8.4. A plurality of rectangular clamping holes 8.5 are formed on the upper clamp plate 8.1 and the lower clamp plate 8.2, and the clamping holes 8.5 on the upper clamp plate 8.1 correspond one-to-one with the clamping holes 8.5 on the lower clamp plate 8.2. The upper and lower corresponding two clamping holes 8.5 are used to clamp the upper and lower parts of the same V-groove substrate or cover plate, and the size (specifically the length and width) of the clamping hole 8.5 is larger than that of the clamped V-groove substrate or cover plate. An air bag 8.6 is fixedly connected to the inner wall on both sides of the clamping hole 8.5 in the length direction. The upper clamp plate 8.1 and the lower clamp plate 8.2 are fixedly connected with the inflation assembly 8.4, which specifically comprises a small blow-suction dual-purpose air pump 8.41 and a gas pipeline 8.42. The pressurized gas pumped out by the small blow-suction dual-purpose air pump is sent to all air bags 8.6 on the corresponding clamp plate through multiple gas pipelines to inflate all air bags to achieve clamping. Three lifting assemblies 8.3 are fixedly connected between the upper clamp plate 8.1 and the lower clamp plate 8.2. The lifting assembly 8.3 is an electric lifting rod or a gas cylinder piston rod in the prior art. The three lifting assemblies 8.3 are synchronously actuated to drive the upper clamp plate 8.1 and the lower clamp plate 8.2 to approach or move away from each other. When the air bags on the upper clamp plate 8.1 are inflated to achieve clamping, and the air bags on the lower clamp plate 8.2 are deflated to release clamping, and the upper clamp plate 8.1 and the lower clamp plate 8.2 move away from each other through the lifting assembly, the upper part of the V-groove substrate or cover plate is clamped. Conversely, the air bags on the upper clamp plate are deflated to release clamping, and the air bags on the lower clamp plate are inflated to achieve clamping. When the upper and lower clamp plates move away from each other, the lower part of the V-groove substrate or cover plate is clamped. In actual cleaning, the upper and lower parts are clamped together and sent into the cleaning cup, then the lower part is clamped first for cleaning the upper part, and the upper part is clamped later for cleaning the lower part. A lifting member 8.7 (specifically comprising a fixed column fixedly connected to the top center of the upper clamp plate 8.1, and a metal block fixedly connected to the top of the fixed column and capable of being attracted by an electromagnet) is fixedly connected to the top center of the upper clamp plate 8.1. Three support legs arranged in an equilateral triangle are fixedly connected to the bottom of the lower clamp plate 8.2. The lower clamp plate 8.2 is supported by the support legs in the cleaning cup to achieve a suitable gap between the lower clamp plate 8.2 and the inner bottom of the cleaning cup, facilitating ultrasonic washing, making the washing cleaner, and avoiding the bottom of the V-groove substrate or cover plate from contacting the inner bottom of the cleaning cup.

[0034] Three liquid storage tanks 11 are fixedly connected to the support base 1, for temporarily storing the three liquids of oil stain removal water, alcohol and isopropyl alcohol respectively; one side of the bottom of each liquid storage tank 11 is connected to a pressurizing pump 12 through a pipeline, the outlet of each pressurizing pump 12 is connected to a liquid outlet pipe, the other end of each liquid outlet pipe is connected to a liquid outlet faucet 13, and the three liquid outlet faucets 13 are located above one of the cleaning cups 5. When a certain cleaning cup 5 is rotated to below the three liquid outlet faucets 13, the corresponding liquid outlet faucet 13 is opened to pour the corresponding cleaning liquid, and in detail, the five cleaning cups 5 are sequentially filled with the three cleaning liquids of oil stain removal water, alcohol, alcohol, isopropyl alcohol and isopropyl alcohol.

[0035] A transfer assembly 9 is fixed above each of the two adjacent cleaning cups 5, and a belt conveyor 10 is arranged below each transfer assembly 8, one end of the belt conveyor 10 is fixedly connected to the support base 1, and the belt conveyor 10 is used to send the clamps with uncleaned workpieces into the cleaning cups or to transfer the V-groove substrates or cover plates that have been cleaned to the next drying process.

[0036] The transfer assembly 9 includes a fixed beam 9.1, horizontal sliding rails 9.2, a sliding block 9.3, a lead screw 9.4, a second servo motor 9.5, a second automatic lifting column 9.6, and a lifting piece 9.7 cooperating with the clamp lifting piece 8.7. The fixed beam 9.1 is fixed to the rack of the corresponding belt conveyor 10, one end of the fixed beam 9.1 is located above the tail section of the corresponding belt conveyor 10, and the other end is located above the corresponding cleaning cup 5. A horizontal sliding rail 9.2 is fixedly connected to each side of the fixed beam 9.1 in the width direction, and the extension direction of the horizontal sliding rail 9.2 is consistent with the extension direction of the fixed beam 9.1. A lead screw 9.4 is arranged between the two horizontal sliding rails 9.2, the two ends of the lead screw 9.4 are rotatably connected to two bearing seats fixed to the fixed beam 9.1 at a position adapted thereto, and one end of the lead screw 9.4 is fixedly connected to the output shaft of the second servo motor 9.5 after extending from the corresponding bearing seat. The sliding block 9.3 has a threaded hole through which the lead screw 9.4 passes, and the sliding block 9.3 is threadedly connected to the lead screw 9.4. The sliding block 9.3 is embedded in the two horizontal sliding rails 9.2 on both sides and moves linearly along the horizontal sliding rails 9.2. The second automatic lifting column 9.6 is fixedly connected to the bottom of the sliding block 9.3, and the lifting piece 9.7 is fixedly connected to the bottom of the second automatic lifting column 9.6. The lifting piece 9.7 is an electromagnet. Under the drive of the second servo motor 9.5, the sliding block 9.3 moves linearly along the horizontal sliding rails 9.2 to lift the clamp with the workpiece on the belt conveyor 10 into the corresponding cleaning cup, or to lift the clamp with the workpiece that has been cleaned in the cleaning cup into the next cleaning cup or onto the corresponding belt conveyor 10.

[0037] The specific cleaning method is as follows:

[0038] Step 1), first clean the cleaning equipment and dry it, then put the V-groove substrate or cover plate to be cleaned into the clamp, then put the clamped clamp into the left belt conveyor 10 to the left of the transfer assembly 9, then put the clamped workpiece into one of the cleaning cups 4 (the cleaning cup has been placed below the liquid outlet faucet) through the transfer assembly 9, then expose the upper part of it, put the oil stain removal water into the cleaning cup 4, start the lifting assembly of the clamp 8, make the upper and lower clamping plates far away, and make the air bag of the lower clamping plate 8.2 inflated and the air bag 8.6 of the upper clamping plate in the un-inflated state, clamp the lower part of the V-groove substrate or cover plate 14 to expose the upper part, turn on the ultrasonic vibration rod for 10 minutes, then start the lifting assembly of the clamp 8, make the upper and lower clamping plates 8.1, 8.2 far away, and make the air bag 8.6 of the upper clamping plate 8.1 inflated and the air bag of the lower clamping plate in the un-inflated state, clamp the upper part of the V-groove substrate or cover plate to expose the lower part, continue to turn on the ultrasonic vibration for 5 minutes, and then the clamp returns to the state of the upper and lower clamping plates close together (i.e. clamping the upper and lower parts of the workpiece), the left second automatic lifting column lifts the clamp, and the clamp clamping the V-groove substrate or cover plate 14 is taken out of the cleaning cup 4 containing the oil stain removal water;

[0039] Step 2), after step 1) is completed, rotate the ultrasonic vibration box 2 counterclockwise to make the second cleaning cup 4 located below the liquid outlet faucet 13, lower the second automatic lifting column to put the clamp into the second cleaning cup 4, open the pressurized pump, liquid outlet faucet, etc. with alcohol concentration of more than 75% by volume, put alcohol with concentration of more than 75% by volume into the second cleaning cup 4, the amount of alcohol is just enough to immerse the V-groove substrate or cover plate 14, turn on the ultrasonic vibration rod for 9-15 minutes, after completion, the left second automatic lifting column 9.6 rises to lift the clamp 8 from the second cleaning cup 4; at the same time, the belt conveyor and the transfer assembly on the right side start to work, the clamp containing the workpiece to be cleaned is conveyed by the belt conveyor on the right side, transferred to the first cleaning cup below the transfer assembly through the transfer assembly, and the cleaning cup contains oil stain removal water, which is cleaned in the same way as step 1) to remove oil stains from the second batch of workpieces, and the clamp is also lifted out after cleaning; each cleaning liquid is used only twice, after two times, open the liquid outlet valve to discharge the used cleaning liquid through the liquid outlet pipe 15;

[0040] Step 3), continue to rotate the ultrasonic washing box 2 counterclockwise, so that the third cleaning cup 4 is located below the liquid outlet faucet 13, start the left second automatic lifting column to descend, put the clamp into the third cleaning cup, then start the lifting assembly 8.3 of the clamp to expose the upper part of the V-groove substrate or cover plate, open the pressurized pump, liquid outlet faucet, etc. of 75% or more volume concentration alcohol again, put 75% or more volume concentration alcohol into the third cleaning cup 4, the amount of alcohol is just to immerse the V-groove substrate or cover plate 14, start the ultrasonic vibration rod to wash for 10 minutes, then start the lifting assembly 8.3 of the clamp 8 to make the upper and lower clamping plates away from each other, and make the upper and lower clamping plates 8.1, 8.2 away from each other, and make the air bag 8.6 of the upper clamping plate 8.1 inflate and the air bag of the lower clamping plate in the un-inflated state, clamp the upper part of the V-groove substrate or cover plate to expose the lower part, continue to open the ultrasonic washing for 5 minutes, after cleaning, the clamp returns to the state that the upper and lower clamping plates are close to each other, and the corresponding clamp is lifted out; at the same time, the right transfer assembly and belt conveyor complete the first alcohol cleaning operation of step 2);

[0041] Step 4), continue to rotate the ultrasonic washing box 2 counterclockwise, so that the fourth cleaning cup is rotated to be below the liquid outlet faucet, the right transfer assembly works to lift the clamp of the V-groove substrate or cover plate into the fourth cleaning cup, then put 6% isopropyl alcohol into the fourth cleaning cup, the amount of isopropyl alcohol is just to immerse the V-groove substrate or cover plate, open the ultrasonic washing for 9-15 minutes, after completion, lift out the clamp; at the same time, the right transfer assembly and belt conveyor complete the second alcohol cleaning operation of step 3);

[0042] Step 5), continue to rotate the ultrasonic washing box 2 counterclockwise, so that the fifth cleaning cup 4 is located below the liquid outlet faucet 13, start the left second automatic lifting column to descend, put the clamp into the fifth cleaning cup, then start the lifting assembly 8.3 of the clamp to expose the upper part of the V-groove substrate or cover plate, open the pressurized pump, liquid outlet faucet, etc. of 6% volume concentration isopropyl alcohol again, put 6% isopropyl alcohol into the fifth cleaning cup 4, the amount of 6% isopropyl alcohol is just to immerse the V-groove substrate or cover plate 14, open the ultrasonic vibration rod to wash for 10 minutes, then start the lifting assembly 8.3 of the clamp 8 to make the upper and lower clamping plates away from each other, and make the upper and lower clamping plates 8.1, 8.2 away from each other, and make the air bag 8.6 of the upper clamping plate 8.1 inflate and the air bag of the lower clamping plate in the un-inflated state, clamp the upper part of the V-groove substrate or cover plate to expose the lower part, continue to open the ultrasonic washing for 5 minutes, after cleaning, the clamp returns to the state that the upper and lower clamping plates are close to each other, and the corresponding clamp is lifted out, finally, the corresponding clamp is lifted to the left belt conveyor, and is transported to the next drying process; at the same time, the right transfer assembly and belt conveyor complete the first isopropyl alcohol cleaning operation of step 4);

[0043] Step 6) After the second isopropyl alcohol cleaning is completed, the workpiece (i.e. V-groove substrate or cover plate) is transported by the belt conveyor to a centralized shower basin (the shower basin is cleaned and dried in advance), the workpiece (i.e. V-groove substrate or cover plate) is washed together with the clamp in the shower basin by deionized water, then the clamp is loosened to clamp the V-groove substrate or cover plate (i.e. the air bags of the upper clamp plate and the lower clamp plate are all deflated), the V-groove substrate or cover plate is sucked out from the clamp by vacuum adsorption, and then is sent to the oven at 110°C for 25-35 min. At the same time, the right transfer assembly and the belt conveyor continue to complete the second isopropyl alcohol cleaning operation of step 5), and then are sent to the oven at 110°C for 25-35 min in the same way.

[0044] The embodiment has two transfer stations, which can greatly improve the work efficiency. In practice, more transfer stations can be set according to the needs. In operation, the cleaning cups are fixed counterclockwise according to the cleaning sequence, and then the cleaning operation is performed counterclockwise. Each cleaning liquid is used optimally twice, and then the new corresponding cleaning liquid is replaced. Of course, more times can be used according to the actual situation.

Claims

1. A method for cleaning V-grooves / cover plates of fiber optic arrays, characterized in that, This is achieved through the following steps: Step 1) Prepare the cleaning equipment, which includes a fixture, multiple cleaning cups, and an ultrasonic cleaning box. The fixture is placed in the cleaning cups, and the cleaning cups are fixed in the ultrasonic cleaning box. First, clean and dry the cleaning equipment, and then load the V-groove substrate or cover plate to be cleaned into the fixture. Step 2) Place the fixture containing the V-groove substrate or cover plate into a cleaning cup containing degreasing water. The amount of degreasing water should just submerge the V-groove substrate or cover plate. Turn on ultrasonic vibration and wash for 9-15 minutes. During the cleaning process, the clamping position of the V-groove substrate or cover plate should be changed. The timing of the change is after 2 / 3 of the vibration and washing time in this step. Step 3) Place the fixture containing the V-groove substrate or cover plate into one of the cleaning cups containing alcohol with a volume concentration of 75% or higher. The amount of alcohol should just submerge the V-groove substrate or cover plate. Turn on the ultrasonic vibration and wash for 9-15 minutes. Step 4) Place the fixture containing the V-groove substrate or cover plate into another cleaning cup containing alcohol with a volume concentration of 75% or higher. The amount of alcohol should just submerge the V-groove substrate or cover plate. Turn on ultrasonic vibration and wash for 9 to 15 minutes. During the cleaning process, the clamping position of the V-groove substrate or cover plate should be changed. The timing of the change is after 2 / 3 of the vibration and washing time in this step. Step 5) Place the fixture containing the V-groove substrate or cover plate into one of the cleaning cups containing 4%-6% isopropanol by volume. The amount of isopropanol should just submerge the V-groove substrate or cover plate. Turn on ultrasonic washing for 9-15 minutes. Step 6) Place the fixture containing the V-groove substrate or cover plate into another cleaning cup containing 4%-6% isopropanol by volume. The amount of isopropanol should just submerge the V-groove substrate or cover plate. Turn on ultrasonic washing for 9-15 minutes. During the washing process, the clamping position of the V-groove substrate or cover plate should be changed. The timing of the change is after 2 / 3 of the washing time in this step. Step 7) Remove the cleaned fixture containing the V-groove substrate or cover plate, loosen the fixture from the V-groove substrate or cover plate, and use negative pressure adsorption to extract the V-groove substrate or cover plate from the fixture. Then, put it into an oven at 110℃ and dry for 25~35 minutes.

2. The fiber optic array V-groove / cover plate cleaning method according to claim 1, characterized in that, The aforementioned clamp includes an upper clamping plate, a lower clamping plate, a lifting assembly, and an inflation assembly. Multiple clamping holes are provided on both the upper and lower clamping plates, with each clamping hole on the upper plate corresponding vertically to the one on the lower plate. At least two airbags are fixedly connected to the inner wall of each clamping hole. The size of the clamping hole is larger than the V-groove substrate or cover plate being clamped. Inflation assemblies are provided on both the upper and lower clamping plates. The inflation assemblies on the upper plate are ultimately connected to all the airbags on the upper clamping plate, and the inflation assemblies on the lower clamping plate are ultimately connected to all the airbags on the lower clamping plate. At least two lifting assemblies are also fixedly connected between the upper and lower clamping plates, and their synchronous movement causes the upper and lower clamping plates to move closer or further apart. A lifting component is fixedly connected to the center of the top of the upper clamping plate, and a support leg is fixedly connected to the bottom of the lower clamping plate.

3. The fiber optic array V-groove / cover plate cleaning method according to claim 1 or 2, characterized in that, The aforementioned cleaning equipment also includes a support base, belt conveyors, and a transfer assembly. The top of the support base rotatably engages with an ultrasonic vibrating cleaning box. A rotating shaft is fixedly connected to the bottom of the ultrasonic vibrating cleaning box, extending downwards from the center of the support base and then fixedly connected to the output shaft of a first servo motor at its bottom. A first automatic lifting column is fixedly connected to the center of the bottom of the ultrasonic vibrating cleaning box. Five support rods are fixedly connected to the top of the first automatic lifting column. An ultrasonic vibrating rod is fixedly connected to each support rod, corresponding to the position of each cleaning cup. Under the action of the first automatic lifting column, the ultrasonic vibrating rod extends into or exits from the corresponding cleaning cup. At least two belt conveyors are fixedly mounted on the support base. Above each belt conveyor is a transfer assembly for transferring the clamps between cleaning cups or between the cleaning cups and the belt conveyors.

4. The fiber optic array V-groove / cover plate cleaning method according to claim 3, characterized in that, The transfer assembly includes a fixed beam, horizontal slide rails, a slider, a lead screw, a second servo motor, a second automatic lifting column, and a lifting component that cooperates with the clamping and lifting components. The fixed beam is fixed to the frame of the corresponding belt conveyor, with one end of the fixed beam located on the tail section of the corresponding conveyor and the other end located on one of the cleaning cups. A horizontal slide rail is fixedly connected to each side of the fixed beam in the width direction, and the extension direction of the horizontal slide rails is consistent with the extension direction of the fixed beam. A lead screw is provided between the two horizontal slide rails, and the two ends of the lead screw are rotatably connected to two bearing seats fixed at corresponding positions on the fixed beam. One end of the lead screw extends from the corresponding bearing seat and is fixedly connected to the output shaft of the second servo motor. The slider has a threaded hole for the lead screw to pass through, and the slider is threadedly engaged with the lead screw. The two sides of the slider are embedded in the two horizontal slide rails, and the slider moves linearly along the horizontal slide rails. A second automatic lifting column is fixedly connected to the bottom of the slider, and a lifting component is fixedly connected to the bottom of the second automatic lifting column.

5. The fiber optic array V-groove / cover plate cleaning method according to claim 4, characterized in that, Three liquid storage tanks are fixedly connected to the support base to temporarily store the three liquids: degreasing water, alcohol, and isopropyl alcohol, respectively. A pressure pump is connected to one side of the bottom of each liquid storage tank through a pipe. Each pressure pump outlet is connected to a liquid outlet pipe. The other end of each liquid outlet pipe is connected to a liquid drain tap. All liquid drain taps are located on one of the cleaning cups.

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