28results about How to "Save labor hours" patented technology

The invention relates to the technical field of robot automatic spraying, and particularly discloses a shielding clamp for aircraft engine blade robot automatic spraying and a spraying method thereof.The shielding clamp comprises a first mold and a second mold, and a plurality of blade containing grooves capable of containing blades are formed in the first mold and the second mold; the top of the first mold and the top of the second mold are rotationally connected through a rotating shaft, the blades are arranged in the blade containing grooves, and the second mold is locked and connected to the first mold through a lock catch assembly. The first mold and the second mold are arranged to jointly form the shielding clamp, the multiple blade containing grooves are formed in the shielding clamp, multiple sets of blades can be clamped at a time, meanwhile, the lock catch assembly is arranged at the bottom of the shielding clamp, and therefore opening, closing and clamping of the shielding clamp are convenient; according to the invention, the disadvantage caused by shielding spraying by manually pasting an adhesive tape is solved, the consistency of a spraying area is improved, and the spraying quality and spraying efficiency of the engine blade are obviously improved.

The utility model discloses a paper tube continuous drying production line which comprises a drying oven, a drying oven support, a paper tube conveying mechanism and a material receiving basket, the drying oven is installed on the drying oven support, a feeding door and a discharging door are oppositely formed in the two ends of the drying oven, and a feeding section, a drying section and a discharging section are continuously arranged between the feeding door and the discharging door. The drying section is provided with a plurality of hot air dryers; the paper tube conveying mechanism comprises a rectangular conveying frame, a paper tube conveying belt and conveying rollers, the conveying frame is installed in the drying oven, the two ends of the conveying frame penetrate through the feeding door and the discharging door respectively and then are fixed to the drying oven support, the multiple conveying rollers are installed in the conveying frame in parallel, and the paper tube conveying belt is fixed to the drying oven support. The paper tube conveying belt is arranged on the conveying roller in a sleeving mode, and paper tube placing positions are evenly arranged on the paper tube conveying belt. By means of the mode, assembly line type baking can be achieved, combination with a robot is facilitated, and automation of the baking procedure is achieved.

The invention relates to a square material rapid center line marking tool which comprises a structure body, a marking conical nail, a laser emitting device, a bearing and a center target, the marking conical nail penetrating up and down is fixed to the middle of the columnar structure body, the marking conical nail is located on the center line of the columnar structure body, and the laser emitting device is arranged on the laser emitting device. The two bearings are symmetrically arranged on the center line of the bottom of the structure body and are symmetrically arranged relative to the marking conical nail. The laser emitting device is coaxially arranged at the top of the marking-off conical nail, the laser emitting device is rotatably located on the marking-off conical nail, the center target is arranged in the center of the end of the square material, and a laser beam emitted by the laser emitting device is aligned with the center target spot position of the center target; the invention further relates to a method for rapidly drawing the center line of the square material. By means of the tool and the method, the center line of the square material can be found rapidly and accurately, high efficiency and attractiveness can be achieved, the requirement for the site is low, a large amount of labor hours are saved, and the production efficiency is improved.

The invention discloses a steel casting pouring protection device, which belongs to the technical field of steel ladle pouring equipment and comprises a steel ladle with a pouring hole in the bottom. The moving plate is provided with a water outlet pipe and is connected with a driving assembly for driving the moving plate to move between a first position and a second position; at the first position, the movable plate blocks the pouring hole; at the second position, the pouring hole is communicated with the water outlet pipe, and the lower end of the water outlet pipe is positioned right above the pouring cup; the first protection plate is fixed on the movable plate; the first protection plate separates the moving plate and the driving assembly from the lower end of the water outlet pipe and the sprue cup; the argon protection ring is positioned between the first protection plate and the pouring cup; a plurality of gas outlet holes and a gas inlet pipeline are arranged on the argon protection ring; the first protection plate not only can block the moving plate and the driving assembly from the lower end of the water outlet pipe and the pouring cup to prevent molten steel from influencing the driving assembly, but also can be matched with an argon protection ring to improve the sealing performance during molten steel pouring, and the molten steel is prevented from being oxidized when making contact with air.

The utility model discloses an automobile interior trim heel line automatic waste removing tool which comprises a machine body, two first fixing frames are symmetrically and fixedly arranged at the upper end of the machine body, a second fixing frame is fixedly arranged on one side of the upper end of each first fixing frame, and a fixing plate is fixedly arranged on one side of each second fixing frame. A plurality of mounting frames are symmetrically and fixedly arranged on one side of the second fixing frame, and upper baffles are fixedly arranged at the lower ends of the mounting frames. By means of the structure, the motor is arranged on one side of the fixing plate, the winding roller is arranged on one side of the motor, the feeding belt is installed on the side wall of the winding roller, the upper baffle is arranged at the upper end of the first fixing frame, the waste shaking rope is arranged in the machine body and installed on the side wall of the third waste shaking shaft, the second waste shaking shaft is fixedly arranged on one side of the third waste shaking shaft, and the first waste shaking shaft is fixedly arranged on one side of the second waste shaking shaft. According to the device, waste materials are removed through shaking, so that the labor hour is reduced, and the production efficiency is improved.

The utility model relates to an automatic detection device which comprises a supporting assembly, an upper detection assembly, a lower detection assembly and a touch screen, and the upper detection assembly and the lower detection assembly detect different point positions at the same time. The lower detection assembly comprises a detection mounting plate, a positioning rod with a conical end part for positioning, a plurality of cylindrical supporting columns for supporting, a plurality of retaining ring type incoming material sensor mounting seats arranged on the supporting columns, a plurality of metal proximity switches arranged on the incoming material sensor mounting seats, and a plurality of sensor mounting bases; the proximity switch fixing pieces are arranged on the sensor mounting base, the metal proximity switches are fixed on the proximity switch fixing pieces, and the polish rod metal proximity switches are arranged on the sensor mounting base. The metal proximity switch and the polish rod metal proximity switch are electrically connected with the touch screen. The device is simple in structure, low in cost and high in detection efficiency, and saves a lot of labor hours.

The invention discloses a maintenance method, system and equipment for an aviation lubricating oil cooler and a medium, and relates to the technical field of aviation maintenance, and the method comprises the steps: obtaining the lubricating oil temperature of a fleet through collecting QAR data of a fleet aircraft after a ground engine is started and before an APU is turned off; generating an alarm threshold according to the fleet lubricating oil temperature, and obtaining a plurality of alarm temperature intervals; each alarm temperature interval corresponds to the number of normal continuous days and the pollution degree of the lubricating oil cooler; qAR data of a to-be-monitored aircraft are obtained, and multi-day lubricating oil temperature is obtained; and generating maintenance measures of the to-be-monitored aircraft according to the multi-day lubricating oil temperature, the alarm temperature interval and the fault code. By adopting the embodiment of the invention, APU shutdown events caused by smudginess of the lubricating oil cooler can be reduced, the original'cleaning after shutdown 'is converted into'cleaning before shutdown', a large amount of labor hours are saved, and the riding experience of customers is improved.

This utility model relates to a PVC board bending mold device, including an inner rolling mold component and an outer rolling mold component. Its advantages are that, through the coordinated operation of the inner and outer rolling mold components, bending of high-temperature PVC boards can be achieved. Using this mold device reduces manual labor time in the processing of high-temperature PVC boards, as the PVC board is pressed directly by the weight of the mold itself, eliminating the need for manual shaping and resulting in a more aesthetically pleasing shape. Furthermore, since the PVC board reaches a high temperature after heating, directly pressing it with the mold reduces the risk of burns to operators, improving the safety of the processing operation.

The invention discloses a method and a system for automatically measuring postures of formed segments in a tunnel without moving stations. The method comprises the following steps: S1, configuring specified parameters of the formed segments; s2, monitoring the state of a cutter head by adopting a total station for mobile station guiding; s3, when the shield tunneling machine stops tunneling, automatically measuring a plurality of target prisms fixed on the duct piece, and setting a station for orientation; s4, establishing a mathematical space model according to historical data, and calculating coordinates of key positioning points of the section of the segment to be measured; s5, measuring coordinates of key positioning points of the section of the duct piece in a prism-free manner; s6, cleaning the coordinate data of the section of the measured segment, and removing abnormal data; s7, a least square method is used for fitting a space circle algorithm, the coordinates of the circle center of the inner diameter of the segment are calculated, the deviation with the design axis is calculated, and automatic measurement of the posture of the shield forming segment is achieved; s8, performing accurate control and adjustment on the posture of the duct piece; and S9, monitoring the posture of the duct piece. According to the invention, all-weather segment attitude monitoring can be realized.

The application provides an outer rotor motor, which comprises a rotor assembly, a rotor shell, a stator assembly and a bearing. The end of the rotor assembly is connected with the axial end of the rotor shell, so that the rotor assembly can rotate integrally with the rotor shell. The bearing is located at the inner periphery of the axial end of the rotor shell to support the rotor shell. The axial other end of the rotor shell extends to the radial outer periphery of at least part of the structure of the stator assembly. The rotor shell can be driven to rotate by the stator assembly, so as to drive the rotor assembly to rotate integrally. According to the application, the arrangement of one bearing can be effectively reduced. Compared with the conventional outer rotor motor structure which needs to be provided with two bearings, or the scheme of one long bearing, the cost of one small but high-priced bearing is effectively saved, so that the cost of the outer rotor motor is reduced, and the noise and vibration are also reduced.

The invention provides a rod and pipe fitting linear part positioning and assembling system which comprises a three-dimensional warehouse, an automatic positioning and assembling work module, operation tool boxes and a control system, the automatic positioning and assembling work module is installed on the front side of the three-dimensional warehouse, and the operation tool boxes are placed on the left side and the right side of the automatic positioning and assembling work module. The tool has the beneficial effects that high-precision and high-efficiency positioning and assembling of linear products such as rods and pipe fittings of the same specification and multiple batches and base connectors can be achieved. The automatic positioning precision Dx is superior to 0.03 mm, the automatic positioning precision Dy is superior to 0.03 mm and the automatic positioning precision Dz is superior to 0.03 mm within the range of 2500 mm, and the automatic positioning precision Dx is superior to 0.02 mm, the automatic positioning precision Dy is superior to 0.02 mm and the automatic positioning precision Dz is superior to 0.02 mm within the range of 1000 mm through the locking positioning device along with the reduction of the distance between the three sets of sliding tables.

The invention relates to a pin shaft positioning and assembling device for a scraper reclaimer chain. The pin shaft positioning and assembling device comprises a mounting frame, a positioning unit, a guide wheel groove and a slide way. The bottom end of the installation frame is connected with a bottom plate parallel to the ground, the guide wheel groove and the sliding way are both arranged on the top face of the bottom plate and located in the installation frame, the guide wheel groove and the sliding way extend in the first direction of the bottom plate, the guide wheel groove and the sliding way are sequentially arranged in the second direction of the bottom plate, and a chain piece to be installed is placed in the sliding way. The positioning unit is located in the mounting frame, the positioning unit is connected with the first end of the mounting frame, the positioning unit can move relative to the mounting frame so as to adjust the height of the mounting unit relative to the bottom plate, a to-be-mounted chain wheel is placed in the guide wheel groove and located on the lower portion of the positioning unit, and the bottom end of the positioning unit is used for covering the peripheral wall of the to-be-mounted chain wheel; the position of the chain wheel to be mounted is fixed; compared with manual installation of the chain of the scraper reclaimer, the installation quality and the installation efficiency of the chain are improved.

This invention relates to the field of tire simulation design technology, and more particularly to a method, system, storage medium, and software product for improving the accuracy of tire tread performance simulation. The invention constructs a pressure mesh by reading measured data from a pressure sensor array, sets a pressure threshold to extract contour nodes, and connects and traces them to form a closed contour. The outer contour of the ground contact mark is obtained by combining area threshold filtering and convex hull calculation. Further, the ground contact width (TAW) of the tread pattern unfolded diagram is read, the maximum width of the outer contour (B) is calculated, and the scaling factor k = TAW / B is obtained. The outer contour is mapped to the unfolded diagram to obtain a mapped contour, which is used to limit the extraction of tread parameters within the ground contact area and input into noise, handling, and / or wear simulation modules. This solution achieves end-to-end automation, reduces manual drawing errors and time, and improves geometric input consistency and simulation prediction accuracy.

The invention discloses a touch panel double faced adhesive tape multi-time continuous press-fit system which comprises a workbench, a carrier, a material moving mechanism and a press-fit mechanism, an assembly line is arranged on one side of the workbench, the carrier is installed on the table top of the workbench, a plurality of press-fit positioning jigs are evenly distributed on the carrier in a straight line, and the press-fit positioning jigs are arranged on the workbench. The first of the plurality of press-fit positioning jigs is a loading jig; the pressing mechanism and the material moving mechanism are oppositely arranged on the two sides of the carrier, the pressing mechanism comprises a plurality of synchronous pressing air cylinders, and all the synchronous pressing air cylinders are installed over pressing positioning jigs outside the loading jigs in parallel. The material moving mechanism comprises a plurality of vacuum suction claws, a suction claw seat and a suction claw seat driving structure, the number of the vacuum suction claws is the same as that of the press-fit positioning jigs, and the vacuum suction claws are installed on the suction claw seat in parallel. By means of the mode, the pressing efficiency can be effectively improved, and the labor hour is reduced.

The invention discloses a dynamic reactor device for solid-liquid and gas-liquid non-uniformity, which comprises a premixing device, a feeding device and a reaction device, the reaction device comprises a solid homogeneous batching unit, a liquid batching unit, a weighing feeding pipeline, a pre-heat exchanger and a reaction unit, and the reactor unit can be one section, the invention provides the continuous reaction device which is safe in reaction process, simple to operate, high in product yield and suitable for industrial production, and the continuous reaction device can be used for realizing efficient mixing of materials and improving elements such as mass transfer and heat transfer in chemical reaction, so that the reaction rate can be obviously increased, and the production cost can be reduced. And the continuous production of the bis (chlorosulfonyl) imide is realized.

The utility model relates to a reinforcing steel bar self-locking connecting device which comprises a connecting cylinder, anti-falling assemblies are arranged at the two ends of the connecting cylinder, a self-locking assembly is arranged in the connecting cylinder, the self-locking assembly comprises a plurality of arc-shaped pieces and a plurality of elastic silica gel, and the arc-shaped pieces and the elastic silica gel are arranged in a staggered mode and connected to form a self-locking lantern ring. And a plurality of springs are fixedly connected between the outer wall surface of the self-locking lantern ring and the inner wall surface of the connecting cylinder, so that self-locking between the steel bars can be realized, the stability of steel bar connection is enhanced, the production efficiency is improved, and the purpose of effectively ensuring the steel bar connection quality is achieved.

The application relates to the technical field of motor control, and particularly discloses an automatic calibration method for a full-speed-domain lookup table of a permanent magnet synchronous motor, which comprises the following steps: MTPA automatic calibration, d-axis limit current search, MTPA automatic calibration-based d-axis limit current search, and maximum q-axis current boundary line-based acquisition of a field-weakening region current lookup table. In the method, the MTPA and the field-weakening region calibration are both based on rotor flux orientation current loop control, without additional voltage control and lookup table conversion, so that the lookup table calibration for full-speed-domain control of the motor is efficiently realized, and meanwhile, the d-axis limit current search fully considers the voltage limit ellipse under a higher rotating speed, thereby achieving the efficiency that cannot be achieved by traditional offline calibration and avoiding the possible instability problem of the existing calibration technology.

The utility model discloses a kind of cloth laying machine pre-flattening low tension unwinding device, including rack, feeding seat, unwinding mechanism, front display conveyor belt, loading guide mechanism, tension adjusting roller and steering connecting roller, the feeding seat is installed in the rack front, the feeding seat is equipped with unwinding table, the unwinding mechanism includes two unwinding frames, the inner side of two unwinding frames is oppositely arranged two cloth roll chuck, one is short-stroke chuck, another is long-stroke chuck, the front display conveyor belt is installed in the rack top end, the loading guide mechanism includes guide plate and guide cylinder, the guide plate one end rotatably installed in the rear end below of front display conveyor belt, the guide cylinder one end connects the back of guide plate, the other end is connected with the rack, the outside of guide plate is installed the tension adjusting roller, the steering connecting roller is installed in the rear part of rack. By the above mode, the utility model can save manual labor time when laying cloth, while improving the laying quality.

The invention discloses a whole vehicle wind resistance simulation automatic analysis method and system. The method comprises the following steps: establishing a three-dimensional geometric model; importing the geometric model into pre-processing software to carry out PID (Proportion Integration Differentiation) division; surface grid drawing is carried out on the model subjected to PID division; importing a surface grid file in the pretreatment software into simulation analysis software for setting boundary conditions; uploading a model file and a program control file output by the simulation analysis software to a computing platform; the computing platform automatically computes according to the program control file and outputs a post-processing result file; the output post-processing result file is analyzed; and performing iterative optimization according to an analysis result. According to the method, various simulation results are directly output on the calculation platform without downloading calculation model results or opening the models through software for operation, so that the whole vehicle wind resistance analysis process is greatly simplified, the analysis efficiency is improved, and the labor cost is reduced.

A kind of inflatable evacuation platform system of quick deployment, including one or more mutual series evacuation platform, the evacuation platform includes main frame, inflatable support air bag, drive cylinder and inflation device;Slide rail is arranged between the main frame and the ground of tunnel, the inflatable support air bag is arranged on the main frame, the inflatable support air bag includes several section air bags, each section air bag is connected by air passage, one end of the inflatable support air bag is fixedly connected with the side of the main frame, support partition is arranged between each section air bag;The drive cylinder is fixedly connected with the main frame, the drive rod of the drive cylinder is fixedly connected with the side wall of tunnel;The inflatable support air bag is connected with the inflation device.

This utility model discloses an automated assembly device for an active air intake grille, including a rotary table, tooling, a first vibratory feeder, a second vibratory feeder, a first robotic arm, a screw feeder, a second robotic arm, and a first detection device. The first vibratory feeder is used to convey a first pressure plate; the second vibratory feeder is used to convey a second pressure plate; the first robotic arm is located on one side of the rotary table and between the first and second vibratory feeders, and is used to place the first or second pressure plate onto the workpiece; the second robotic arm is located on one side of the rotary table and is used to connect the first pressure plate and the workpiece with screws, or to connect the second pressure plate and the workpiece with screws; the first detection device is located on one side of the rotary table and is used to detect the blade rotation angle of the workpiece; wherein, the rotary table drives the tooling to rotate sequentially to positions corresponding to the first robotic arm, the second robotic arm, and the first detection device. This improves the automation level of assembly and inspection, and saves manual labor time.

The utility model discloses a concrete wall column template positioning device, which relates to the technical field of building construction, and comprises a base, a foundation is arranged at the center axis of the bottom of the base, the top of the base is fixedly connected with a plurality of template positioning pieces, the inner walls of the template positioning pieces are fixedly connected with a plurality of steel nail fixing pieces, and the steel nail fixing pieces are fixedly connected with the steel nail fixing pieces. The steel nail fixing piece penetrates through the foundation to the inner wall, and the formwork fixing piece is arranged, so that the purposes that installation is simple, connection points are arranged at all joints simply and easily, and manual operation of tools is not needed are achieved.

The utility model discloses an automatic water replenishing device for ALD (Atomic Layer Deposition) equipment, which comprises a PLC (Programmable Logic Controller), a process water bottle and a water storage bottle, the top of the process water bottle is provided with a middle water inlet interface, an equipment water replenishing interface, a first air inlet interface and a socket provided with a monitor; the top of the water storage bottle is provided with a middle water supplementing connector, a water inlet connector, a second air inlet connector and an insertion opening provided with a liquid level monitor. An equipment water supplementing pipeline is installed on the equipment water supplementing connector, the first air inlet connector is externally connected with high-pressure nitrogen through a high-pressure air pipe, the middle water inlet connector and the middle water supplementing connector are connected in a sealed mode through a siphon pipeline, the water inlet connector is provided with a water inlet pipeline, and the second air inlet connector is externally connected with high-pressure nitrogen through a high-pressure air pipe. All the pipelines are provided with corresponding valves, and all the valves and the liquid level monitor are in signal connection with the PLC. By means of the mode, automatic water replenishing of the ALD equipment can be achieved, production efficiency is improved, and production pauses are reduced.

The utility model belongs to the technical field of butt joint of end covers, and discloses an ultra-high voltage switchgear large-size end cover assembly accurate positioning device which comprises a fixed platform, and a first sliding rail and a second sliding rail which are arranged perpendicular to each other are arranged on the fixed platform. A middle fixed bracket is fixed to the middle of the first sliding rail, and movable brackets sliding on the first sliding rail are symmetrically arranged on the two sides of the middle fixed bracket. A movable platform is connected to the second sliding rail in a sliding mode, a bottom bracket moving in the vertical direction is arranged on the movable platform, a semicircular sliding way allowing the movable tray to rotate is arranged in the bottom bracket, and a driving gear and auxiliary gears located on the two sides of the driving gear are rotationally installed in the bottom bracket. Gear teeth meshed with the driving gear and the auxiliary gear are arranged at the bottom of the movable tray; and a rotating handle for rotating the driving gear to drive the movable tray to rotate is arranged on the bottom bracket. The device can reduce the butt joint difficulty of large end covers, is safe and reliable, saves working hours, and is convenient for personnel to operate.

The utility model relates to the technical field of oil-gas separator sealing rings, and discloses an anti-static sealing ring for an oil-gas separator, which comprises a bottom cover, a filter element main body is mounted on the upper side of the bottom cover, a flange is mounted on the upper side of the filter element main body, and a sealing ring is sleeved on the outer side of the top of the flange. Two groups of conductive nails are arranged between the flange and the sealing ring; a sealing ring is arranged on the flange, a U-shaped groove is formed in the inner side of the sealing ring, the U-shaped groove is matched with the flange, an arc-shaped protruding part is arranged on the sealing ring, and the arc-shaped protruding part corresponds to the conductive nail. According to the anti-static sealing ring for the oil-gas separator, the sealing ring is of a U-shaped structural design and can be clamped to the outer side of a flange, so that turning grooves are not needed to be formed in the upper cover and the lower cover of an oil-gas barrel, the labor hour of maintenance is saved, residues of an asbestos pad do not need to be cleaned, and the problems that manual cleaning with tools is needed, time is consumed, and the working efficiency is high are solved. And a groove needs to be turned on the end cover, so that the sealing ring is broken.

The invention relates to the technical field of lighting design, in particular to an ACCESS database-based lighting system design method, which comprises the following steps of: creating a block file with attributes in CAD (Computer Aided Design) drawing software according to the demand of a ship user; when the lighting system is designed, a predefined block file with attributes is called, and lamps are arranged at corresponding positions of a drawing by adopting an insertion command; exporting the designed drawing file as a txt format file, importing the exported txt file into an ACCESS database, and establishing a data link; in the ACCESS database, generating a corresponding statistical report; in the design process, when the number or arrangement of the lamps in the drawing is changed, a designer updates the drawing in the CAD, and the ACCESS database automatically and synchronously updates data and reflects the data in a statistical report in real time. According to the method, the labor hour is reduced, meanwhile, the design and statistics efficiency is improved, and the accuracy and consistency of data are ensured.

The invention discloses yardage roll frame throwing equipment which comprises a yardage roll conveying line used for conveying yardage rolls and is characterized in that the end of the yardage roll conveying line abuts against a turnover belt line, and a frame throwing assembly is further placed on one side of the turnover belt line and comprises a liftable frame throwing load table, a lifting frame throwing device and a lifting device. The turnover belt line can turn over towards one side of the throwing frame load table so as to turn over the cloth roll onto the throwing frame load table; the material frame is positioned below the frame throwing loading platform; and the uniform distribution mechanism is connected with the lower end of the material frame and can drive the material frame to do reciprocating motion in the axial direction perpendicular to the cloth roll in the material frame. In this way, according to the scheme, the cloth roll is put into the material frame in a full-automatic mode, labor hours are reduced, and damage to the cloth roll is avoided; and the cloth rolls can be evenly distributed in the material frames, more cloth rolls can be placed in each material frame, and the storage capacity is higher.

The present invention relates to a method for coupling an optical fiber adapter and an optical module, comprising the following steps: sleeve a welding sleeve on the optical fiber adapter so that the bottom of the welding sleeve sticks to the end face of the optical module housing; adjust the position of the optical fiber adapter so that the optical power reaches the maximum, weld and fix the optical fiber adapter and the welding sleeve to obtain an assembly; perform a flattening operation, then lift the assembly by a preset distance L1, horizontally adjust the position of the assembly so that the optical power reaches the maximum; lower the assembly by a preset distance L2, L2>L1, monitor whether the change value of the optical power before and after the assembly is lowered is within a set range, if so, weld and fix the welding sleeve to the optical module housing; if not, lift the assembly by L2, and then re-perform the flattening-lifting-lowering operation on the assembly. The present invention predicts the situation of optical power drop during the coupling process and eliminates this defect, thereby avoiding the operation of reworking the product due to the optical power drop, effectively improving the product yield, and reducing the cost of the product.