Aerospace hydraulic piston pump disassembly and cleaning station and process method thereof

Abstract

The present application relates to the field of disassembly and cleaning work station, specifically to an aviation hydraulic piston pump disassembly and cleaning work station and process method thereof, the work station comprises a terminal device, and further comprises: an RFID reader / writer, a jacking motor, a double-shaft positioner, a single-shaft positioner, an electric screwing shaft, a servo tensioning motor, an extendable oil receiving disc, a tooling tool, an auxiliary disassembly small component, an ultrasonic cleaner, a manual operation table, a gas-liquid booster cylinder press, a bull's eye steering table, a manual press, a buffer channel, and the hydraulic piston pump disassembly and cleaning work station re-designs all production tooling tools according to an optimal process flow, integrates them into various repair work stations, and introduces positioners, transfer motors and other automation / semi-automation technologies, thereby avoiding safety risks, reducing labor intensity, reducing non-value-added time such as tooling tool searching, preparation and use, improving work efficiency, reducing unnecessary time waste, and providing a reference for solving similar technical problems.

Description

Technical Field

[0001] This invention relates to the field of disassembly and cleaning workstations, specifically to an aviation hydraulic plunger pump disassembly and cleaning workstation and its process method. Background Technology

[0002] Hydraulic plunger pumps are the "heart" of aircraft hydraulic systems, directly impacting system operation and characterized by high repair difficulty and risk. The repair process mainly includes basic steps such as disassembly, cleaning, fault inspection, repair, assembly, and testing. Disassembly is the first step in hydraulic plunger pump repair, and its quality and timeliness significantly influence subsequent steps. Hydraulic plunger pumps are heavy, making handling and turning inconvenient, and manual handling poses safety risks. Some steps during disassembly are difficult, resulting in high labor intensity. Non-standard disassembly procedures can easily lead to secondary damage. Furthermore, the necessary tools are not located at the disassembly station but are stored in individual tool cabinets, with tools from different processes mixed together. Tools are manually retrieved and brought to the station for repair during the process, only to be returned to the cabinet afterward, resulting in significant time waste. Therefore, a hydraulic plunger pump disassembly and cleaning workstation and process method based on an optimal process flow were designed. Summary of the Invention

[0003] To address the aforementioned problems, this invention proposes a disassembly and cleaning workstation for aviation hydraulic plunger pumps and its process method.

[0004] An aircraft hydraulic plunger pump disassembly and cleaning workstation includes a terminal device for receiving tasks, and further includes:

[0005] RFID readers are used to check whether the correct products need to be processed at each workstation according to the task requirements.

[0006] The lifting motor lifts the product that needs to be disassembled.

[0007] Dual-axis and single-axis positioners automatically adjust the product position according to the work steps and tasks.

[0008] Electric tightening shaft, assisting manual disassembly;

[0009] A servo tension motor assists in manually placing the disassembled end caps onto the clamping fixture of the single-axis positioner 6.

[0010] Telescopic oil receiving tray, used to collect oil from the product during decomposition;

[0011] Tooling and fixtures to aid in the disassembly of small parts;

[0012] Ultrasonic cleaning machine, used for preliminary cleaning of disassembled parts;

[0013] Manual control panel, manual disassembly of small parts;

[0014] Pneumatic-hydraulic booster cylinder press, assisting manual disassembly of the main shaft bearing;

[0015] The bullseye steering wheel is used to transfer the disassembled cleaning frame to the parts box.

[0016] Manual press, assisting in the disassembly of the main shaft bearing;

[0017] The buffer channel waits for the AGV to put the disassembled parts into the material box before transporting them into the warehouse.

[0018] The lifting motor lifts the product to be disassembled and installs it onto the clamping fixture of the dual-axis positioner.

[0019] The dual-axis positioner automatically adjusts the product position according to the work steps and uses an electric tightening shaft to assist manual disassembly.

[0020] The servo tension / compression motor assists manual labor in placing the disassembled end caps onto the clamping fixture of the single-axis positioner, and automatically adjusts the product position according to the work step.

[0021] The aforementioned tooling assists in disassembly, and the disassembled small parts are manually disassembled on a manual operating table, with the aid of a manual press.

[0022] A process for disassembling and cleaning a hydraulic piston pump for aviation, the specific steps of which are as follows:

[0023] S001. According to the task issued by the MES system: decompose the task to receive the cleaning workstation terminal equipment and receive the hydraulic piston pump product transferred by AGV.

[0024] S002. The pallet enters the conveyor line; personnel confirm via button:

[0025] The lifting motor rises, and the material is fed into the fixed position of the dual-axis positioner; the operator adjusts the fixed fixture to lock the hydraulic piston pump with the dual-axis positioner; the operator presses a button to confirm, and the lifting motor descends.

[0026] The telescopic oil receiving tray extends to cover the conveyor line and lifting motor below the positioner;

[0027] S003. Remove fuses: Use diagonal pliers or needle-nose pliers in the tooling to cut / pull, and use the dual-axis positioner 4 to rotate to the specified angle to easily remove fuses from various parts of the mounting surface;

[0028] S004, Tilting: The dual-axis positioner rotates X° to adjust the workpiece to a suitable posture, removes the matching components, and places them in the material tray of the buffer channel;

[0029] S005. Loosen the plugs: Use the mechanical wrench in the tooling to loosen the high-pressure nozzle connector or accessory connector, loosen the oil inlet pipe plug, and use the extended ratchet wrench in the tooling to loosen the remaining plugs.

[0030] S006. Disassembling the plugs: Use the electromagnet in the tooling to clamp the electromagnet housing, then remove the tooling to loosen the electromagnet locking nut; use the mechanical ratchet wrench in the tooling to loosen the two plugs near the electromagnet, and use the extended ratchet wrench in the tooling to loosen the remaining plugs.

[0031] S007. Loosen the pressure regulating valve sleeve: First, use the ratchet wrench in the tooling set with a 17mm sleeve and a 19mm open-end wrench to fix the pressure regulating sleeve, and manually loosen the pressure regulating valve adjusting nut; then use the ratchet wrench with a 19mm sleeve to loosen the pressure regulating valve sleeve.

[0032] S008. Disassemble the drive shaft assembly:

[0033] Replace the drawing and docking fixture in the tooling with the servo drawing and pressing motor; remove the drive shaft from the tooling and disassemble the fixture, rotate to open the clamping fingers, and install them on the upper end of the drive shaft;

[0034] Rotate to clamp the fingers, deforming the locking ring; button controls the servo tension motor to descend, manually control its docking with the tooling; button manually controls the pulling action, after pulling is completed, reset; press the pin to lock, push open the electric cylinder;

[0035] S009. Using an electric tightening shaft with a 14mm small fly spool, rotate counterclockwise to remove 18 M8 hex bolts; using a cordless electric gun with a 5.5mm small fly spool bit, remove the left-side plug of the end cap.

[0036] S010, Pull-out removal of the tail cap assembly:

[0037] Open the oil inlet plug and drain the oil; remove the tail cap from the tooling and disassemble the tooling, rotate to open the clamping fingers, and install them on the upper end of the drive shaft.

[0038] Rotate to clamp the fingers, fixing the tooling and tail cap together; button controls the servo tension motor to descend, and manual control allows it to dock with the tooling.

[0039] The button manually controls the pulling action. After the pulling is complete, it resets. Manually remove the spring, support, and spring seat from the housing.

[0040] S011. Tail cover assembly transfer and disassembly clamping:

[0041] After the tail cap assembly is picked up, the servo tension motor is manually moved to the single-axis positioner. Note that the end cap may interfere with the fixing claw.

[0042] The button controls the pneumatic positioning pin to fix the position of the servo tension motor; the button also controls the servo tension motor to descend, allowing the tail cap assembly to enter the single-axis clamp.

[0043] The electric cylinder is moved to the safe position and reset; the tail cover pulling fixture and docking fixture are removed from the tooling; the single-axis positioner fixture is locked, the adjusting shims are removed, the bearings on both sides are locked, and the transfer is completed;

[0044] S012, The rotor is separated from the tail cover mounting assembly:

[0045] Move the bearing pulling fixture to the area below the servo pulling motor; open the left and right retaining fingers of the fixture; start the program to press down;

[0046] After pressing in place, use the snap ring pliers in the tooling to remove the retaining ring; push the left and right snap fingers of the tooling, insert them under the bearing, lock them, pull upwards to pull out the bearing, and manually remove the bearing;

[0047] Follow the quick change instructions to remove the tooling; take out the rotor and place it on the manual control panel;

[0048] S013, Disassembly of internal rotor components:

[0049] Move the rotor assembly under the manual press; replace the tooling in the tooling set under the manual press; control the press to press down, compressing the spring to the predetermined position and holding it;

[0050] Use a flathead cutter from the tooling kit to remove the wire retaining ring; restore the manual press, remove the other parts in the middle of the rotor, and remove the adjusting washer on the main shaft;

[0051] S014, Pulling out the sealing tail cap assembly:

[0052] Use the snap ring pliers in the tooling set to remove the retaining ring; replace it with the mating tool in the tooling set and clamp it to confirm; then use the sealing end cap puller in the tooling set to clamp the sealing housing assembly.

[0053] Start the servo tension motor, lower it, and automatically dock; the servo tension motor moves upward, pulling the tooling along with the sealing tail cap assembly out of the tail cap mounting base housing assembly; remove the remaining parts;

[0054] Use the cordless electric wrench in the tooling kit, along with a 5mm small fly screwdriver bit, to remove the side plug of the tail cap mounting bracket;

[0055] S015, Disassembly of the tail cap sealing assembly:

[0056] Place the sealing end cap pressure head and base from the tooling into the upper and lower positions of the manual press, respectively;

[0057] Manually press down the press to push the graphite bushing assembly out of the sealing housing; manually remove the remaining parts;

[0058] S016. The spindle bearing assembly is pulled out of the tail cover housing:

[0059] Fix the spindle pulling fixture in the tooling set onto the spindle; start the program, the servo pull motor descends, and the docking is completed;

[0060] The servo tension motor rises, lifting the spindle pulling tool in the tooling, which drives the spindle and bearing to pull out the tail cover mounting housing; loosen the end cover front screw plug;

[0061] S017. Removal of spindle and bearings:

[0062] Place the sleeve from the tooling tool onto the shaft, use the calipers from the tooling tool to remove the retaining ring, and replace the bearing removal sleeve and pressure block from the tooling tool with the corresponding positions on the pneumatic-hydraulic booster cylinder press.

[0063] Place the bearing into the ejector cylinder; start the press's fast-forward cylinder, and after the pressure block presses down on the main shaft, start the booster cylinder to push the main shaft out of the bearing;

[0064] S018. Removing the swashplate bearing: Start the single-axis positioner so that the left bearing faces down, and shake the swashplate to remove the bearing; start the single-axis positioner so that the right bearing faces down, and shake the swashplate to remove the bearing.

[0065] S019. Manually tilt and remove the swashplate: With the single-axis positioner rotating and the swashplate facing upwards, manually tilt and remove the swashplate, and unscrew the oil inlet plug in the housing to release the oil inside the housing.

[0066] S020, Oil Pouring: Rotate the dual-axis positioner to turn the inner cavity of the housing downwards, pour oil into the housing, observe the housing after the oil pouring is completed, and click to confirm the process step;

[0067] S021. Removal of the oil distributor plate:

[0068] Using the cordless electric wrench in the tooling kit, along with a flathead screwdriver, remove the three screws; install the distributor plate puller in the tooling kit onto the distributor plate, and tighten it to fix it as one unit with the distributor plate;

[0069] Move the servo tension motor above the dual-axis positioner, lock the button pin, control the servo pull motor to descend using the button, and manually control it to dock with the tooling; manually control the pull action using the button, and reset after the pull is completed.

[0070] S022, Voltage Adjustment, Buffer Blockage, and Electromagnet Cover Removal: Use a torque gun with a Zhongfei-10mm bit to remove the plug; use the electromagnet removal tool in the tooling kit to remove the electromagnet cover.

[0071] S023, Disassembly of pressure regulating sleeve and valve:

[0072] Using the electric pistol in the tooling kit, along with the Zhongfei-19mm slide, remove the pressure regulating valve sleeve, and use tweezers to remove the pressure regulating valve core;

[0073] Use an electric tightening shaft and the Zhongfei-19mm socket in the tooling to remove the oil return connector or plug;

[0074] Use the open-end wrench and flathead screwdriver in the tooling kit to disassemble the pressure adjusting nut; use the 4mm expansion bolt in the tooling kit to remove the plug chamber from the housing; use tweezers to remove the remaining parts;

[0075] S024. Decomposition of blockages on the high-pressure nozzle and other plugs on the same surface:

[0076] Use the electric tightening shaft in conjunction with the high-pressure nozzle sleeve in the tooling to remove the high-pressure nozzle; use the electric tightening shaft to remove the remaining plugs; use the wrench in the tooling to unscrew the oil inlet nozzle or plug.

[0077] S025, Disassembly of electromagnet and electrical plug:

[0078] Rotate the housing 180 degrees and re-clamp it so that the electromagnet faces outward; remove the electromagnet plug screw, use the electromagnet plug removal tool in the tooling to remove the electromagnet plug, and remove the electromagnet plug wire.

[0079] Use the electromagnet in the tooling to hold the tool and remove the electromagnet, and use tweezers to pick up the electromagnet unloading valve core; use the puller in the tooling to remove the electromagnet valve, and use the tweezers in the tooling to pick up the remaining parts inside the electromagnet; use the M5 puller in the tooling to remove the buffer chamber plug and the pressure regulating piston plug.

[0080] S026. Removal of the housing unloading valve: Use the 5-inch small calipers in the tooling to remove the unloading valve retaining ring; use the 7.5mm expansion tire in the tooling to remove the safety valve; use the tweezers in the tooling to manually remove the remaining parts;

[0081] S027. Barrier disassembly return spring blockage, follow-up blockage:

[0082] Use a torque gun to remove the return spring plug; use the M5 puller in the tooling kit to pull out the internal plug;

[0083] Use the mechanical ratchet wrench in the tooling set to remove the follower piston nut; use the M5 puller in the tooling set to pull out the internal plug; use tweezers and a flathead screwdriver to remove the gasket; use the expansion bolt in the tooling set to pull out the follower piston sleeve.

[0084] S028. Preliminary treatment: The loose parts pallet is manually dragged onto the ultrasonic cleaning machine through the bullseye turntable. Here, cleaning agents and manual tools such as brushes are used to perform preliminary treatment on the surface of the parts.

[0085] S029. Cleaning: Drag the tray onto the lifting platform above the ultrasonic cleaner, fix it, press the button to confirm, the lifting platform will descend, the workpiece and the tray will sink into the cleaning agent, and be cleaned by ultrasonic waves. After cleaning, it will rise, and the workers will manually use an air blower to blow each piece of the workpiece into the cleaning agent.

[0086] S030. Remove parts: After cleaning, remove the parts one by one and place them on the corresponding positions on the buffer tray via the bullseye turntable.

[0087] S031. Conveying parts: Once the parts are fully placed on the pallet, call the AGV to connect the pallet to the buffer channel and transfer them one by one to the entrance of the automated warehouse.

[0088] S032. Visual recognition: Determine whether the materials in the pallet are complete, record the information of materials that are not in the pallet in the terminal device and upload them to the MES management system;

[0089] S033. After the visual recognition inspection is completed, the materials are automatically transferred to the automated storage and retrieval system.

[0090] The tooling in step S013 uses a spring pressure head.

[0091] The beneficial effects of this invention are: the hydraulic plunger pump disassembly and cleaning workstation redesigns all production tooling according to the optimal process flow, integrates it into each repair workstation, and introduces automation / semi-automation technologies such as positioners and transfer motors, thereby avoiding safety risks, reducing labor intensity, reducing non-value-adding time such as tooling search, preparation, and retrieval, improving work efficiency, reducing unnecessary time waste, and can be used to solve similar technical problems. Attached Figure Description

[0092] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0093] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0094] Figure 2 This is a partial three-dimensional structural diagram of the present invention. Figure 1 ;

[0095] Figure 3 This is a partial three-dimensional structural diagram of the present invention. Figure 2 .

[0096] In the diagram, 1. RFID reader; 2. Lifting motor; 3. Terminal equipment; 4. Dual-axis positioner; 5. Electric tightening shaft; 6. Single-axis positioner; 7. Servo tension / compression motor; 8. Telescopic oil receiving tray; 9. Tooling; 10. Ultrasonic cleaning machine; 11. Manual control panel; 12. Pneumatic-hydraulic booster cylinder press; 13. Bullseye steering platform; 14. Manual press; 15. Buffer material channel. Detailed Implementation

[0097] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below.

[0098] like Figures 1 to 3 As shown, an aviation hydraulic plunger pump disassembly and cleaning workstation includes a terminal device 3 for receiving tasks, and also includes:

[0099] RFID reader 1 reads the workstation where the products to be broken down are correct, according to the task.

[0100] Lifting motor 2 lifts the product that needs to be disassembled;

[0101] Dual-axis positioner 4 and single-axis positioner 6 automatically adjust the product position according to the work step task;

[0102] Electric tightening shaft 5, assisting manual disassembly using electric power;

[0103] Servo tension motor 7 assists in manually placing the disassembled end caps onto the clamping fixture of single-axis positioner 6;

[0104] Telescopic oil receiving tray 8 is used to collect oil from the product during decomposition.

[0105] Tooling 9, to assist in disassembling small parts;

[0106] Ultrasonic cleaning machine 10, for preliminary cleaning of disassembled parts;

[0107] Manual control panel 11, manual disassembly of small parts;

[0108] 12 pneumatic-hydraulic booster cylinder press, with manual assistance to disassemble the main shaft bearing;

[0109] Bullseye steering platform 13: Place the disassembled cleaning frame steering conversion into the parts box;

[0110] Manual press 14, assisting in the disassembly of the main shaft bearing;

[0111] Buffer channel 15 waits for the AGV to put the disassembled parts into the material box and then transport them into the warehouse.

[0112] The above components are integrated into the decomposition and cleaning workstation and are distributed in a U-shaped layout of the workstation according to the process execution sequence. The decomposition work is completed step by step using these components.

[0113] Terminal device 3 first receives the task. The workstation RFID reader 1 reads the product to be disassembled according to the task to see if it is correct. After confirming that it is correct, the lifting motor 2 lifts the product to be disassembled and installs it onto the clamping fixture of the dual-axis positioner 4.

[0114] The dual-axis positioner 4 automatically adjusts the product position according to the work steps and uses an electric tightening shaft 5 to assist manual disassembly.

[0115] By inventing a workstation and process for disassembling and cleaning aviation hydraulic piston pumps, the problems of low integration in disassembly, cleaning and repair of aviation hydraulic piston pumps can be effectively solved, thereby improving production efficiency and stabilizing product quality.

[0116] The invented hydraulic piston pump repair line has a reasonable process layout and a production process that conforms to the lean concept. It is simple, efficient, and can be used in the design and manufacture of disassembly and cleaning workstations for similar products. It can solve similar technical problems and ensure the quality stability and reliability of hydraulic piston pump disassembly and cleaning. It saves disassembly time, improves work efficiency and accuracy, and can be applied to the disassembly and cleaning process of hydraulic piston pumps. It has good application prospects and significant economic benefits.

[0117] The servo tension / compression motor 7 assists manual labor in placing the disassembled end caps onto the clamping fixture of the single-axis positioner 6, and automatically adjusts the product position according to the work step.

[0118] The hydraulic plunger pump disassembly and cleaning workstation redesigns all production tooling according to the optimal process flow and integrates it into various repair workstations. It also introduces automation / semi-automation technologies such as positioners and transfer motors to avoid safety risks, reduce labor intensity, reduce non-value-adding time such as tool finding, preparation, and retrieval, improve work efficiency, and reduce unnecessary time waste. It can be used as a reference to solve similar technical problems.

[0119] The tooling 9 assists in disassembly, and the disassembled small parts are manually disassembled on the manual operating table 11, with the manual press 14 assisting in the disassembly. The specific workpieces of the tooling 9 are as follows:

[0120]

[0121]

[0122] During the disassembly process, the telescopic oil receiving pan 8 is used to collect the oil inside the product. Tooling 9 is used to assist in the disassembly. The disassembled small parts are manually disassembled on the manual operating table 11. The manual press 14 is used to assist in the disassembly. The main shaft bearing is manually disassembled using a pneumatic-hydraulic booster cylinder press 12. After the disassembly is completed, the parts are placed in a cleaning frame and initially cleaned with an ultrasonic cleaner 10.

[0123] After cleaning, the disassembled cleaning frame is turned and placed into the parts box using the bullseye turntable 13. The parts box is then placed into the storage box by the AGV in the buffer channel 15.

[0124] A process for disassembling and cleaning a hydraulic piston pump for aviation, the specific steps of which are as follows:

[0125] S001. According to the task issued by the MES system: the terminal equipment of the cleaning workstation 3 receives the task and receives the hydraulic piston pump product transferred by the AGV.

[0126] S002. The pallet enters the conveyor line; personnel confirm via button:

[0127] The lifting motor 2 rises, and the material is fed into the fixed position of the dual-axis positioner 4; the personnel adjust the fixed fixture to lock the hydraulic piston pump with the dual-axis positioner 4; the personnel confirm with the button, and the lifting motor 2 descends;

[0128] The telescopic oil receiving tray 8 extends out to cover the conveyor line and lifting motor 2 below the positioner;

[0129] S003. Remove fuses: Use diagonal pliers or needle-nose pliers in tool 9 to cut / pull, and use the dual-axis positioner 4 to rotate to the specified angle to easily remove fuses from various parts of the mounting surface.

[0130] S004, Tilting: The dual-axis positioner rotates X° to adjust the workpiece to a suitable posture, removes the matching components, and places them in the tray of the 15 buffer channel;

[0131] S005. Loosen the plugs: Use the mechanical wrench in tool 9 to loosen the high-pressure nozzle connector or accessory connector, loosen the oil inlet pipe plug, and use the extended ratchet wrench in tool 9 to loosen the remaining plugs.

[0132] S006. Remove the plugs: Use the electromagnet in tool 9 to clamp the electromagnet housing with the tool, then remove the tool to loosen the electromagnet locking nut; use the mechanical ratchet wrench in tool 9 to loosen the two plugs near the electromagnet, and use the extended ratchet wrench in tool 9 to loosen the remaining plugs.

[0133] S007. Loosen the pressure regulating valve sleeve: First, use the ratchet wrench in tool 9 with a 17mm sleeve and a 19mm open-end wrench to fix the pressure regulating sleeve, and manually loosen the pressure regulating valve adjusting nut; then use the ratchet wrench with a 19mm sleeve to loosen the pressure regulating valve sleeve.

[0134] S008. Disassemble the drive shaft assembly:

[0135] Replace the pull-out fixture in tooling 9 with the servo pull-out motor 7; remove the drive shaft disassembly fixture from tooling 9, rotate to open the clamping fingers, and mount them on the upper end of the drive shaft;

[0136] Rotate to clamp the fingers, deforming the locking ring; button controls the servo tension motor 7 to descend, manually control its docking with the tooling; button manually controls the pulling action, after pulling is completed, reset; press the pin to lock, push open the electric cylinder;

[0137] S009. Using the electric tightening shaft 5, with a small fly-14mm socket, rotate counterclockwise to remove 18 M8 external hex screws; using the wireless electric gun in tooling 9, with a small fly-5.5mm bit, remove the screw plug on the left side of the end cover.

[0138] S010, Pull-out removal of the tail cap assembly:

[0139] Open the oil inlet plug and drain the oil; remove the tail cap from tool 9, disassemble the tool, rotate to open the clamping fingers, and install them on the upper end of the drive shaft.

[0140] Rotate and clamp the fingers to fix the tooling and tail cap together; the button controls the servo tension motor 7 to descend, and the manual control controls its docking with the tooling.

[0141] The button manually controls the pulling action. After the pulling is complete, it resets. Manually remove the spring, support, and spring seat from the housing.

[0142] S011. Tail cover assembly transfer and disassembly clamping:

[0143] After the tail cap assembly is picked up, the servo tension motor 7 is manually moved to the single-axis positioner 6. Note that the end cap may interfere with the fixing claw.

[0144] The button controls the pneumatic positioning pin to fix the position of the servo tension motor 7; the button controls the servo tension motor 7 to descend, so that the tail cover assembly enters the single-axis clamp.

[0145] The electric cylinder is moved to the safe position and reset; the tail cover pulling fixture and docking fixture in tool 9 are removed; the single-axis positioner fixture is locked, the adjusting shims are removed, the bearings on both sides are locked, and the transfer is completed;

[0146] S012, The rotor is separated from the tail cover mounting assembly:

[0147] Replace the bearing pulling fixture below the servo pulling motor 7; open the left and right retaining fingers of the fixture; start the program to press down;

[0148] After pressing in place, use the snap ring pliers in tool 9 to remove the retaining ring; push the left and right snap fingers of the tool to insert them under the bearing, lock them, pull upwards to pull out the bearing, and manually remove the bearing;

[0149] Follow the quick change instruction to remove the tooling; take out the rotor and place it on the manual control panel 11.

[0150] S013, Disassembly of internal rotor components:

[0151] Move the rotor assembly below the manual press 14; replace the tooling in tooling 9 below the manual press 14; control the press to press down, compressing the spring to the predetermined position and holding it;

[0152] Use the flathead cutter in tool 9 to remove the wire retaining ring; restore the manual press 14, remove the other parts in the middle of the rotor, and remove the adjusting washer on the main shaft;

[0153] S014, Pulling out the sealing tail cap assembly:

[0154] Use the snap ring pliers in tool 9 to remove the retaining ring; replace it with the mating tool in tool 9 and clamp it to confirm; then use the sealing end cap puller in tool 9 to clamp the sealing housing assembly.

[0155] Start the servo tension motor 7, lower it, and automatically dock; the servo tension motor 7 moves upward, pulling the tooling along with the sealing tail cover assembly out of the tail cover mounting base housing assembly; remove the remaining parts;

[0156] Using the cordless electric wrench in tool 9 with a 5mm bit, remove the side plug of the tail cap mounting bracket;

[0157] S015, Disassembly of the tail cap sealing assembly:

[0158] Place the sealing end cap pressure head and base in tool 9 at the upper and lower positions of the manual press 14, respectively;

[0159] Manually press down the press to push the graphite bushing assembly out of the sealing housing; manually remove the remaining parts;

[0160] S016. The spindle bearing assembly is pulled out of the tail cover housing:

[0161] Fix the spindle pulling fixture in tooling 9 onto the spindle; start the program, and the servo tension motor 7 descends to complete the docking;

[0162] The servo tension motor 7 rises, lifting the spindle pulling tool in the tooling 9, which drives the spindle and bearing to pull out the tail cover mounting housing; loosen the end cover front end plug.

[0163] S017. Removal of spindle and bearings:

[0164] Place the sleeve in tool 9 onto the shaft, use the caliper in tool 9 to remove the retaining ring, and replace the bearing removal sleeve and pressure block in tool 9 with the corresponding positions in the pneumatic-hydraulic booster cylinder press 12.

[0165] Place the bearing into the ejector cylinder; start the press's fast-forward cylinder, and after the pressure block presses down on the main shaft, start the booster cylinder to push the main shaft out of the bearing;

[0166] S018. Removing the swashplate bearing: Start the 6-axis single-axis positioner so that the left bearing faces down, and shake the swashplate to remove the bearing; start the 6-axis single-axis positioner so that the right bearing faces down, and shake the swashplate to remove the bearing.

[0167] S019. Manually tilt and remove the swashplate: Rotate the single-axis positioner 6 with the swashplate facing upwards, manually tilt and remove the swashplate, and unscrew the oil inlet plug of the housing to release the oil inside the housing.

[0168] S020, Oil Pouring: Rotate the dual-axis positioner 4 to turn the inner cavity of the housing downwards, pour oil into the housing, observe the housing after the oil pouring is completed, and click to confirm the process step;

[0169] S021. Removal of the oil distributor plate:

[0170] Using the wireless electric wrench in tool 9, along with a flathead screwdriver, remove 3 screws; install the distributor plate puller in tool 9 onto the distributor plate and tighten it to fix it as one piece with the distributor plate;

[0171] Move the servo tension motor 7 to the top of the dual-axis positioner, lock the button pin, control the servo pull motor to descend using the button, manually control it to dock with the tooling; manually control the pull action using the button, and reset after the pull is completed.

[0172] S022, Voltage Adjustment, Buffer Blockage, and Electromagnet Cover Removal: Use a torque gun with a Zhongfei-10mm bit to remove the plug; use the electromagnet removal tool in tooling 9 to remove the electromagnet cover.

[0173] S023, Disassembly of pressure regulating sleeve and valve:

[0174] Using the electric pistol in tool 9, along with the Zhongfei-19mm slide, remove the pressure regulating valve sleeve and use tweezers to remove the pressure regulating valve core.

[0175] Use the electric tightening shaft 5, along with the Zhongfei-19mm socket in tooling 9, to remove the oil return connector or plug;

[0176] Use the open-end wrench and flathead screwdriver in tool 9 to disassemble the pressure adjusting nut; use the 4mm expansion bolt in tool 9 to remove the plug chamber from the housing; use tweezers to remove the remaining parts;

[0177] S024. Decomposition of blockages on the high-pressure nozzle and other plugs on the same surface:

[0178] Use the electric tightening shaft 5 in conjunction with the high-pressure nozzle sleeve in tool 9 to remove the high-pressure nozzle; use the electric tightening shaft 5 to remove the remaining plugs; use the wrench in tool 9 to unscrew the oil inlet nozzle or plug.

[0179] S025, Disassembly of electromagnet and electrical plug:

[0180] Rotate the housing 180 degrees and re-clamp it so that the electromagnet faces outward; remove the electromagnet plug screw, use the electromagnet plug removal tool in tool 9 to remove the electromagnet plug, and remove the electromagnet plug wire.

[0181] Use the electromagnet in tool 9 to hold the tool and remove the electromagnet, and use tweezers to pick up the electromagnet unloading valve core; use the puller in tool 9 to remove the electromagnet valve, and use the tweezers in tool 9 to pick up the remaining parts inside the electromagnet; use the M5 puller in tool 9 to remove the buffer chamber plug and the pressure regulating piston plug.

[0182] S026. Removal of the housing unloading valve: Use the 5-inch small calipers in tool 9 to remove the unloading valve retaining ring; use the 7.5mm expansion tire in tool 9 to remove the safety valve; use the tweezers in tool 9 to manually remove the remaining parts;

[0183] S027. Barrier disassembly return spring blockage, follow-up blockage:

[0184] Use a torque gun to remove the return spring plug; use the M5 puller in tool 9 to pull out the internal plug;

[0185] Use the mechanical ratchet wrench in tool 9 to remove the follower piston nut; use the M5 puller in tool 9 to pull out the internal plug; use tweezers and a flathead screwdriver to remove the gasket; use the expansion bolt in tool 9 to pull out the follower piston sleeve.

[0186] S028. Preliminary treatment: The loose parts pallet is manually dragged onto the ultrasonic cleaner 10 through the bullseye turntable 13. Here, cleaning agent and manual tools such as brushes are used to perform preliminary treatment on the surface of the parts.

[0187] S029. Cleaning: Drag the tray onto the lifting platform above the ultrasonic cleaner 10, fix it, press the button to confirm, the lifting platform will descend, the workpiece and the tray will sink into the cleaning agent, and be cleaned by ultrasonic waves. After cleaning, it will rise, and the workers will manually use an air blower to blow each piece of the workpiece into the cleaning agent.

[0188] S030. Remove parts: After cleaning, remove the parts one by one and place them on the corresponding positions on the tray of the buffer channel 15 through the bullseye turntable 13.

[0189] S031. Conveying parts: Once the parts are fully placed on the pallet, call the AGV to connect the pallet to the buffer channel 15 and transfer them one by one to the entrance of the automated warehouse.

[0190] S032. Visual recognition: Determine whether the materials in the pallet are complete, record the information of materials that are not in the pallet on the 3 terminal device and upload it to the MES management system;

[0191] S033. After the visual recognition inspection is completed, the materials are automatically transferred to the automated storage and retrieval system.

[0192] The tooling in step S013 is a spring pressure head.

[0193] There is a timetable for disassembling the pump, and the specific timing is as follows:

[0194] Work Projects Time (minutes) Remark Manual login, task selection 2 The stacker crane delivers a pallet to the loading / unloading point of the automated storage and retrieval system (AS / RS) conveyor line. 2 Pallet loading, AGV transports the pallets to the dismantling station and returns, retrieving all 4 pallets. 8 Manual disassembly 67 The workpiece is placed in a special cleaning tray for ultrasonic cleaning. 5 The parts are manually dried, removed, and placed on a dedicated storage tray. 7 Manual confirmation, automatic return to inventory 10

[0195] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely prisms of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A process method for a disassembly and cleaning workstation for an aviation hydraulic plunger pump, the workstation comprising a terminal device (3) for receiving tasks, and: RFID reader (1) reads the workstation where the products to be decomposed are correct according to the task. Lifting motor (2) lifts the product to be disassembled; The dual-axis positioner (4) and the single-axis positioner (6) automatically adjust the product position according to the work step task; Electric tightening shaft (5) assists in manual disassembly using electric power; Servo tension motor (7) assists manpower in placing the disassembled end caps onto the clamping fixture of the single-axis positioner (6); Telescopic oil receiving tray (8) is used to collect oil from the product during decomposition; Tooling (9) to assist in disassembling small parts; Ultrasonic cleaning machine (10) for preliminary cleaning of disassembled parts; Manual operating table (11), manual operation to disassemble small parts; Pneumatic-hydraulic booster cylinder press (12), with manual assistance in disassembling the main shaft bearing; Bullseye steering platform (13) is used to put the disassembled cleaning frame steering conversion into the parts box; Manual press (14) to assist in disassembling the main shaft bearing; The buffer channel (15) waits for the AGV to put the disassembled parts into the material box and then transport them into the warehouse. Its features include: The specific steps of the method are as follows: S001. According to the task issued by the MES system: decompose and clean the terminal equipment of the workstation (3) receive the task and receive the hydraulic plunger pump product transferred by the AGV. S002, The pallet enters the conveyor line; personnel confirm via button. S003, Remove fuses: Use the diagonal pliers or needle-nose pliers in the tooling (9) to cut / pull, and use the dual-axis positioner (4) to rotate to the specified angle to easily remove fuses from various parts of the mounting surface; S004, Flip: The dual-axis positioner (4) flips the workpiece by X°, adjusts it to a suitable posture, removes the matching components, and places it in the tray of the buffer channel (15); S005, Loosen the plug: Use the mechanical wrench in tooling (9) to loosen the high pressure nozzle joint or accessory joint, loosen the oil inlet plug, and use the extended ratchet wrench in tooling (9) to loosen the remaining plugs; S006. Remove the plug: Use the electromagnet in the tooling (9) to clamp the electromagnet housing, then remove the tooling to loosen the electromagnet locking nut. Use the mechanical ratchet wrench in tooling (9) to loosen the two plugs near the electromagnet, and use the extended ratchet wrench in tooling (9) to loosen the remaining plugs; S007, Loosen the pressure regulating valve sleeve: First, use the ratchet wrench in tooling (9) with a 17mm sleeve and a 19mm open wrench to fix the pressure regulating sleeve, and manually loosen the pressure regulating valve adjusting nut; then use the ratchet wrench with a 19mm sleeve to loosen the pressure regulating valve sleeve. S008, Disassembling the drive shaft assembly: Replace the pull-out fixture in the tooling (9) with the servo pull-out motor (7); remove the drive shaft disassembly fixture from the tooling (9), rotate to open the clamping fingers, and install them on the upper end of the drive shaft; rotate to tighten the clamping fingers, causing the locking ring to deform; use the button to control the servo pull-out motor (7) to descend, and manually control it to dock with the tooling; use the button to manually control the pull-out action, and after the pull-out is completed, reset; press the locking pin and push open the electric cylinder; S009. Using the electric tightening shaft (5) with a small fly-14mm socket, rotate counterclockwise to remove 18 M8 external hex bolts; using the wireless electric gun in the tooling (9) with a small fly-5.5mm bit, remove the screw plug on the left side of the end cover. S010, Pulling and disassembling the tail cover assembly: Open the oil inlet plug and drain the oil; take out the tail cover disassembly tool from the tooling (9), rotate to open the clamping fingers, and install them on the upper end of the drive shaft; rotate to tighten the clamping fingers so that the tooling and the tail cover are fixed together; use the button to control the servo pull motor (7) to descend, and manually control it to dock with the tooling; use the button to manually control the pulling action, and after the pulling is completed, reset; manually remove the spring, support, and spring seat from the housing; S011. Tail cover assembly transfer and disassembly clamping: After the tail cover assembly is picked up, manually move the servo tension motor (7) to move it onto the single-axis positioner (6), being careful that the end cover does not interfere with the fixed claw; use the button to control the pneumatic positioning pin to fix the position of the servo tension motor (7); use the button to control the servo tension motor (7) to descend, so that the tail cover assembly enters the single-axis fixture; use the jog electric cylinder to rise to the safe position and reset; remove the tail cover pulling fixture and docking fixture from the tooling (9); lock the single-axis positioner fixture, remove the adjusting shims, lock the bearings on both sides, and the transfer is complete; S012. The rotor is separated from the tail cover mounting assembly: Replace the bearing pulling fixture with the one below the servo pulling motor (7); open the left and right locking fingers of the fixture; start the program to press down; after pressing in place, use the snap ring pliers in the fixture tool (9) to remove the retaining ring; push the left and right locking fingers of the fixture, insert them under the bearing, lock them, pull them upward, pull out the bearing, and manually remove the bearing; press the quick change instruction to remove the fixture; take out the rotor and place it on the manual operating table (11). S013, Disassembly of internal rotor parts: Transfer the rotor assembly to the underside of the manual press (14); replace the tool in the tooling tool (9) with the tool in the manual press (14); control the press to press down, press the spring to the predetermined position and hold it; use the flathead cutter in the tooling tool (9) to remove the wire retaining ring; restore the manual press (14), remove the other parts in the middle of the rotor, and remove the adjusting washer on the main shaft; S014, Pulling out of the sealing tail cap assembly; S015, Disassembly of the tail cap sealing assembly: Place the sealing tail cap pressure head and base in the tooling (9) at the upper and lower positions of the manual press (14); manually press down the press to press the graphite bushing assembly out of the sealing housing; manually remove the remaining parts. S016, Pulling the spindle bearing assembly out of the tail cover housing: Fix the spindle pulling fixture in the tooling tool (9) onto the spindle; start the program, the servo pulling motor (7) descends to complete the docking; the servo pulling motor (7) rises to lift the spindle pulling fixture in the tooling tool (9), driving the spindle and bearing to pull out of the tail cover mounting housing; loosen the end cover front end plug; S017. Removal of spindle and bearing: Place the sleeve in tooling (9) on the shaft, remove the retaining ring with calipers in tooling (9), and replace the bearing removal cylinder and pressure block in tooling (9) with the corresponding position in the pneumatic-hydraulic booster cylinder press (12); put the bearing into the removal cylinder; start the press's fast-advance cylinder, and after the pressure block presses down on the spindle, start the booster cylinder to push the spindle out of the bearing; S018, Remove the swashplate bearing: Start the single-axis positioner (6) so that the left bearing faces down, and shake the swashplate to remove the bearing; Start the single-axis positioner (6) so that the right bearing faces down, and shake the swashplate to remove the bearing; S019. Manually tilt and remove the swashplate: Rotate the single-axis positioner (6) with the swashplate facing upwards, manually tilt and remove the swashplate, and unscrew the oil inlet plug of the housing to release the oil inside the housing. S020, Oil pouring: Rotate the dual-axis positioner (4) so ​​that the inner cavity of the housing is facing down. Pour oil into the housing and observe the completion of oil pouring. Click to confirm the process. S021, Disassembly of the oil distributor plate; S022, Voltage regulation, buffer blockage, electromagnet cover disassembly; S023, Disassembly of pressure regulating sleeve and valve; S024, Disassembly of high-pressure nozzles and other plugs on the same surface; S025 Disassembly of electromagnet and electrical plug; S026. Removal of the shell unloading valve; S027. Disassemble the return spring plug and the follower plug; S028. Use cleaning agents and hand tools such as brushes to perform preliminary treatment on the surface of the parts; S029. Cleaning: Drag the tray onto the lifting platform above the ultrasonic cleaner (10), fix it, press the button to confirm, the lifting platform will descend, the workpiece and the tray will sink into the cleaning agent, and be cleaned by ultrasonic waves. After cleaning, it will rise, and the workers will use an air blower to blow each piece of the workpiece one by one. S030. Take out the part and place it in the corresponding position on the tray of the buffer channel (15); S031, AGV will transfer the pallets to the buffer channel (15) one by one to the entrance of the vertical warehouse; S032, Visual recognition: Determine whether the materials in the tray are complete, record the information of materials not in the tray in the terminal device (3) and upload it to the MES management system; S033. After the visual recognition inspection is completed, the materials are automatically transferred to the automated storage and retrieval system.

2. The process method for a disassembly and cleaning workstation for an aviation hydraulic plunger pump according to claim 1, characterized in that: The lifting motor (2) lifts the product to be disassembled and installs it onto the clamping fixture of the dual-axis positioner (4).

3. The process method for a disassembly and cleaning workstation for an aviation hydraulic plunger pump according to claim 1, characterized in that: The dual-axis positioner (4) automatically adjusts the product position according to the work steps and uses an electric tightening shaft (5) to assist manual disassembly.

4. The process method for a disassembly and cleaning workstation for an aviation hydraulic plunger pump according to claim 1, characterized in that: The servo tension motor (7) assists the human in placing the disassembled end caps onto the clamping fixture of the single-axis positioner (6), and automatically adjusts the product position according to the work step.

5. The process method for a disassembly and cleaning workstation for an aviation hydraulic plunger pump according to claim 1, characterized in that: The tooling (9) is used to assist in disassembly. The disassembled small parts are manually disassembled on the manual operating table (11) and the manual press (14) is used to assist in disassembly.

6. The process method for a disassembly and cleaning workstation for an aviation hydraulic plunger pump according to claim 1, characterized in that: The tooling in step S013 (9) uses a spring pressure head.

Images