Flexible machining production line and machining method for aviation machined parts

Abstract

The flexible machining production line comprises a guide rail, a robot is arranged on the guide rail, a fence is arranged around the guide rail, material bins are arranged on the outer sides of the two sides of the fence respectively, a plurality of vertical three-axis machining centers are arranged on one sides of the material bins side by side in the extending direction of the fence, and a master control platform is arranged on the outer side of the end, close to the material bins, of the fence. Material loading and unloading stations are arranged on two sides of the master control platform; a power distribution cabinet is arranged on the outer side of one side of the fence; a liquid supply system is arranged on the outer side of the end, away from the material bin, of the fence, the liquid supply system is connected with each vertical three-axis machining center through a liquid supply pipe, the liquid supply system, the robot and the vertical three-axis machining centers are in communication connection with a master control platform, and the master control platform is electrically connected with a power distribution cabinet; the invention further discloses a machining method of the aviation machining part. The method is suitable for machining aluminum alloy, titanium alloy and ultrahigh-strength steel, non-ferrous metal and ferrous metal are effectively and compatibly machined, and remodeling of machined parts in the machining process is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of aviation production equipment, and relates to a flexible processing production line for aviation machined parts. The invention also relates to a processing method for aviation machined parts. Background Art

[0002] At present, there are many deficiencies in the flexible processing production line of aviation machined parts: First, aviation CNC vertical processing equipment either focuses on the processing of aluminum alloy machined parts, using high-speed, low-torque electric spindles with a spindle power of 11kW, a speed of 10,000rpm-20,000rpm, and a torque of 60N·m-70N·m, or focuses on the processing of titanium alloy and ultra-high-strength steel machined parts, using low-speed, high-torque mechanical spindles with a spindle power of 15kW, a speed of 5,000rpm-6,000rpm, and a torque of 300N·m-1000N·m; Second, traditional Single-machine processing of CNC equipment is affected by the speed of cutting fluid reflux and volatilization. The pressure and flow design of cutting fluid are conservative. The pressure is 1Mpa-2Mpa and the flow is 1L / min-2L / min. As a result, the machining parts cannot be fully cooled during processing, affecting the surface quality of machined parts and the life of tool, or the waste chips cannot be automatically washed away in time, resulting in tool squeezing, resulting in rough surface quality of machined parts and abnormal tool loss, and manual cleaning of waste chips is required; Third, flexible production lines are mostly used for fast changeover processing of machined parts in small varieties and large quantities in the automotive industry. Domestic aviation enterprises set up 2-6 sets of flexible line main equipment. When there are more than 6 online equipment, the debugging time of machine parts processing is long and the production line control is difficult; Fourth, the CNC processing time of single-machine equipment depends on manual recording, which is easy to distort the data. Analysis can only be carried out after the data is summarized, which is time-delayed; Fifth, the basic data of equipment scheduling is inaccurate and relies on personal experience. The workload of scheduling personnel is large, and the adjustment is cumbersome, making it difficult to achieve balance; Sixth, to replenish cutting fluid for single-machine equipment, it is necessary to manually mix the cutting fluid in advance, and then manually distribute the cutting fluid to the equipment storage tank. The cutting fluid configuration ratio depends on personal experience. experience, and the labor intensity of the operator is high; Seventh, single-machine equipment is used for sheet metal protection, and the top is generally not closed. When the flow pressure of the cutting fluid increases during processing, the cutting fluid is easy to splash outside the machine tool, and the oil mist generated after the cutting fluid evaporates pollutes the environment, posing a potential health hazard to personnel; Eighth, machined parts mainly use M12 or M16 countersunk bolts to clamp the blanks, which occupies more blanks. In order to avoid loosening of machined parts or chipping of tool teeth after milling the bolts during processing, the blanks need to be enlarged, resulting in a large consumption of blank materials; Therefore, it is necessary to develop a new flexible processing production line for aviation machined parts. Summary of the invention

[0003] The purpose of the present invention is to provide a flexible processing production line for aviation machined parts, which solves the problem in the prior art that the cutting fluid of a single machine needs to be manually proportioned in advance and then manually distributed to the equipment liquid storage tank when replenishing the cutting fluid.

[0004] A second object of the present invention is to provide a method for processing aircraft machined parts.

[0005] The first technical solution adopted by the present invention is a flexible processing production line for aviation machined parts, including a guide rail, a robot is arranged on the guide rail, a fence is arranged around the guide rail, a material bin is arranged on each side of the fence, and a plurality of vertical three-axis machining centers are arranged side by side on the outer side of one side of the material bin along the extension direction of the fence. A general control platform is arranged on the outer side of one end of the fence close to the material bin, material loading and unloading stations are arranged on both sides of the general control platform, and a power distribution cabinet is arranged on the outer side of one side of the fence; a liquid supply system is arranged on the outer side of one end of the fence away from the material bin, and the liquid supply system is connected to each vertical three-axis machining center through a liquid supply pipe, and the liquid supply system, the robot, and the vertical three-axis machining center are respectively communicated with the general control platform, and the general control platform is electrically connected to the power distribution cabinet.

[0006] The first technical solution of the present invention is also characterized in that: The fence includes several equally distributed steel pipes, adjacent steel pipes are connected by steel meshes, several steel meshes are provided with safety doors, the safety doors are provided with contact switches and alarm lights, the contact switches and alarm lights are respectively communicated with the master control platform, and the height of the fence is not less than 1.8m.

[0007] A status indicator light and an emergency stop button are provided on one side of the vertical three-axis machining center, a first camera is provided in the vertical three-axis machining center, a first zero-point positioning system is provided on the table of the vertical three-axis machining center, a fan is provided in the tool magazine of the vertical three-axis machining center, a second camera is provided at both ends of the fence and on one side of the fence, a second zero-point positioning system is provided in the material loading and unloading station, an L-shaped sheet metal plate is fixed on the top of the machine tool door and one side of the machine tool door of the vertical three-axis machining center, an oil mist collector is provided at the position on the top of the first zero-point positioning system on the vertical three-axis machining center, the status indicator light, the emergency stop button, the fan, the first camera, the second camera, the first zero-point positioning system, the second zero-point positioning system, and the oil mist collector are respectively communicated and connected with the master control platform, a display screen is provided on the master control platform, any number of vertical three-axis machining centers are electrically connected, a pallet is stored in the material bin, a number of threaded holes are opened at positions other than the four corners of the pallet surface, one side of four guard plates is fixed to the bottom of the pallet and the four guard plates are spliced ​​into a rectangle, and M8 countersunk bolts are stored in the material loading and unloading station.

[0008] The liquid supply system includes a liquid storage tank, which is connected to each vertical three-axis machining center through a liquid supply pipe, a liquid level sensor is arranged in the liquid storage tank, the liquid storage tank is connected to an aeration device through an air inlet pipe, the liquid storage tank is connected to a liquid distribution device through a liquid inlet pipe, one side of the liquid distribution device is connected to a water tank through a water inlet pipe, and the other side of the liquid distribution device is connected to a raw liquid cylinder through a liquid suction pipe, and a liquid level detector is arranged in the raw liquid cylinder; two pneumatic diaphragm pumps are arranged on the liquid supply pipe, an electromagnetic valve is arranged on the air inlet pipe, a first ball valve and a flow meter are arranged on the water inlet pipe, and a second ball valve is arranged on the liquid suction pipe. The liquid supply system also includes an electronic control system, the aeration device, the liquid distribution device, the pneumatic diaphragm pump, the electromagnetic valve, the first ball valve, the flow meter, the second ball valve, and the liquid level detector are respectively connected to the electronic control system for communication, and the liquid level sensor and the electronic control system are respectively connected to the master control platform for communication.

[0009] The spindle power of the vertical three-axis machining center is 16KW-18.5KW, the speed is 10000rpm-12000rpm, and the torque is 150N·m-161N·m.

[0010] The second technical solution adopted by the present invention is a method for processing an aviation machined part, comprising the following steps: Step 1: The robot fixes the machined parts on the pallet and sends them to the vertical three-axis machining center. The robot places the pallet on the first zero-point positioning system for positioning; Step 2: The master control platform starts the vertical three-axis machining center to align the machined parts, and at the same time starts the fluid supply system to send the cutting fluid to the vertical three-axis machining center. The machined parts are sprayed with cutting fluid, cooled, lubricated, cooled, and the chips are removed. After the machining is completed, the machined parts are rinsed with cutting fluid and the fans are used to dry the machined parts. Step 3: The robot delivers the machined parts to the material loading and unloading station and disassembles them. The robot inspects the machined parts and delivers the pallet to the material warehouse.

[0011] The second technical solution of the present invention is also characterized in that: Step 1 is implemented as follows: Step 1.1, the robot delivers the pallet to the material loading and unloading station, places four guard plates on the second zero-point positioning system, and positions the pallet through the second zero-point positioning system; Step 1.2, the robot opens a through hole at each of the four corners of the surface of the machined part, places the machined part on the top of the tray, and passes four M8 countersunk bolts through each through hole and fixes them in the corresponding threaded holes; In step 1.3, the robot delivers the pallet to the vertical three-axis machining center, places the four guard plates on the first zero-point positioning system, and positions the pallet through the first zero-point positioning system.

[0012] The main control platform starts the liquid supply system according to the following steps: Step a.1, the main control platform starts the electronic control system, the electronic control system starts the first ball valve and the flow meter, and the water in the water tank is sent to the liquid dispensing device through the water inlet pipe. The electronic control system starts the liquid dispensing device to extract the emulsion from the original liquid cylinder, and the extraction ratio of the emulsion and water is 1:10-100. The liquid dispensing device sends the emulsion and water to the liquid storage tank. The liquid level sensor is provided with a first liquid level limit and a second liquid level limit. When the liquid level sensor detects that the cutting fluid in the liquid storage tank is higher than the first liquid level limit, the electronic control system closes the first ball valve, the flow meter, the second ball valve and the liquid dispensing device. The liquid level detector is provided with a third liquid level limit and a fourth liquid level limit. When the liquid level detector detects that the liquid level in the original liquid cylinder is lower than the third liquid level limit, the electronic control system controls the robot to replenish the emulsion. When the liquid level in the original liquid cylinder is higher than the fourth liquid level limit, the replenishment of the emulsion is stopped; Step a.2: The electronic control system starts the aeration device and the solenoid valve, and injects air into the liquid storage tank every 0.5h-1h. Each injection time is 1min-2min, and each injection of air is 2m 3 -3m 3 , after the emulsion and water are fused, the electronic control system closes the solenoid valve and the aeration device; Step a.3, the electronic control system starts a pneumatic diaphragm pump to deliver the cutting fluid to each vertical three-axis machining center. When the running pneumatic diaphragm pump fails, the master control platform starts another pneumatic diaphragm pump. The pressure of the cutting fluid is 6Mpa-10Mpa, and the flow rate is 40L / min-60L / min.

[0013] The specific steps for aligning machine parts are as follows: Step b.1, the master control platform controls the probe of the vertical three-axis machining center to collect the height data of the four corners of the pallet, and determines whether the height difference between the four corners of the pallet is greater than 0.1mm. If the height difference is greater than 0.1mm, the vertical three-axis machining center alarms and stops, and the pallet is replaced by the robot, and the height data of the four corners of the pallet are collected again. The operation is repeated until the height difference of the four corners is less than 0.1mm; Step b.2, the master control platform controls the probe of the vertical three-axis machining center to collect the height data of the four corners of the machined part, and determines whether the height difference between the four corners of the machined part is greater than 0.1mm. If the height difference is not greater than 0.1mm, the z-axis of the machining coordinate system is established; if the height difference is greater than 0.1mm, the vertical three-axis machining center alarms and stops, and the robot replaces the pallet, and collects the height data of the four corners of the machined part again. The operation is repeated until the height difference at the four corners is less than 0.1mm, and the z-axis of the machining coordinate system is established; In step b.3, the probe collects height data on the side of the machined part. When the height difference is no more than 2 mm, the x-axis and y-axis of the machining coordinate system are established. When the height difference is more than 2 mm, the vertical three-axis machining center alarms and stops, and the probe feeds back the deviation value to the master control platform. The master control platform rotates the machining coordinate system according to the deviation value to complete automatic alignment of the probe.

[0014] The vertical three-axis machining center is equipped with static scheduling mode and dynamic scheduling mode. Static scheduling automatically schedules production according to the order in which machined parts are added. When new machined parts are added, the production scheduling is postponed, and the original scheduling order remains unchanged. When new emergency machined parts are added, the master control platform starts the dynamic scheduling mode. The vertical three-axis machining center sets an insertion point and readjusts the processing order of machined parts, inserts orders at the insertion point, and postpones other machined parts after the insertion point. The vertical three-axis machining center is also equipped with a manual mode. When the master control platform fails or loses network, the manual mode is started. The master control platform synchronously records various data during the machining process of machined parts. The data include: the production progress and processing time of each machined part, alarm information, the operating position of the robot, whether it is faulty, the number of pallets in the material bin, the start-up time, scheduling mode, whether it is running, whether it is emergency stopped, and processing time of a single vertical three-axis machining center When the vertical three-axis machining center is machining parts, the master control platform starts the first camera to monitor the operation status of the vertical three-axis machining center. When the vertical three-axis machining center fails or the processing is abnormal, the vertical three-axis machining center is controlled to stop running. The master control platform simultaneously starts the second camera to monitor the operation status of the robot in the fence. If a robot failure is found, the robot is stopped. The master control platform simultaneously starts the contact switch. When the safety door is opened during the operation of the robot, the contact switch is fed back to the master control platform. The master control platform controls the alarm light to sound an alarm and controls the robot to stop running. The master control platform simultaneously starts the oil mist collector to absorb mist. After all machined parts are processed, the master control platform shuts down the vertical three-axis machining center and controls the oil mist collector to complete the mist absorption work in 0s-30s.

[0015] The beneficial effects of the present invention are: The present invention selects a vertical three-axis machining center with a spindle power of 16KW-18.5KW, a rotation speed of 10000rpm-12000rpm, and a torque of 150N·m-161N·m to process machined parts. It is suitable for processing aluminum alloys, titanium alloys, and ultra-high strength steels, and realizes that CNC equipment is effectively compatible with processing non-ferrous metals and ferrous metals, and finds a balance point in processing capabilities between different materials. The machining efficiency of machined parts is 1.2-1.5 times that of traditional equipment, and at the same time, it can ensure the replacement of machined parts during the processing process; the robot is controlled by the master control platform to perform pallet picking, loading, unloading, and feeding , high efficiency; static mode and dynamic mode are selected as needed for production scheduling, which is highly practical; the liquid is centrally supplied through the liquid supply system, which can automatically dilute the cutting fluid and automatically adjust the cutting fluid ratio. The ratio is stable, accurate and efficient. The cutting fluid is automatically added to the machine tool without manual mixing and delivery of the cutting fluid, reducing the difficulty of operation and the labor intensity of the operator; the pressure of the cutting fluid is 6Mpa-10Mpa, and the flow rate is 40L / min-60L / min. The cutting fluid can be fully added at any time without checking the loss of the cutting fluid, eliminating the labor and emulsion waste caused by manual refilling, ensuring the continuous production, and adding The heat of cutting during operation will be immediately taken away by the cutting fluid, the surface of the machined parts and the tool surface can be cooled in time, the deformation of the machined parts is small, which is beneficial to improve the surface quality of the machined parts and reduce tool wear. During processing, waste chips are immediately washed away with high pressure to avoid chip accumulation and squeeze the machined parts, avoid chip accumulation and squeeze the tool, and reduce abnormal tool loss; the top of the vertical three-axis machining is enclosed and protected by an L-shaped sheet metal plate, and is equipped with an oil mist collector to ensure that the oil mist generated by the ring spray cutting fluid is collected synchronously, and the air purification of the processing area is completed within 30 seconds of the spindle shutdown, quickly eliminating environmental pollution and effectively reducing potential health damage to workers; M8 countersunk bolts are used to clamp the machined parts , effectively reducing the blank space occupied by countersunk bolts and reducing blank material consumption; any number of vertical three-axis machining centers can be selected at any time to freely form a line, realizing any combination of single-machine offline and online processing, ensuring the flexibility of the production line, and one person can operate multiple machines when necessary; the master control platform can record the processing time of machined parts in real time, make the data explicit, and use big data for analysis and optimization, which is convenient for planning and scheduling and iterative updates, reducing downtime waiting time during production, and effectively improving equipment utilization; the first camera and the second camera can be used to monitor the operating status of the vertical three-axis machining center and the robot in the fence in real time, and timely intervention can be made if a fault occurs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the present invention; Figure 2 It is a structural diagram of the fence in the present invention; Figure 3 It is a connection structure diagram of the neutral three-axis machining center of the present invention; Figure 4It is a structural diagram of the tray in the present invention; Figure 5 It is a structural diagram of the first zero point positioning system in the present invention; Figure 6 It is a structural diagram of the liquid supply system in the present invention; Figure 7 It is an installation diagram of the second zero point positioning system, the tray, and the machined parts in the present invention; Figure 8 It is a production flow chart of the present invention.

[0017] In the figure, 1. guide rail, 2. robot, 3. fence, 31. steel pipe, 32. steel net, 33. safety door, 34. contact switch, 35. alarm light, 36. second camera, 4. vertical three-axis machining center, 41. status indicator light, 42. emergency stop button, 43. first camera, 44. fan, 45. tool magazine, 46. first zero point positioning system, 47. machine tool door, 5. master control platform, 51. display screen, 6. power distribution cabinet, 7. material loading and unloading station, 71. M8 countersunk bolt, 8. material bin, 81. tray, 82. thread Hole, 83. Guard plate, 9. Liquid supply system, 91. Liquid storage tank, 92. Liquid level sensor, 93. Aeration device, 94. Electronic control system, 95. Liquid distribution device, 96. Water tank, 97. Original liquid cylinder, 98. Liquid level detector, 10. Liquid supply pipe, 101. Pneumatic diaphragm pump, 11. Second zero point positioning system, 12. Air inlet pipe, 121. Solenoid valve, 13. Liquid inlet pipe, 14. Water inlet pipe, 141. First ball valve, 142. Flow meter, 15. L-type sheet metal plate, 16. Oil mist collector, 17. Suction pipe, 171. Second ball valve. DETAILED DESCRIPTION

[0018] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] Flexible processing production line for aviation machined parts, refer to Figure 1 , including a guide rail 1, a robot 2 is arranged on the guide rail 1, a fence 3 is arranged around the guide rail 1, material bins 8 are arranged on the outside of both sides of the fence 3, and a number of vertical three-axis machining centers 4 are arranged side by side along the extension direction of the fence 3 on one side of the material bin 8, a general control platform 5 is arranged on the outside of one end of the fence 3 close to the material bin 8, material loading and unloading stations 7 are arranged on both sides of the general control platform 5, and a power distribution cabinet 6 is arranged on the outside of one side of the fence 3; a liquid supply system 9 is arranged on the outside of one end of the fence 3 away from the material bin 8, and the liquid supply system 9 is connected to each vertical three-axis machining center 4 through a liquid supply pipe 10, and the liquid supply system 9, the robot 2, and the vertical three-axis machining center 4 are respectively connected to the general control platform 5 for communication, and the general control platform 5 is electrically connected to the power distribution cabinet 6.

[0020] Reference Figure 2The fence 3 includes a number of equally spaced steel pipes 31, steel meshes 32 are connected between adjacent steel pipes 31, safety doors 33 are provided on the steel meshes 32, contact switches 34 and alarm lights 35 are provided on the safety doors 33, and the contact switches 34 and alarm lights 35 are respectively connected to the master control platform 5 for communication. The height of the fence 3 is not less than 1.8m, which can prevent other personnel from mistakenly entering the fence 3 when the robot 2 is working. Figure 3 A status indicator light 41 and an emergency stop button 42 are provided on one side of the vertical three-axis machining center 4, a first camera 43 is provided in the vertical three-axis machining center 4, a first zero-point positioning system 46 is provided on the table of the vertical three-axis machining center 4, a fan 44 is provided in the tool magazine 45 of the vertical three-axis machining center 4, and the fan 44 is managed according to a tool, which is taken out from the tool magazine 45 when in use and stored in the tool position of the tool magazine 45 when not in use, a second camera 36 is provided at each end of the fence 3 and on one side of the fence 3, a second zero-point positioning system 11 is provided in the material loading and unloading station 7, and a machine tool door 47 of the vertical three-axis machining center 4 is provided on the top The L-shaped sheet metal plate 15 is fixed to the part and one side of the machine tool door 47. The L-shaped sheet metal plate 15 can prevent the cutting fluid from splashing outside the vertical three-axis machining center 4. An oil mist collector 16 is arranged at the top of the first zero point positioning system 46 on the vertical three-axis machining center 4. The status indicator 41, the emergency stop button 42, the fan 44, the first camera 43, the second camera 36, ​​the first zero point positioning system 46, the second zero point positioning system 11, and the oil mist collector 16 are respectively connected to the master control platform 5 for communication. The master control platform 5 is provided with a display screen 51. Any number of vertical three-axis machining centers 4 are electrically connected. Figure 4 A tray 81 is stored in the material bin 8, and a plurality of threaded holes 82 are provided on the surface of the tray 81 other than the four corners. Four guard plates 83 are fixed to one side of the bottom of the tray 81, and the four guard plates 83 are spliced ​​into a rectangle. The guard plates 83 can prevent waste chips from entering the zero-point positioning system during machining of machined parts. The material loading and unloading station 7 stores M8 countersunk bolts 71.

[0021] Reference Figure 6The liquid supply system 9 includes a liquid storage tank 91, which is connected to each vertical three-axis machining center 4 through a liquid supply pipe 10. A liquid level sensor 92 is arranged in the liquid storage tank 91. The liquid level sensor 92 can transmit the liquid level information of the liquid storage tank 91 to the master control platform 5 in real time. The liquid storage tank 91 is connected to an aeration device 93 through an air inlet pipe 12. The aeration device 93 can inject compressed air into the liquid storage tank 91 to make the liquid in the liquid storage tank 91 flow quickly, so that the emulsion and water are fully integrated to prevent precipitation from forming when not used for a long time, resulting in uneven cutting fluid concentration; the liquid storage tank 91 is connected to a liquid distribution device 95 through a liquid inlet pipe 13, one side of the liquid distribution device 95 is connected to a water tank 96 through a water inlet pipe 14, and the other side of the liquid distribution device 95 is connected to a raw liquid cylinder 97 through a liquid suction pipe 17, and a liquid level detector 98 is arranged in the raw liquid cylinder 97; supply Two pneumatic diaphragm pumps 101 are arranged on the liquid pipe 10. When working normally, the master control platform 5 starts one pneumatic diaphragm pump 101. When the working pneumatic diaphragm pump 101 fails, the master control platform 5 starts the other pneumatic diaphragm pump 101; a solenoid valve 121 is arranged on the air inlet pipe 12, and the solenoid valve 121 can control the on and off of compressed air and the air intake rate. A first ball valve 141 and a flow meter 142 are arranged on the water inlet pipe 14, and a second ball valve 171 is arranged on the liquid suction pipe 17. The liquid supply system 9 also includes an electronic control system 94, an aeration device 93, a liquid distribution device 95, a pneumatic diaphragm pump 101, a solenoid valve 121, a first ball valve 141, a flow meter 142, a second ball valve 171, and a liquid level detector 98 are respectively connected to the electronic control system 94 for communication, and the liquid level sensor 92 and the electronic control system 94 are respectively connected to the master control platform 5 for communication.

[0022] The spindle power of the vertical three-axis machining center 4 is 16KW-18.5KW, the speed is 10000rpm-12000rpm, and the torque is 150N·m-161N·m. It is suitable for processing aluminum alloys, titanium alloys, and ultra-high-strength steels. It can find a balance between processing capabilities of different materials and ensure the changeover of machined parts during the processing.

[0023] The processing method of aviation machined parts comprises the following steps: Step 1: Reference Figure 7 , the robot 2 delivers the pallet 81 to the material loading and unloading station 7, places the four guard plates 83 on the second zero-point positioning system 11, and positions the pallet 81 through the second zero-point positioning system 11. The robot 2 opens a through hole at each of the four corners of the surface of the machined part, places the machined part on the top of the pallet 81, and passes four M8 countersunk bolts 71 through a through hole and fixes them in the corresponding threaded holes 82. The robot 2 delivers the pallet 81 to the vertical three-axis machining center 4, places the four guard plates 83 on the first zero-point positioning system 46, and positions the pallet 81 through the first zero-point positioning system 46; Step 2: The master control platform 5 controls the probe of the vertical three-axis machining center 4 to collect the height data of the four corners of the tray 81, and determines whether the height difference between the four corners of the tray 81 is greater than 0.1mm. If the height difference is greater than 0.1mm, the vertical three-axis machining center 4 alarms and stops, and the robot 2 replaces the tray 81, and collects the height data of the four corners of the tray 81 again. The operation is repeated until the height difference at the four corners is less than 0.1mm; the master control platform 5 controls the probe of the vertical three-axis machining center 4 to collect the height data of the four corners of the machined parts, and determines whether the height difference between the four corners of the machined parts is greater than 0.1mm. If the height difference is not If the height difference is greater than 0.1mm, the z-axis of the machining coordinate system is established; if the height difference is greater than 0.1mm, the vertical three-axis machining center 4 alarms and stops, and the robot 2 replaces the pallet 81 to collect the height data of the four corners of the machined part again, and repeats the operation until the height difference at the four corners is less than 0.1mm, and the z-axis of the machining coordinate system is established; the probe collects height data on the side of the machined part, and when the height difference is not greater than 2mm, the x-axis and y-axis of the machining coordinate system are established; when the height difference is greater than 2mm, the vertical three-axis machining center 4 alarms and stops, and the probe feeds the deviation value back to the master control platform 5, and the master control platform 5 performs machining coordinate according to the deviation value. The system rotates to complete the automatic alignment of the probe; the main control platform 5 starts the electronic control system 94, the electronic control system 94 starts the first ball valve 141 and the flow meter 142, and the water in the water tank 96 is sent to the liquid distribution device 95 through the water inlet pipe 14. The electronic control system 94 starts the liquid distribution device 95 to extract the emulsion from the original liquid cylinder 97. The extraction ratio of the emulsion and water is 1:10-100. The liquid distribution device 95 sends the emulsion and water to the liquid storage tank 91. The liquid level sensor 92 is provided with a first liquid level limit and a second liquid level limit. When the liquid level sensor 92 detects that the cutting fluid in the liquid storage tank 91 is higher than the first liquid level limit, the electronic control The system 94 closes the first ball valve 141, the flow meter 142, the second ball valve 171 and the liquid dispensing device 95. The liquid level detector 98 is provided with a third liquid level limit and a fourth liquid level limit. When the liquid level detector 98 detects that the liquid level in the original liquid cylinder 97 is lower than the third liquid level limit, the electronic control system 94 controls the robot 2 to replenish the emulsion. When the liquid level in the original liquid cylinder 97 is higher than the fourth liquid level limit, the replenishment of the emulsion is stopped. The electronic control system 94 starts the aeration device 93 and the solenoid valve 121 to inject air into the liquid storage tank 91 every 0.5h-1h. Each injection time is 1min-2min, and each injection of air is 2m 3 -3m 3After the emulsion and water are fused, the electronic control system 94 closes the electromagnetic valve 121 and the aeration device 93. The electronic control system 94 starts a pneumatic diaphragm pump 101 to deliver the cutting fluid to each vertical three-axis machining center 4. When the running pneumatic diaphragm pump 101 fails, the master control platform 5 starts another pneumatic diaphragm pump 101. The pressure of the cutting fluid is 6Mpa-10Mpa, and the flow rate is 40L / min-60L / min. The master control platform 5 controls the vertical three-axis machining center 4 to spray cutting fluid on the machined parts, cool the machined parts, lubricate the machined parts, cool the tools, and remove the accumulated chips. After the machining is completed, the cutting fluid is used to flush the machine. Add parts and call fan 44 to blow dry the added parts; the vertical three-axis machining center 4 is provided with a static scheduling mode and a dynamic scheduling mode. The static scheduling is automatically scheduled according to the order in which the machined parts are added. When new machined parts are added, the scheduling is postponed, and the original scheduling order remains unchanged; when an emergency machined part is added, the master control platform 5 starts the dynamic scheduling mode, the vertical three-axis machining center 4 sets an insertion point and readjusts the machining order of the machined parts, inserts the order at the insertion point, and postpones other machined parts after the insertion point; the vertical three-axis machining center 4 is also provided with a manual mode. When the master control platform 5 fails or is disconnected from the network, the manual mode is started; the master control platform 5 is in the process of machining the machined parts Various types of data are recorded synchronously, including: the production progress and processing time of each machined part, alarm information, the operating position of the robot 2, whether it is faulty, the number of pallets 81 in the material bin 8, the start-up time of a single vertical three-axis machining center 4, the production scheduling mode, whether it is running, whether it is emergency stopped, the processing time, the start-up rate, the spindle speed, the number of machined parts processed, and whether it is faulty; when the vertical three-axis machining center 4 is machining machined parts, the master control platform 5 starts the first camera 43 to monitor the operating status of the vertical three-axis machining center 4. When the vertical three-axis machining center 4 fails or the processing is abnormal, the vertical three-axis machining center 4 is controlled to stop. The main control platform 5 starts the second camera 36 to monitor the operation status of the robot 2 in the fence 3. If a fault is found in the robot 2, the robot 2 stops working. The main control platform 5 starts the contact switch 34 at the same time. When the safety door 33 is opened during the operation of the robot 2, the contact switch 34 is fed back to the main control platform 5. The main control platform 5 controls the alarm light 35 to sound an alarm and controls the robot 2 to stop running. The main control platform 5 starts the oil mist collector 16 to absorb mist at the same time. After all the machined parts are processed, the main control platform 5 turns off the vertical three-axis machining center 4 and controls the oil mist collector 16 to complete the mist absorption work in 0s-30s. Step 3: The robot 2 delivers the machined parts to the material loading and unloading station 7 and disassembles them. The robot 2 inspects the machined parts and delivers the pallet 81 to the material warehouse 8.

[0024] When the vertical three-axis machining center 4 processes multiple different types of machined parts at the same time and there are a large number of insertion orders, the vertical three-axis machining center 4 can be grouped: one part of the vertical three-axis machining center 4 processes titanium alloy and is equipped with corresponding tools; one part of the vertical three-axis machining center 4 processes aluminum alloy and ultra-strength steel, and is equipped with corresponding tools; one part of the vertical three-axis machining center 4 is used for insertion orders, while taking into account the processing of other machined parts, and is equipped with corresponding tools; it can reduce the debugging time and frequency of the vertical three-axis machining center 4, reduce data bands, and save the time for changing tools.

[0025] The master control platform 5 synchronously records various data during the machining process, which can facilitate the workload evaluation and resource demand evaluation of the vertical three-axis machining center 4. By counting the machining time and start-up time of the vertical three-axis machining center 4, the equipment utilization rate can be effectively judged, and the cutting time, number of equipment, number of tools, and cutting fluid consumption required for machining machined parts can be evaluated according to the production schedule; if the machining time of two identical machined parts on the same vertical three-axis machining center 4 is very different, the quality of the CNC program compilation can be judged, and the master control platform 5 can be adjusted accordingly. Embodiment 1: The flexible processing production line of aviation machined parts comprises a guide rail 1, a robot 2 is arranged on the guide rail 1, a fence 3 is arranged around the guide rail 1, material bins 8 are arranged on the outer sides of the fence 3, 6 vertical three-axis machining centers 4 are arranged side by side along the extension direction of the fence 3 on one side of the material bin 8, a master control platform 5 is arranged on the outer side of one end of the fence 3 close to the material bin 8, material loading and unloading stations 7 are arranged on both sides of the master control platform 5, and a power distribution cabinet 6 is arranged on the outer side of one side of the fence 3; a liquid supply system 9 is arranged on the outer side of one end of the fence 3 away from the material bin 8, and the liquid supply system 9 is connected to each vertical three-axis machining center 4 through a liquid supply pipe 10. The liquid supply system 9, the robot 2, and the vertical three-axis machining center 4 are respectively connected to the master control platform 5 for communication. The master control platform 5 is electrically connected to the power distribution cabinet 6. The fence 3 includes 200 equally spaced steel pipes 31. Steel meshes 32 are connected between adjacent steel pipes 31. Safety doors 33 are provided on four steel meshes 32. Contact switches 34 and alarm lights 35 are provided on the safety doors 33. The contact switches 34 and the alarm lights 35 are respectively connected to the master control platform 5 for communication. The height of the fence 3 is 2.5 m. The spindle power of the vertical three-axis machining center 4 is 16 kW, the rotation speed is 10,000 rpm, and the torque is 150 N·m.

[0026] Embodiment 2: The flexible processing production line for aviation machined parts includes a guide rail 1, a robot 2 is arranged on the guide rail 1, a fence 3 is arranged around the guide rail 1, material bins 8 are arranged on the outer sides of the fence 3, 7 vertical three-axis machining centers 4 are arranged side by side along the extension direction of the fence 3 on one side of the material bin 8, a master control platform 5 is arranged on the outer side of one end of the fence 3 close to the material bin 8, material loading and unloading stations 7 are arranged on both sides of the master control platform 5, and a power distribution cabinet 6 is arranged on the outer side of one side of the fence 3; a liquid supply system 9 is arranged on the outer side of the end of the fence 3 away from the material bin 8, and the liquid supply system 9 is connected to the material bin 8 through a liquid supply pipe 10. The vertical three-axis machining center 4 is respectively connected to each vertical three-axis machining center 4, and the liquid supply system 9, the robot 2, and the vertical three-axis machining center 4 are respectively connected to the master control platform 5 for communication, and the master control platform 5 is electrically connected to the power distribution cabinet 6; a status indicator light 41 and an emergency stop button 42 are arranged on one side of the vertical three-axis machining center 4, a first camera 43 is arranged in the vertical three-axis machining center 4, a first zero point positioning system 46 is arranged on the table of the vertical three-axis machining center 4, a fan 44 is arranged in the tool magazine 45 of the vertical three-axis machining center 4, and a second The camera 36, ​​a second zero-point positioning system 11 is arranged in the material loading and unloading station 7, an L-shaped sheet metal plate 15 is fixed to the top of the machine tool door 47 of the vertical three-axis machining center 4 and one side of the machine tool door 47, an oil mist collector 16 is arranged at the top of the first zero-point positioning system 46 on the vertical three-axis machining center 4, a status indicator 41, an emergency stop button 42, a fan 44, a first camera 43, a second camera 36, ​​a first zero-point positioning system 46, a second zero-point positioning system 11, and an oil mist collector 16 are respectively connected to the master control platform 5 for communication, A display screen 51 is provided on the master control platform 5, three of the vertical three-axis machining centers 4 are electrically connected to each other, and the other four vertical three-axis machining centers 4 are electrically connected to each other. A tray 81 is stored in the material bin 8, and 255 threaded holes 82 are opened at positions other than the four corners of the surface of the tray 81. One side of four guard plates 83 are fixed to the bottom of the tray 81, and the four guard plates 83 are spliced ​​into a rectangle. M8 countersunk bolts 71 are stored in the material loading and unloading station 7. The spindle power of the vertical three-axis machining center 4 is 17KW, the speed is 11000rpm, and the torque is 155N·m.

[0027] Embodiment 3: The flexible processing production line for aviation machined parts includes a guide rail 1, a robot 2 is arranged on the guide rail 1, a fence 3 is arranged around the guide rail 1, a material bin 8 is arranged on the outer side of each side of the fence 3, and 8 vertical three-axis machining centers 4 are arranged side by side along the extension direction of the fence 3 on one side of the material bin 8, a master control platform 5 is arranged on the outer side of one end of the fence 3 close to the material bin 8, and material loading and unloading stations 7 are arranged on both sides of the master control platform 5, and a power distribution cabinet 6 is arranged on the outer side of one side of the fence 3; a material loading and unloading station 7 is arranged on the outer side of the end of the fence 3 away from the material bin 8. There is a liquid supply system 9, which is connected to each vertical three-axis machining center 4 through a liquid supply pipe 10. The liquid supply system 9, the robot 2, and the vertical three-axis machining center 4 are respectively connected to the master control platform 5 for communication, and the master control platform 5 is electrically connected to the power distribution cabinet 6; the liquid supply system 9 includes a liquid storage tank 91, which is connected to each vertical three-axis machining center 4 through a liquid supply pipe 10, a liquid level sensor 92 is arranged in the liquid storage tank 91, and the liquid storage tank 91 is connected to an aeration device 93 through an air inlet pipe 12 The liquid storage tank 91 is connected to a liquid dispensing device 95 through a liquid inlet pipe 13, one side of the liquid dispensing device 95 is connected to a water tank 96 through a water inlet pipe 14, and the other side of the liquid dispensing device 95 is connected to a raw liquid cylinder 97 through a liquid suction pipe 17, and a liquid level detector 98 is provided in the raw liquid cylinder 97; two pneumatic diaphragm pumps 101 are provided on the liquid supply pipe 10, a solenoid valve 121 is provided on the air inlet pipe 12, a first ball valve 141 and a flow meter 142 are provided on the water inlet pipe 14, and a second ball valve 101 is provided on the liquid suction pipe 17. 71, the liquid supply system 9 also includes an electronic control system 94, an aeration device 93, a liquid distribution device 95, a pneumatic diaphragm pump 101, a solenoid valve 121, a first ball valve 141, a flow meter 142, a second ball valve 171, and a liquid level detector 98 are respectively communicated with the electronic control system 94, and the liquid level sensor 92 and the electronic control system 94 are respectively communicated with the master control platform 5. The spindle power of the vertical three-axis machining center 4 is 18.5KW, the speed is 12000rpm, and the torque is 161N·m.

[0028] Embodiment 4: The flexible processing production line for aviation machined parts comprises a guide rail 1, a robot 2 is arranged on the guide rail 1, a fence 3 is arranged around the guide rail 1, material bins 8 are arranged on the outer sides of the fence 3, 9 vertical three-axis machining centers 4 are arranged side by side along the extension direction of the fence 3 on one side of the material bin 8, a master control platform 5 is arranged on the outer side of one end of the fence 3 close to the material bin 8, material loading and unloading stations 7 are arranged on both sides of the master control platform 5, and a power distribution cabinet 6 is arranged on the outer side of one side of the fence 3; a liquid supply system 9 is arranged on the outer side of one end of the fence 3 away from the material bin 8, and the liquid supply system 9 is respectively connected to each vertical three-axis machining center through a liquid supply pipe 10. The hydraulic core 4 is connected, the fluid supply system 9, the robot 2, and the vertical three-axis machining center 4 are respectively connected to the master control platform 5 for communication, and the master control platform 5 is electrically connected to the power distribution cabinet 6; the fence 3 includes 150 equally spaced steel pipes 31, and steel nets 32 are connected between adjacent steel pipes 31. Safety doors 33 are arranged on the three steel nets 32, and contact switches 34 and alarm lights 35 are arranged on the safety doors 33. The contact switches 34 and the alarm lights 35 are respectively connected to the master control platform 5 for communication, and the height of the fence 3 is 1.8m. A status indicator light 41 and an emergency stop button 42 are arranged on one side of the vertical three-axis machining center 4. A first camera 43 is provided in the machining center 4, a first zero-point positioning system 46 is provided on the table of the vertical three-axis machining center 4, a fan 44 is provided in the tool magazine 45 of the vertical three-axis machining center 4, a second camera 36 is provided at both ends of the fence 3 and one side of the fence 3, a second zero-point positioning system 11 is provided in the material loading and unloading station 7, an L-shaped sheet metal plate 15 is fixed to the top of the machine tool door 47 of the vertical three-axis machining center 4 and one side of the machine tool door 47, an oil mist collector 16 is provided at the top of the first zero-point positioning system 46 on the vertical three-axis machining center 4, and a status indicator 41 , emergency stop button 42, fan 44, first camera 43, second camera 36, ​​first zero-point positioning system 46, second zero-point positioning system 11, and oil mist collector 16 are respectively communicated with the master control platform 5, a display screen 51 is provided on the master control platform 5, any number of vertical three-axis machining centers 4 are electrically connected, a pallet 81 is stored in the material bin 8, 216 threaded holes 82 are provided on the surface of the pallet 81 other than the four corners, one side of four guard plates 83 are fixed to the bottom of the pallet 81, and the four guard plates 83 are spliced ​​into a rectangle, and M8 countersunk bolts 71 are stored in the material loading and unloading station 7.

[0029] The liquid supply system 9 includes a liquid storage tank 91, which is connected to each vertical three-axis machining center 4 through a liquid supply pipe 10. A liquid level sensor 92 is arranged in the liquid storage tank 91. The liquid storage tank 91 is connected to an aeration device 93 through an air inlet pipe 12. The liquid storage tank 91 is connected to a liquid dispensing device 95 through a liquid inlet pipe 13. One side of the liquid dispensing device 95 is connected to a water tank 96 through a water inlet pipe 14. The other side of the liquid dispensing device 95 is connected to a raw liquid cylinder 97 through a liquid suction pipe 17. A liquid level detector 98 is arranged in the raw liquid cylinder 97. Two air supply pipes 10 are arranged. A pneumatic diaphragm pump 101, an electromagnetic valve 121 is provided on the air inlet pipe 12, a first ball valve 141 and a flow meter 142 are provided on the water inlet pipe 14, a second ball valve 171 is provided on the liquid suction pipe 17, the liquid supply system 9 also includes an electronic control system 94, an aeration device 93, a liquid distribution device 95, a pneumatic diaphragm pump 101, a solenoid valve 121, a first ball valve 141, a flow meter 142, a second ball valve 171, and a liquid level detector 98 are respectively communicated with the electronic control system 94, and the liquid level sensor 92 and the electronic control system 94 are respectively communicated with the master control platform 5.

[0030] Embodiment 5: The processing method of aviation machined parts comprises the following steps: Step 1: The robot 2 delivers the pallet 81 to the material loading and unloading station 7, places four guard plates 83 on the second zero-point positioning system 11, and positions the pallet 81 through the second zero-point positioning system 11. The robot 2 opens a through hole at each of the four corners of the surface of the machined part, places the machined part on the top of the pallet 81, and passes four M8 countersunk bolts 71 through a through hole and fixes them in the corresponding threaded holes 82. The robot 2 delivers the pallet 81 to the vertical three-axis machining center 4, places the four guard plates 83 on the first zero-point positioning system 46, and positions the pallet 81 through the first zero-point positioning system 46; Step 2: The master control platform 5 controls the probe of the vertical three-axis machining center 4 to collect the height data of the four corners of the tray 81, and determines whether the height difference between the four corners of the tray 81 is greater than 0.1mm. If the height difference is greater than 0.1mm, the vertical three-axis machining center 4 alarms and stops, and the robot 2 replaces the tray 81, and collects the height data of the four corners of the tray 81 again. Repeat the operation until the height difference at the four corners is less than 0.1mm; the master control platform 5 controls the probe of the vertical three-axis machining center 4 to collect the height data of the four corners of the machined parts, and determines whether the height difference between the four corners of the machined parts is greater than 0.1mm. If the height difference is greater than 0.1mm, the vertical three-axis machining center 4 alarms and stops. The robot 2 replaces the tray 81, and collects the height data of the four corners of the tray 81 again. Repeat the operation until the height difference at the four corners is less than 0.1mm. When the height difference is not greater than 0.1mm, the z-axis of the machining coordinate system is established; if the height difference is greater than 0.1mm, the vertical three-axis machining center 4 alarms and stops, and the robot 2 replaces the pallet 81 to collect the height data of the four corners of the machined part again, and repeats the operation until the height difference at the four corners is less than 0.1mm, and the z-axis of the machining coordinate system is established; the probe collects height data on the side of the machined part, and when the height difference is not greater than 2mm, the x-axis and y-axis of the machining coordinate system are established; when the height difference is greater than 2mm, the vertical three-axis machining center 4 alarms and stops, and the probe feeds the deviation value back to the master control platform 5, and the master control platform 5 calculates the deviation value based on the deviation value. The machining coordinate system is rotated to complete the automatic alignment of the probe; the main control platform 5 starts the electronic control system 94, the electronic control system 94 starts the first ball valve 141 and the flow meter 142, and the water in the water tank 96 is sent to the liquid distribution device 95 through the water inlet pipe 14. The electronic control system 94 starts the liquid distribution device 95 to extract the emulsion from the original liquid cylinder 97. The extraction ratio of the emulsion and water is 1:10. The liquid distribution device 95 sends the emulsion and water to the liquid storage tank 91. The liquid level sensor 92 is provided with a first liquid level limit and a second liquid level limit. When the liquid level sensor 92 detects that the cutting fluid in the liquid storage tank 91 is higher than the first liquid level limit When the liquid level in the original liquid cylinder 97 is lower than the third liquid level limit, the electronic control system 94 controls the robot 2 to replenish the emulsion. When the liquid level in the original liquid cylinder 97 is higher than the fourth liquid level limit, the electronic control system 94 starts the aeration device 93 and the electromagnetic valve 121 to inject air into the liquid storage tank 91 every 0.5h. Each injection time is 1min and 2m of air is injected each time. 3After the emulsion and water are fused, the electronic control system 94 closes the electromagnetic valve 121 and the aeration device 93. The electronic control system 94 starts a pneumatic diaphragm pump 101 to deliver the cutting fluid to each vertical three-axis machining center 4. When the running pneumatic diaphragm pump 101 fails, the master control platform 5 starts another pneumatic diaphragm pump 101. The pressure of the cutting fluid is 6Mpa and the flow rate is 40L / min. The master control platform 5 controls the vertical three-axis machining center 4 to spray the cutting fluid on the machined parts in turn, cool the machined parts, lubricate the machined parts, cool the tools, and remove the accumulated chips. After the machining is completed, the machined parts are flushed with the cutting fluid and the fan is called 44 Drying machine parts; the vertical three-axis machining center 4 is provided with a static production scheduling mode and a dynamic production scheduling mode. The static production scheduling is automatically scheduled according to the order in which machined parts are added. When new machined parts are added, the production scheduling is postponed, and the original production scheduling order remains unchanged; when new emergency machined parts are added, the master control platform 5 starts the dynamic production scheduling mode, the vertical three-axis machining center 4 sets an insertion point and readjusts the machining order of machined parts, inserts orders at the insertion point, and postpones other machined parts after the insertion point; the vertical three-axis machining center 4 is also provided with a manual mode. When the master control platform 5 fails or loses network, the manual mode is started; the master control platform 5 is in the process of machining machined parts All kinds of data are recorded synchronously, including: the production progress and processing time of each machined part, alarm information, the operating position of the robot 2, whether it is faulty, the number of pallets 81 in the material bin 8, the start-up time, production scheduling mode, whether it is running, whether it is emergency stopped, processing time, start-up rate, spindle speed, the number of machined parts processed, and whether it is faulty of a single vertical three-axis machining center 4; when the vertical three-axis machining center 4 is machining machined parts, the master control platform 5 starts the first camera 43 to monitor the operating status of the vertical three-axis machining center 4. When the vertical three-axis machining center 4 fails or the processing is abnormal, the vertical three-axis machining center 4 is controlled. The three-axis machining center 4 stops running, and the master control platform 5 simultaneously starts the second camera 36 to monitor the running status of the robot 2 in the fence 3. If a fault is found in the robot 2, the robot 2 stops working. The master control platform 5 simultaneously starts the contact switch 34. When the safety door 33 is opened during the working process of the robot 2, the contact switch 34 is fed back to the master control platform 5. The master control platform 5 controls the alarm light 35 to sound an alarm, and controls the robot 2 to stop running. The master control platform 5 simultaneously starts the oil mist collector 16 to absorb mist. After all the machined parts are processed, the master control platform 5 closes the vertical three-axis machining center 4 and the oil mist collector 16. Step 3: The robot 2 delivers the machined parts to the material loading and unloading station 7 and disassembles them. The robot 2 inspects the machined parts and delivers the pallet 81 to the material warehouse 8.

[0031] Embodiment 6: The processing method of aviation machined parts comprises the following steps: Step 1: The robot 2 delivers the pallet 81 to the material loading and unloading station 7, places four guard plates 83 on the second zero-point positioning system 11, and positions the pallet 81 through the second zero-point positioning system 11. The robot 2 opens a through hole at each of the four corners of the surface of the machined part, places the machined part on the top of the pallet 81, and passes four M8 countersunk bolts 71 through a through hole and fixes them in the corresponding threaded holes 82. The robot 2 delivers the pallet 81 to the vertical three-axis machining center 4, places the four guard plates 83 on the first zero-point positioning system 46, and positions the pallet 81 through the first zero-point positioning system 46; Step 2: The master control platform 5 controls the probe of the vertical three-axis machining center 4 to collect the height data of the four corners of the tray 81, and determines whether the height difference between the four corners of the tray 81 is greater than 0.1mm. If the height difference is greater than 0.1mm, the vertical three-axis machining center 4 alarms and stops, and the robot 2 replaces the tray 81, and collects the height data of the four corners of the tray 81 again. Repeat the operation until the height difference at the four corners is less than 0.1mm; the master control platform 5 controls the probe of the vertical three-axis machining center 4 to collect the height data of the four corners of the machined parts, and determines whether the height difference between the four corners of the machined parts is greater than 0.1mm. If the height difference is greater than 0.1mm, the vertical three-axis machining center 4 alarms and stops. The robot 2 replaces the tray 81, and collects the height data of the four corners of the tray 81 again. Repeat the operation until the height difference at the four corners is less than 0.1mm. If the height difference is not greater than 0.1mm, the z-axis of the machining coordinate system is established; if the height difference is greater than 0.1mm, the vertical three-axis machining center 4 alarms and stops, and the robot 2 replaces the pallet 81 to collect the height data of the four corners of the machined part again, and repeats the operation until the height difference at the four corners is less than 0.1mm, and the z-axis of the machining coordinate system is established; the probe collects height data on the side of the machined part, and when the height difference is not greater than 2mm, the x-axis and y-axis of the machining coordinate system are established; when the height difference is greater than 2mm, the vertical three-axis machining center 4 alarms and stops, and the probe feeds the deviation value back to the master control platform 5, and the master control platform 5 performs adjustment according to the deviation value. The work coordinate system rotates to complete the automatic alignment of the probe; the main control platform 5 starts the electronic control system 94, the electronic control system 94 starts the first ball valve 141 and the flow meter 142, and the water in the water tank 96 is sent to the liquid distribution device 95 through the water inlet pipe 14. The electronic control system 94 starts the liquid distribution device 95 to extract the emulsion from the original liquid cylinder 97. The extraction ratio of the emulsion and water is 1:55. The liquid distribution device 95 sends the emulsion and water to the liquid storage tank 91. The liquid level sensor 92 is provided with a first liquid level limit and a second liquid level limit. When the liquid level sensor 92 detects that the cutting fluid in the liquid storage tank 91 is higher than the first liquid level limit, the ... The electronic control system 94 closes the first ball valve 141, the flow meter 142, the second ball valve 171 and the liquid dispensing device 95. The liquid level detector 98 is provided with a third liquid level limit and a fourth liquid level limit. When the liquid level detector 98 detects that the liquid level in the original liquid cylinder 97 is lower than the third liquid level limit, the electronic control system 94 controls the robot 2 to replenish the emulsion. When the liquid level in the original liquid cylinder 97 is higher than the fourth liquid level limit, the replenishment of the emulsion is stopped. The electronic control system 94 starts the aeration device 93 and the solenoid valve 121 to inject air into the liquid storage tank 91 every 0.75 h. Each injection time is 1.5 min. Each injection of air is 2.5 m 3After the emulsion and water are fused, the electronic control system 94 closes the electromagnetic valve 121 and the aeration device 93. The electronic control system 94 starts a pneumatic diaphragm pump 101 to deliver the cutting fluid to each vertical three-axis machining center 4. When the running pneumatic diaphragm pump 101 fails, the master control platform 5 starts another pneumatic diaphragm pump 101. The pressure of the cutting fluid is 8Mpa and the flow rate is 50L / min. The master control platform 5 controls the vertical three-axis machining center 4 to spray the cutting fluid on the machined parts in turn, cool the machined parts, lubricate the machined parts, cool the tools, and remove the accumulated chips. After the machining is completed, the machined parts are flushed with the cutting fluid and the fan 44 is called to blow The vertical three-axis machining center 4 is provided with a static production scheduling mode and a dynamic production scheduling mode. The static production scheduling is automatically scheduled according to the order in which the machined parts are added. When a new machined part is added, the production scheduling is postponed, and the original production scheduling order remains unchanged. When an emergency machined part is added, the master control platform 5 starts the dynamic production scheduling mode, and the vertical three-axis machining center 4 sets an insertion point and readjusts the machining order of the machined parts, inserts the order at the insertion point, and postpones other machined parts after the insertion point. The vertical three-axis machining center 4 is also provided with a manual mode. When the master control platform 5 fails or loses network, the manual mode is started. The master control platform 5 processes various data during the machining process. The data includes: the production progress and processing time of each machined part, alarm information, the operating position of the robot 2, whether it is faulty, the number of pallets 81 in the material bin 8, the start-up time of a single vertical three-axis machining center 4, the production scheduling mode, whether it is running, whether it is emergency stopped, the processing time, the start-up rate, the spindle speed, the number of machined parts processed, and whether it is faulty; when the vertical three-axis machining center 4 is machining machined parts, the master control platform 5 starts the first camera 43 to monitor the operating status of the vertical three-axis machining center 4. When the vertical three-axis machining center 4 fails or the processing is abnormal, the vertical three-axis machining center 4 is controlled to stop. The main control platform 5 starts the second camera 36 to monitor the operation status of the robot 2 in the fence 3. If a fault is found in the robot 2, the robot 2 is stopped. The main control platform 5 starts the contact switch 34 at the same time. When the safety door 33 is opened during the operation of the robot 2, the contact switch 34 is fed back to the main control platform 5. The main control platform 5 controls the alarm light 35 to sound an alarm and controls the robot 2 to stop running. The main control platform 5 starts the oil mist collector 16 to absorb mist at the same time. After all the machined parts are processed, the main control platform 5 turns off the vertical three-axis machining center 4 and controls the oil mist collector 16 to complete the mist absorption work in 15 seconds. Step 3: The robot 2 delivers the machined parts to the material loading and unloading station 7 and disassembles them. The robot 2 inspects the machined parts and delivers the pallet 81 to the material warehouse 8.

[0032] Embodiment 7: The processing method of aviation machined parts comprises the following steps: Step 1: The robot fixes the machined parts on the pallet and sends them to the vertical three-axis machining center. The robot places the pallet on the first zero-point positioning system for positioning; Step 2: The master control platform 5 controls the probe of the vertical three-axis machining center 4 to collect the height data of the four corners of the tray 81, and determines whether the height difference between the four corners of the tray 81 is greater than 0.1mm. If the height difference is greater than 0.1mm, the vertical three-axis machining center 4 alarms and stops, and the tray 81 is replaced by the robot 2, and the height data of the four corners of the tray 81 are collected again. The operation is repeated until the height difference at the four corners is less than 0.1mm; the master control platform 5 controls the probe of the vertical three-axis machining center 4 to collect the height data of the four corners of the machined parts, and determines whether the height difference between the four corners of the machined parts is greater than 0.1mm. If the height difference is not greater than 0.1mm, the z-axis of the machining coordinate system is established; if the height difference is greater than 0.1mm, the vertical three-axis machining center 4 alarms and stops, and the tray 81 is replaced by the robot 2. The height data of the four corners of the machined part are collected again, and the operation is repeated until the height difference at the four corners is less than 0.1mm, and the z-axis of the machining coordinate system is established; the probe collects height data on the side of the machined part, and when the height difference is not greater than 2mm, the x-axis and y-axis of the machining coordinate system are established; when the height difference is greater than 2mm, the vertical three-axis machining center 4 alarms and stops, and the probe feeds back the deviation value to the master control platform 5, and the master control platform 5 rotates the machining coordinate system according to the deviation value to complete the automatic alignment of the probe; the master control platform 5 starts the electric control system 94, and the electric control system 94 starts the first ball valve 141 and the flow meter 142, and sends the water in the water tank 96 to the liquid dispensing device 95 through the water inlet pipe 14, and the electric control system 94 starts the liquid dispensing device 95 to extract the emulsion from the original liquid cylinder 97, and the extraction ratio of the emulsion to water is 1: 100, the liquid dispensing device 95 delivers the emulsion and water to the liquid storage tank 91, the liquid level sensor 92 is provided with a first liquid level limit and a second liquid level limit, when the liquid level sensor 92 detects that the cutting fluid in the liquid storage tank 91 is higher than the first liquid level limit, the electronic control system 94 closes the first ball valve 141, the flow meter 142, the second ball valve 171 and the liquid dispensing device 95, the liquid level detector 98 is provided with a third liquid level limit and a fourth liquid level limit, when the liquid level detector 98 detects that the liquid level in the original liquid cylinder 97 is lower than the third liquid level limit, the electronic control system 94 controls the robot 2 to replenish the emulsion, and when the liquid level in the original liquid cylinder 97 is higher than the fourth liquid level limit, the replenishment of the emulsion is stopped; the electronic control system 94 starts the aeration device 93 and the solenoid valve 121, and injects air into the liquid storage tank 91 every 1 hour, each injection time is 2 minutes, and each injection of air is 3m 3After the emulsion and water are fused, the electronic control system 94 closes the electromagnetic valve 121 and the aeration device 93. The electronic control system 94 starts a pneumatic diaphragm pump 101 to deliver the cutting fluid to each vertical three-axis machining center 4. When the running pneumatic diaphragm pump 101 fails, the master control platform 5 starts another pneumatic diaphragm pump 101. The pressure of the cutting fluid is 10Mpa and the flow rate is 60L / min. The master control platform 5 controls the vertical three-axis machining center 4 to spray the cutting fluid on the machined parts in turn, cool the machined parts, lubricate the machined parts, cool the tools, and remove the accumulated chips. After the machining is completed, the machined parts are flushed with the cutting fluid and the fan 44 is called. Drying machine parts; the vertical three-axis machining center 4 is provided with a static scheduling mode and a dynamic scheduling mode. The static scheduling is automatically scheduled according to the order in which machined parts are added. When new machined parts are added, the scheduling is postponed, and the original scheduling order remains unchanged; when new emergency machined parts are added, the master control platform 5 starts the dynamic scheduling mode, the vertical three-axis machining center 4 sets an insertion point and readjusts the machining order of machined parts, inserts orders at the insertion point, and other machined parts are postponed after the insertion point; the vertical three-axis machining center 4 is also provided with a manual mode. When the master control platform 5 fails or loses network, the manual mode is started; the master control platform 5 processes various data during the machining process of machined parts. The data includes: the production progress and processing time of each machined part, alarm information, the operating position of the robot 2, whether it is faulty, the number of pallets 81 in the material bin 8, the start-up time of a single vertical three-axis machining center 4, the production scheduling mode, whether it is running, whether it is emergency stopped, the processing time, the start-up rate, the spindle speed, the number of machined parts processed, and whether it is faulty; when the vertical three-axis machining center 4 is machining machined parts, the master control platform 5 starts the first camera 43 to monitor the operating status of the vertical three-axis machining center 4. When the vertical three-axis machining center 4 fails or the processing is abnormal, the vertical three-axis machining center 4 is controlled to stop. The main control platform 5 starts the second camera 36 to monitor the operation status of the robot 2 in the fence 3. If a fault is found in the robot 2, the robot 2 is stopped. The main control platform 5 starts the contact switch 34 at the same time. When the safety door 33 is opened during the operation of the robot 2, the contact switch 34 is fed back to the main control platform 5. The main control platform 5 controls the alarm light 35 to sound an alarm and controls the robot 2 to stop running. The main control platform 5 starts the oil mist collector 16 to absorb mist at the same time. After all the machined parts are processed, the main control platform 5 turns off the vertical three-axis machining center 4 and controls the oil mist collector 16 to complete the mist absorption work within 30 seconds. Step 3: The robot 2 delivers the machined parts to the material loading and unloading station 7 and disassembles them. The robot 2 inspects the machined parts and delivers the pallet 81 to the material warehouse 8.

Claims

1. Flexible processing production line for aviation machined parts, characterized by: The invention comprises a guide rail (1), a robot (2) is arranged on the guide rail (1), a fence (3) is arranged around the guide rail (1), a material bin (8) is arranged on the outer side of each side of the fence (3), a plurality of vertical three-axis machining centers (4) are arranged side by side along the extension direction of the fence (3) on one side of the material bin (8), a master control platform (5) is arranged on the outer side of one end of the fence (3) close to the material bin (8), a material loading and unloading station (7) is arranged on both sides of the master control platform (5), and a power distribution cabinet (6) is arranged on the outer side of one side of the fence (3); a liquid supply system (9) is arranged on the outer side of one end of the fence (3) away from the material bin (8), the liquid supply system (9) is connected to each of the vertical three-axis machining centers (4) through a liquid supply pipe (10), the liquid supply system (9), the robot (2), and the vertical three-axis machining center (4) are respectively connected to the master control platform (5) in communication, and the master control platform (5) is electrically connected to the power distribution cabinet (6).

2. The flexible processing production line for aviation machined parts according to claim 1 is characterized in that: The fence (3) comprises a plurality of equally spaced steel pipes (31), steel nets (32) are connected between adjacent steel pipes (31), a plurality of the steel nets (32) are provided with safety doors (33), the safety doors (33) are provided with contact switches (34) and alarm lights (35), the contact switches (34) and the alarm lights (35) are respectively connected to a master control platform (5) for communication, and the height of the fence (3) is not less than 1.8 m.

3. The flexible processing production line for aviation machined parts according to claim 1 is characterized in that: A status indicator light (41) and an emergency stop button (42) are provided on one side of the vertical three-axis machining center (4); a first camera (43) is provided in the vertical three-axis machining center (4); a first zero-point positioning system (46) is provided on the table of the vertical three-axis machining center (4); a fan (44) is provided in the tool magazine (45) of the vertical three-axis machining center (4); second cameras (36) are provided at both ends of the fence (3) and on one side of the fence (3); a second zero-point positioning system (11) is provided in the material loading and unloading station (7); an L-shaped sheet metal plate (15) is fixed to the top of a machine tool door (47) of the vertical three-axis machining center (4) and one side of the machine tool door (47); an oil mist collector is provided at a position on the top of the first zero-point positioning system (46) on the vertical three-axis machining center (4). The device (16), the status indicator light (41), the emergency stop button (42), the fan (44), the first camera (43), the second camera (36), the first zero-point positioning system (46), the second zero-point positioning system (11), and the oil mist collector (16) are respectively connected to the master control platform (5) for communication. The master control platform (5) is provided with a display screen (51). Any number of vertical three-axis machining centers (4) are electrically connected. A pallet (81) is stored in the material bin (8). A plurality of threaded holes (82) are provided on the surface of the pallet (81) at positions other than the four corners. One side of four guard plates (83) are fixed to the bottom of the pallet (81), and the four guard plates (83) are spliced ​​into a rectangle. The material loading and unloading station (7) is provided with M8 countersunk bolts (71).

4. The flexible processing production line for aviation machined parts according to claim 1 is characterized in that: The liquid supply system (9) comprises a liquid storage tank (91), the liquid storage tank (91) being connected to each vertical three-axis machining center (4) via a liquid supply pipe (10), a liquid level sensor (92) being arranged in the liquid storage tank (91), the liquid storage tank (91) being connected to an aeration device (93) via an air inlet pipe (12), the liquid storage tank (91) being connected to a liquid dispensing device (95) via a liquid inlet pipe (13), one side of the liquid dispensing device (95) being connected to a water tank (96) via a water inlet pipe (14), and the other side of the liquid dispensing device (95) being connected to a raw liquid cylinder (97) via a liquid suction pipe (17), and a liquid level detector (98) being arranged in the raw liquid cylinder (97); two pneumatic diaphragm pumps (101) being arranged on the liquid supply pipe (10) ), the air inlet pipe (12) is provided with a solenoid valve (121), the water inlet pipe (14) is provided with a first ball valve (141) and a flow meter (142), the liquid suction pipe (17) is provided with a second ball valve (171), the liquid supply system (9) further comprising an electric control system (94), the aeration device (93), the liquid dispensing device (95), the pneumatic diaphragm pump (101), the solenoid valve (121), the first ball valve (141), the flow meter (142), the second ball valve (171), and the liquid level detector (98) are respectively connected to the electric control system (94) for communication, and the liquid level sensor (92) and the electric control system (94) are respectively connected to the master control platform (5) for communication.

5. The flexible processing production line for aircraft machined parts according to any one of claims 1 to 4, characterized in that: The vertical three-axis machining center (4) has a spindle power of 16KW-18.5KW, a rotation speed of 10000rpm-12000rpm, and a torque of 150N·m-161N·m.

6. A method for processing aircraft machined parts, characterized in that: The use of the flexible processing production line for aviation machined parts according to claim 5 comprises the following steps: Step 1: The robot (2) fixes the machined part on the pallet (81) and sends it to the vertical three-axis machining center (4), and the robot (2) places the pallet (81) on the first zero point positioning system (46) for positioning; Step 2: The master control platform (5) starts the vertical three-axis machining center (4) to align the machined parts, and at the same time starts the fluid supply system (9) to deliver cutting fluid to the vertical three-axis machining center (4), sprays the cutting fluid on the machined parts, cools the machined parts, lubricates the machined parts, cools the tools, and removes the accumulated chips. After the machining is completed, the machined parts are rinsed with cutting fluid and the fan (44) is called to dry the machined parts; Step 3: The robot (2) delivers the machined parts to the material loading and unloading station (7) and disassembles them. The robot (2) inspects the machined parts and delivers the tray (81) to the material bin (8).

7. The method for processing aircraft machined parts according to claim 6, characterized in that: The step 1 is specifically implemented according to the following steps: Step 1.1, the robot (2) delivers the pallet (81) to the material loading and unloading station (7), places four guard plates (83) on the second zero-point positioning system (11), and positions the pallet (81) through the second zero-point positioning system (11); Step 1.2, the robot (2) opens a through hole at each of the four corners of the surface of the machined part, places the machined part on the top of the tray (81), and passes four M8 countersunk bolts (71) through each of the through holes and fixes them in the corresponding threaded holes (82); Step 1.3, the robot (2) delivers the pallet (81) to the vertical three-axis machining center (4), places four guard plates (83) on the first zero-point positioning system (46), and positions the pallet (81) through the first zero-point positioning system (46).

8. The method for processing aircraft machined parts according to claim 6, characterized in that: The master control platform (5) starts the liquid supply system (9) in accordance with the following specific steps: Step a.1, the master control platform (5) starts the electric control system (94), the electric control system (94) starts the first ball valve (141) and the flow meter (142), and the water in the water tank (96) is sent to the liquid dispensing device (95) through the water inlet pipe (14), the electric control system (94) starts the liquid dispensing device (95) to extract the emulsion from the original liquid cylinder (97), the extraction ratio of the emulsion to water is 1:10-100, the liquid dispensing device (95) sends the emulsion and water to the liquid storage tank (91), the liquid level sensor (92) is provided with a first liquid level limit value and a second liquid level limit value, when the liquid When the level sensor (92) detects that the cutting fluid in the liquid storage tank (91) is higher than a first liquid level limit, the electronic control system (94) closes the first ball valve (141), the flow meter (142), the second ball valve (171) and the liquid dispensing device (95); a third liquid level limit and a fourth liquid level limit are set in the liquid level detector (98); when the liquid level detector (98) detects that the liquid level in the original liquid cylinder (97) is lower than the third liquid level limit, the electronic control system (94) controls the robot (2) to replenish the emulsion; when the liquid level in the original liquid cylinder (97) is higher than the fourth liquid level limit, the replenishment of the emulsion is stopped; Step a.2: the electronic control system (94) starts the aeration device (93) and the electromagnetic valve (121) to inject air into the liquid storage tank (91) every 0.5h-1h. Each injection time is 1min-2min and each injection time is 2m 3 -3m 3 After the emulsion and water are fused, the electronic control system (94) closes the solenoid valve (121) and the aeration device (93); Step a.3, the electric control system (94) starts a pneumatic diaphragm pump (101) to deliver the cutting fluid to each vertical three-axis machining center (4) respectively. When the running pneumatic diaphragm pump (101) fails, the master control platform (5) starts another pneumatic diaphragm pump (101). The pressure of the cutting fluid is 6Mpa-10Mpa, and the flow rate is 40L / min-60L / min.

9. The method for processing aircraft machined parts according to claim 6, characterized in that: The alignment machine addition is specifically implemented according to the following steps: Step b.1, the master control platform (5) controls the probe of the vertical three-axis machining center (4) to collect the height data of the four corners of the tray (81), and determines whether the height difference between the four corners of the tray (81) is greater than 0.1 mm. If the height difference is greater than 0.1 mm, the vertical three-axis machining center (4) alarms and stops, and the tray (81) is replaced by the robot (2), and the height data of the four corners of the tray (81) are collected again. The operation is repeated until the height difference at the four corners is less than 0.1 mm. Step b.2, the master control platform (5) controls the probe of the vertical three-axis machining center (4) to collect height data at the four corners of the machined part, and determines whether the height difference between the four corners of the machined part is greater than 0.1 mm. If the height difference is not greater than 0.1 mm, the z-axis of the machining coordinate system is established; if the height difference is greater than 0.1 mm, the vertical three-axis machining center (4) alarms and stops, and the robot (2) replaces the pallet (81), collects the height data at the four corners of the machined part again, and repeats the operation until the height difference at the four corners is less than 0.1 mm, and the z-axis of the machining coordinate system is established; In step b.3, the probe collects height data on the side of the machined part. When the height difference is not greater than 2 mm, the x-axis and y-axis of the machining coordinate system are established. When the height difference is greater than 2 mm, the vertical three-axis machining center (4) alarms and stops, and the probe feeds back the deviation value to the master control platform (5). The master control platform (5) rotates the machining coordinate system according to the deviation value to complete the automatic alignment of the probe.

10. The method for processing aircraft machined parts according to claim 6, characterized in that: The vertical three-axis machining center (4) is provided with a static production scheduling mode and a dynamic production scheduling mode. The static production scheduling is automatically scheduled according to the order in which machined parts are added. When a new machined part is added, the production scheduling is postponed, and the original production scheduling order remains unchanged. When an urgent machined part is added, the master control platform (5) starts the dynamic production scheduling mode, and the vertical three-axis machining center (4) sets an insertion point and readjusts the machining order of the machined parts. The order is inserted at the insertion point, and other machined parts are postponed after the insertion point. The vertical three-axis machining center (4) is also provided with a manual mode. When the master control platform (5) starts the dynamic production scheduling mode, the vertical three-axis machining center (4) sets an insertion point and readjusts the machining order of the machined parts. The order is inserted at the insertion point, and other machined parts are postponed after the insertion point. When the control platform (5) fails or loses network connection, the manual mode is activated; the master control platform (5) synchronously records various data during the machining process, including: the production progress and machining time of each machined part, alarm information, the running position of the robot (2), whether it is faulty, the number of pallets (81) in the material bin (8), the start-up time of a single vertical three-axis machining center (4), the production scheduling mode, whether it is running, whether it is emergency stopped, the machining time, the start-up rate, the spindle speed, the number of machined parts that have been processed, and whether it is faulty When the vertical three-axis machining center (4) is machining a part, the master control platform (5) starts the first camera (43) to monitor the operation status of the vertical three-axis machining center (4). When the vertical three-axis machining center (4) fails or the machining is abnormal, the vertical three-axis machining center (4) is controlled to stop running. The master control platform (5) simultaneously starts the second camera (36) to monitor the operation status of the robot (2) in the fence (3). If the robot (2) fails, the robot (2) stops working. The master control platform (5) simultaneously starts The moving contact switch (34) is used. When the safety door (33) is opened during the operation of the robot (2), the contact switch (34) is fed back to the master control platform (5). The master control platform (5) controls the alarm light (35) to sound an alarm, controls the robot (2) to stop running, and simultaneously starts the oil mist collector (16) to absorb mist. After all machined parts are processed, the master control platform (5) turns off the vertical three-axis machining center (4) and controls the oil mist collector (16) to complete the mist absorption work within 0s-30s.

Images