Intelligent flexible production line

Abstract

The application relates to a kind of intelligent flexible production lines, including flexible processing device, visual identification device, circulating conveying system, robot, ground rail, grabbing clamp, positioning mechanism, measuring mechanism and cleaning drying device, circulating conveying system includes conveying mechanism, feeding station, feeding connection station, visual photographing station, material taking and placing station, first lifting mechanism, second lifting mechanism, discharging connection station and discharging disassembly station, visual identification device is matched workpiece information after photographing and identifying workpiece of visual photographing station, positioning mechanism includes zero point positioning base plate assembly arranged in machining center predetermined position and zero point positioning carrier plate assembly for fixing workpiece, cleaning drying device is used for cleaning workpiece, measuring mechanism three-coordinate measuring machine is used for measuring workpiece, and robot is used for material flow by grabbing clamp grabbing workpiece.The application can improve the automation level and the machining precision of product, improve production efficiency, reduce production cost.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of automation, and particularly relates to an intelligent flexible production line. BACKGROUND

[0002] At present, most microwave communication products with precise machining parts adopt aluminum alloy materials and are processed through CNC numerical control machine tools. The products of this type have the characteristics of large overall batch, various types, complex part structure, high precision requirement and large machining difficulty.

[0003] In the machining process, artificial feeding, artificial tool calibration and artificial processing program calling are required, one person can only operate one or two machine tools, and the efficiency is low. At the same time, due to the positioning and other human errors of the operator, the product may be scrapped. After machining, the workpiece needs to be manually removed from the machine table for cleaning of oil stains and aluminum chips. After cleaning, the related products are blown dry and fixed to the three coordinates for key size measurement of the parts. In the whole process, artificial feeding, disassembly, carrying, cleaning and positioning lead to a large amount of labor input, thus prolonging the time for producing one finished product and increasing the cost.

[0004] Therefore, how to realize automatic feeding and discharging of the parts and complete machining, how to automatically clean the products after machining, and how to realize automatic detection of the cleaned products have become problems to be solved by the person skilled in the art.

[0005] In view of the above, it is urgent to provide an intelligent flexible production line which can improve the automation level and the machining precision of products, improve the production efficiency, reduce the production cost, and improve the product competitiveness. SUMMARY

[0006] The application aims to provide an intelligent flexible production line which can improve the automation level and the machining precision of products, improve the production efficiency, reduce the production cost, and improve the product competitiveness.

[0007] The above object is achieved by the following technical solution: an intelligent flexible production line, comprising a flexible processing device, a visual recognition device, a circulating conveying system, a robot, a ground rail, a grabbing clamp, a positioning mechanism, a measuring mechanism and a cleaning and drying device, the grabbing clamp being arranged on a mechanical arm of the robot, the robot being arranged on the ground rail and being movable along the ground rail, the flexible processing device comprising a plurality of processing centers arranged on both sides of the ground rail, the circulating conveying system being arranged on one side of the ground rail, the circulating conveying system comprising a conveying mechanism, a feeding station, a feeding connection station, a visual photographing station, a material taking and placing station, a first lifting mechanism, a second lifting mechanism, a discharging connection station and a discharging and disassembling station, the feeding station, the material connection station, the visual photographing station, the material taking and placing station, the discharging connection station and the discharging and disassembling station being connected through the conveying mechanism, the conveying mechanism comprising an upper conveying mechanism and a lower conveying mechanism, the first lifting mechanism and the second lifting mechanism being arranged at both ends of the conveying mechanism respectively and being used to realize intercommunication of the upper conveying mechanism and the lower conveying mechanism, the feeding station and the discharging and disassembling station being arranged at the input end and the output end of the conveying mechanism respectively, the visual recognition device being arranged on one side of the visual photographing station and being used to take a photograph of a workpiece of the visual photographing station, recognize the workpiece and match workpiece information, the positioning mechanism comprising a zero-point positioning base plate assembly arranged at a predetermined position of the processing center and a zero-point positioning carrier plate assembly used to fix a workpiece, the zero-point positioning carrier plate assembly comprising a carrier plate and a positioning draw stud arranged on the carrier plate, the zero-point positioning base plate assembly being provided with a zero-point positioner, the positioning draw stud being positioned and limited in combination with the zero-point positioner, the cleaning and drying device being used to clean a workpiece after processing, the measuring mechanism comprising a measuring platform and a three-coordinate measuring machine, the three-coordinate measuring machine being used to measure a workpiece after processing on the measuring platform, the robot being used to transfer material by grabbing the zero-point positioning carrier plate assembly on which a workpiece is fixed through the grabbing clamp.

[0008] In the specific application process of the application, the zero-position positioning carrier plate fixed with the workpiece to be processed is conveyed by the circulating conveying system, the required product is transmitted to the feeding and discharging station according to the machining center signal, the type of the feeding workpiece is detected by visual photographing, mixed-line production can be realized, different machining centers can process different workpieces; the robot takes the material to the corresponding machining center platform according to the relevant signal, the robot takes out the machined workpiece in the platform through the grabbing clamp, and at the same time, the blank workpiece grabbed from the conveying mechanism is placed in the platform for processing, then the robot places the machined workpiece on the feeding table of the cleaning and drying device, and sequentially puts it into the cleaning and drying device for cleaning and drying, and after cleaning, the workpiece is placed on the cleaning discharging table, and the robot grabs the cleaned workpiece, and the grabbing process is realized by the combination of the grabbing clamp and the zero-position positioning carrier plate; the cleaned workpiece is detected by the three-coordinate measuring machine, the shape and size of the workpiece are detected, and whether the machined workpiece meets the requirements is measured; then the robot places the detected product on the conveying mechanism and circulates to the material disassembling station for disassembling and discharging.

[0009] The zero-position positioning substrate assembly is mainly fixed on the platform in the machining center moving XY platform by screws and nuts, and is positioned by the zero-position positioning substrate assembly arranged at the predetermined position of the machining center and the zero-position positioning carrier plate assembly, so that the repeat positioning accuracy of ±0.005mm is realized, which is beneficial to machining high-precision products.

[0010] The whole line of the application has high automation degree, and except that manual feeding of blank parts and discharging of finished products are required at the conveying line, no other personnel intervention is required.

[0011] Further technical solutions are that the feeding station is used for feeding workpieces, the feeding connection station is used for reversing and circulating the zero-position positioning carrier plate after feeding, the visual photographing station is further provided with an automatic code scanning device, the automatic code scanning device is used for scanning and confirming whether the information of the zero-position positioning carrier plate is required for machining, if yes, the visual recognition device takes a photograph and matches the workpiece information, and if not, the conveying mechanism continues to circulate; the material taking and placing station is used for storing the zero-position positioning carrier plate of the workpiece required for machining, the material taking and placing station is arranged at the middle position of the circulating conveying system, the discharging connection station is used for realizing discharging of the machined workpiece, and the discharging disassembling station is used for unbinding the zero-position positioning carrier plate and the workpiece information, and completing the whole circulation of the workpiece.

[0012] In the application process, after the workpiece is loaded, a person holds a scanning code gun to scan the barcode of the zero point positioning carrier plate to confirm the zero point positioning carrier plate information and upload and bind related information; the loading connection station is used for reversing the flow of the zero point positioning carrier plate after manual loading, and after flowing to the visual shooting station, whether the zero point positioning carrier plate information is required by the machine is confirmed through the automatic scanning code mechanism of the loading, if yes, the workpiece information is shot at the visual shooting station and matched, if not, the shooting is temporarily not performed and the cycle is continued; the zero point positioning carrier plate of the workpiece required by the machine flows to the material taking and placing station, a robot takes away the zero point positioning carrier plate assembly and sends it to the required machine, the unloading connection station is used for reversing the flow of the workpiece after processing, the carrier plate information is confirmed through the automatic scanning code, the workpiece is manually unloaded to the unloading disassembly station, and the carrier plate and the workpiece information are unbound through manual scanning code, so that the whole cycle of the workpiece is completed.

[0013] The circulating conveying system can confirm the accuracy of the bound information through manual scanning code and automatic scanning code, prevent the damage of the machine tool during machining caused by wrong loading, and add visual shooting to detect the type of the loaded workpiece, so that mixed-line production can be realized.

[0014] Further, the grabbing clamp comprises a clamp frame assembly, a lower parallel pneumatic clamping jaw, an upper parallel pneumatic clamping jaw, a lower clamping jaw and an upper clamping jaw, the lower parallel pneumatic clamping jaw, the upper parallel pneumatic clamping jaw, the lower clamping jaw and the upper clamping jaw are arranged on the clamp frame assembly, and the lower clamping jaw and the upper clamping jaw are used for grabbing the zero point positioning carrier plate.

[0015] Further, the visual recognition device comprises a support column, a connecting cantilever, a camera fixing plate, a camera, a light source height adjusting plate, a light source fixing plate, a light source angle adjusting plate and a light source, the camera is fixed on the support column through the connecting cantilever and the camera fixing plate, and the light source is fixed on the connecting cantilever through the light source height adjusting plate, the light source fixing plate and the light source angle adjusting plate. Specifically, the support column is fixed to the ground through a chemical bolt, the height and the front-rear direction of the camera can be adjusted, and the visual coverage range is increased; the height and the angle of the light source can be adjusted, so that the light source effect is best, and the visual shooting effect is effectively ensured.

[0016] Further, the cleaning and drying device comprises a loading table, a cleaning and drying machine, a discharging table and a truss system, the loading table and the discharging table are arranged at the loading position and the discharging position of the cleaning and drying machine respectively, the cleaning and drying machine is used for cleaning the workpiece, and the truss system is used for grabbing the workpiece to flow between the loading table, the cleaning and drying machine and the discharging table.

[0017] Further technical solutions are that the upper feeding table and the lower feeding table each include a base frame, a receiving plate, a receiving block, a positioning pin, and a sensing assembly for sensing the workpiece. The receiving plate is fixed on the base frame, the receiving block is fixed on the receiving plate, the positioning pin is arranged on the receiving plate, and the sensing assembly is arranged on the side of the receiving plate through a mounting plate. Specifically, the zero-point positioning load plate assembly for fixing the workpiece is placed on the receiving block of the upper feeding table by the robot, and is positioned by the positioning pin. The receiving block and the positioning pin on the lower feeding table are used to position and limit the zero-point positioning load plate assembly.

[0018] Further technical solutions are that the truss system includes a support column, an X-axis moving assembly, a Z-axis moving assembly, and a truss clamp. The support column is arranged at two ends of the cleaning and drying machine. The X-axis moving assembly is arranged on the support column and located above the cleaning and drying machine. The Z-axis moving assembly is arranged on the X-axis moving assembly and can move along the X-axis moving assembly. The truss clamp is arranged on the Z-axis moving assembly. The Z-axis moving assembly is used to drive the truss clamp to move vertically.

[0019] Further technical solutions are that the cleaning and drying machine includes a frame assembly, an ultrasonic cleaning tank, a high-pressure spraying tank, a blow-drying tank, and a movable door. The ultrasonic cleaning tank, the high-pressure spraying tank, and the blow-drying tank are arranged in the frame assembly in sequence. The movable door is movably connected to the upper part of the frame assembly and is used to cover the ultrasonic cleaning tank, the high-pressure spraying tank, and the blow-drying tank. Specifically, the truss clamp takes the workpiece from the upper feeding table, places it in the cleaning device for workpiece cleaning, and carries and transfers it from the three tanks of the cleaning device according to system instructions to complete the cleaning and drying of the workpiece. After the completion, the workpiece is transferred to the lower feeding table. The frame assembly is mainly used to support the overall structure of the cleaning and drying machine. The ultrasonic cleaning tank cleans the workpiece through ultrasonic waves. The ultrasonic waves are generated by a transducer that converts the electrical energy provided by an ultrasonic frequency power supply into ultrasonic frequency mechanical vibration, and radiates sound waves to the cleaning liquid in the tank through the tank wall. Micro-bubbles (cavitation nuclei) existing in the liquid vibrate under the action of the sound field. When the sound pressure reaches a certain value, the gas bubbles rapidly grow and then suddenly close, generating a shock wave around them, which breaks down insoluble dirt, so that they are dispersed in the cleaning liquid. The high-pressure spraying tank 173 sprays clean water on the workpiece through a high-pressure pump body to spray and clean the residual debris on the workpiece surface. The filtered clean water after spraying is filtered to a sub-tank for recycling through a high-efficiency filtration system. The blow-drying tank uses a high-pressure air blower to blow-dry the workpiece, ensuring that the workpiece is clean and free of water droplets before entering the three-coordinate measuring machine, effectively ensuring the measurement accuracy of the three-coordinate measuring machine.

[0020] Further, the measuring mechanism is arranged in a three-coordinate chamber, and the measuring platform is provided with a zero-point positioning base plate assembly. In this way, the zero-point positioning base plate assembly is positioned in cooperation with the zero-point positioning carrier plate during measurement, so as to ensure the measurement accuracy.

[0021] Further, the machining center is provided with an automatic lifting door assembly, the automatic lifting door assembly comprises a lifting cylinder, a lifting door plate and a fixed connecting plate, the lifting cylinder is fixed on the frame of the machining center through the fixed connecting plate, the lifting door plate is connected with the movable end of the lifting cylinder, and the lifting cylinder is used for driving the lifting door plate to move to realize the opening and closing of the automatic lifting door assembly. In this way, the machine is automatically opened according to the prompt when the robot feeds, and the machine is automatically closed after feeding; the workpiece for feeding is the zero-point positioning carrier plate assembly, which is automatically combined and tensioned with the base plate zero-point positioner after feeding, without manual tool setting and other operations, and the machine realizes automatic machining according to the pre-programmed program.

[0022] Compared with the prior art, the type of the feeding workpiece is detected by visual photographing, mixed line production can be realized, different workpieces can be machined by using different machining centers, the double-station grabbing mechanism is adopted in the robot grabbing system, the production rhythm can be greatly optimized, and the production efficiency is improved, the fitting accuracy of the zero-point positioning base plate and the carrier plate is required to be within a predetermined range to ensure the machining accuracy, the three-tank cleaning method is adopted in the cleaning and drying mechanism to clean the machined workpiece and the carrier plate by ultrasonic cleaning liquid, high-pressure water spraying and air blowing three times, the full-automatic cleaning of the workpiece is realized without manual intervention, and the automatic measurement also only needs manual measurement once, then the related coordinate points of the workpiece to be measured are input into the program, and the system can automatically call the related measurement program to detect according to the information of each incoming workpiece, so that manual installation, positioning and point setting for measurement are saved, and a large amount of manpower is saved. BRIEF DESCRIPTION OF DRAWINGS

[0023] The accompanying drawings, which form a part of the present application, are used to provide further understanding of the present application, and serve as an aid in explaining the illustrative embodiments of the present application and their descriptions, and do not constitute improper limitations on the present application.

[0024] Figure 1 The intelligent flexible production line plane layout schematic diagram related to one embodiment of the present application;

[0025] Figure 2 The schematic diagram of the flexible machining device related to one embodiment of the present application;

[0026] Figure 3 The schematic diagram of the visual identification device related to one embodiment of the present application;

[0027] Figure 4Schematic diagram of the circulating conveying system according to an embodiment of the application;

[0028] Figure 5 Schematic diagram of the grabbing clamp according to an embodiment of the application;

[0029] Figure 6 Schematic diagram of the cleaning and drying device according to an embodiment of the application;

[0030] In the figure:

[0031] 1 flexible processing device 2 visual recognition device 3 circulating conveying system 4 ground rail

[0032] 5 robot 6 grabbing clamp 7 measuring mechanism 8 loading table

[0033] 9 cleaning and drying machine 10 unloading table 11 gantry system 12 automatic lifting door assembly

[0034] 13 lifting cylinder 14 lifting door plate 15 fixed connecting plate 16 zero-point positioning base plate assembly

[0035] 91 chemical bolt 92 support column 93 connecting cantilever 94 camera fixing plate

[0036] 95 camera 96 light source height adjusting plate 97 light source fixing plate 98 light source angle adjusting plate

[0037] 99 light source 101 loading station 102 loading connection station 103 visual photographing station

[0038] 104 taking and placing material station 105 first lifting mechanism 106 second lifting mechanism 107 unloading connection station

[0039] 108 unloading disassembly station 131 clamp frame assembly 132 lower parallel pneumatic clamping jaw 133 lower clamping jaw

[0040] 134 upper parallel pneumatic clamping jaw 135 upper clamping jaw 136 zero-point positioning carrier plate assembly 137 positioning draw pin

[0041] 138 carrier plate 161 base frame 162 receiving plate 163 receiving block

[0042] 164 sensing assembly 165 positioning pin 171 frame assembly 172 ultrasonic cleaning tank

[0043] 173 high-pressure spraying tank 174 blow-drying tank 175 moving door 191 support column

[0044] 192 X-axis moving assembly 193 Z-axis moving assembly 194 gantry clamp DETAILED DESCRIPTION

[0045] The application will be described in detail below with reference to the drawings, the description in this part is only exemplary and explanatory, and should not have any limiting effect on the protection scope of the application. In addition, those skilled in the art can combine the features in the embodiments in this document and in different embodiments according to the description in this document.

[0046] The application is implemented as follows, referring to Figures 1-6 A smart flexible production line, comprising a flexible processing device 1, a visual recognition device 2, a circulating conveying system 3, a robot 5, a ground rail 4, a grabbing clamp 6, a positioning mechanism, a measuring mechanism 7 and a cleaning and drying device, the grabbing clamp 6 is arranged on the mechanical arm of the robot 5, the robot 5 is arranged on the ground rail 4 and can move along the ground rail 4, the flexible processing device 1 comprises a plurality of processing centers arranged on both sides of the ground rail 4, the circulating conveying system 3 is arranged on one side of the ground rail 4, the circulating conveying system 3 comprises a conveying mechanism, a feeding station 101, a feeding connecting station 102, a visual photographing station 103, a taking and placing station 104, a first lifting mechanism 105, a second lifting mechanism 106, a discharging connecting station 107 and a discharging and disassembling station 108, the feeding station 101, the feeding connecting station, the visual photographing station 103, the taking and placing station 104, the discharging connecting station 107 and the discharging and disassembling station 108 are connected through the conveying mechanism, the conveying mechanism comprises an upper conveying mechanism and a lower conveying mechanism, the first lifting mechanism 105 and the second lifting mechanism 106 are arranged at both ends of the conveying mechanism respectively and are used to realize the intercommunication of the upper conveying mechanism and the lower conveying mechanism, the feeding station 101 and the discharging and disassembling station 108 are arranged at the input end and the output end of the conveying mechanism respectively, the visual recognition device 2 is arranged on one side of the visual photographing station 103 and is used to match the workpiece information after photographing and recognizing the workpiece of the visual photographing station 103, the positioning mechanism comprises a zero-point positioning base plate assembly 16 arranged at a predetermined position of the processing center and a zero-point positioning carrier plate assembly 136 used to fix the workpiece, the zero-point positioning carrier plate assembly 136 comprises a carrier plate 138 and a positioning pull nail 137 arranged on the carrier plate 138, a zero-point positioner is arranged on the zero-point positioning base plate assembly 16, the positioning pull nail 137 is positioned and limited after being combined with the zero-point positioner, the cleaning and drying device is used to clean the workpiece after processing, the measuring mechanism 7 comprises a measuring platform and a three-coordinate measuring machine, the three-coordinate measuring machine is used to measure the workpiece after processing on the measuring platform, the robot 5 grasps the zero-point positioning carrier plate assembly 136 fixed with the workpiece through the grabbing clamp 6 to realize the material flow.

[0047] In the specific application process of the present application, the circulation conveying system 3 conveys the zero positioning carrier plate 138 fixed with the workpiece to be processed, and transmits the required product to the feeding and discharging station according to the machining center signal, and the type of the feeding workpiece is detected by visual photographing, so that mixed line production can be realized, and different machining centers can process different workpieces; the robot 5 takes the material to the corresponding machining center according to the related signal, the robot 5 takes out the workpiece processed in the machine table through the grabbing clamp 6, and at the same time, the blank workpiece grabbed from the conveying mechanism is placed in the machine table for processing, then the robot 5 places the processed workpiece on the cleaning loading table 8 of the cleaning and drying device, and sequentially places it in the cleaning and drying device for cleaning and drying, and after cleaning, the workpiece is placed on the cleaning discharging table 10, and the robot 5 grabs the cleaned workpiece, and the grabbing process is realized by the combination of the grabbing clamp 6 and the zero positioning carrier plate 138; the cleaned workpiece is detected by the three-coordinate measuring machine, the shape and size of the workpiece are detected, and whether the processed workpiece meets the requirements is measured; then the robot 5 places the detected product on the conveying mechanism, and circulates to the material disassembling station for discharging.

[0048] When the zero positioning base plate assembly 16 is fixed on the machine table of the machining center moving XY platform through screws and nuts, the zero positioning base plate assembly 16 and the zero positioning carrier plate assembly 136 arranged at the predetermined position of the machining center constitute a positioning mechanism for positioning, and the repeat positioning accuracy of ±0.005mm is realized, which is beneficial to processing high-precision products.

[0049] The whole line body of the present application has high automation degree, and no other personnel is needed to intervene except that manual feeding of blank parts and discharging of finished products are needed at the conveying line.

[0050] On the basis of the above embodiment, in another embodiment of the present application, Figure 4 The feeding station 101 is used for feeding the workpiece, the feeding connection station 102 is used for reversing the flow of the zero positioning carrier plate 138 after feeding, the visual photographing station 103 is further provided with an automatic code scanning device for feeding, the automatic code scanning device is used for scanning and confirming whether the information of the zero positioning carrier plate 138 is required for processing, if yes, the visual recognition device 2 takes a photograph and matches the information of the workpiece, and if not, the conveying mechanism continues to circulate; the material taking and discharging station 104 is used for storing the zero positioning carrier plate 138 of the workpiece required for processing, the material taking and discharging station 104 is arranged at the middle position of the circulation conveying system 3, the discharging connection station 107 is used for realizing the discharging of the processed workpiece, and the discharging disassembling station 108 is used for unbinding the zero positioning carrier plate 138 and the information of the workpiece, and completing the whole circulation of the workpiece.

[0051] In the application process, after the workpiece is loaded, a worker holds a scanning code gun to scan the barcode of the zero point positioning carrier plate 138 to confirm the zero point positioning carrier plate 138 information and upload and bind related information; the loading connection station 102 is used for manually loading and then reversing the flow of the zero point positioning carrier plate 138, and after flowing to the visual shooting station 103, whether the zero point positioning carrier plate 138 information is required by the machine is confirmed through the loading automatic scanning code mechanism, if yes, the visual shooting station 103 is used for shooting and matching the workpiece information, and if not, the shooting is temporarily not performed and the cycle is continued; the zero point positioning carrier plate 138 of the workpiece required by the machine flows to the loading and unloading station 104, the robot 5 takes away the zero point positioning carrier plate assembly 136 and sends it to the required machine, the unloading connection station 107 is used for realizing the unloading and reversing of the workpiece after processing, the carrier plate 138 information is confirmed through the automatic scanning code, the workpiece is manually unloaded to the unloading and disassembling station 108, and the carrier plate 138 information is unbound with the workpiece information through manual scanning code, and the whole cycle of the workpiece is completed.

[0052] The circulation conveying system 3 of the application can determine the accuracy of the bound information through manual scanning code and automatic scanning code, prevent the machine tool from being damaged during processing due to wrong loading, and add visual shooting to detect the type of the loaded workpiece, so that mixed-line production can be realized.

[0053] On the basis of the above-mentioned embodiment, in another embodiment of the application, Figure 5 The grabbing clamp 6 comprises a clamp frame assembly 131, a lower parallel pneumatic clamp jaw 132, an upper parallel pneumatic clamp jaw 134, a lower clamp jaw 133 and an upper clamp jaw 135, the lower parallel pneumatic clamp jaw 132, the upper parallel pneumatic clamp jaw 134, the lower clamp jaw 133 and the upper clamp jaw 135 are arranged on the clamp frame assembly 131, and the lower clamp jaw 133 and the upper clamp jaw 135 are used for grabbing the zero point positioning carrier plate 138.

[0054] On the basis of the above-mentioned embodiment, in another embodiment of the application, Figure 3 The visual recognition device 2 comprises a support column 92, a connecting cantilever 93, a camera fixing plate 94, a camera 95, a light source height adjusting plate 96, a light source fixing plate 97, a light source angle adjusting plate 98 and a light source 99, the camera 95 is fixed on the support column 92 through the connecting cantilever 93 and the camera fixing plate 94, and the light source 99 is fixed on the connecting cantilever 93 through the light source height adjusting plate 96, the light source fixing plate 97 and the light source angle adjusting plate 98. Specifically, the support column 92 is fixed to the ground through a chemical bolt 91, the height and the front-rear direction of the camera 95 can be adjusted, and the visual coverage range is increased; the height and the angle of the light source 99 can be adjusted, so that the light source 99 has the best effect and the visual shooting effect is effectively ensured.

[0055] On the basis of the above-mentioned embodiment, in another embodiment of the application, Figure 6The cleaning and drying device comprises a feeding table 8, a cleaning and drying machine 9, a discharging table 10 and a truss system 11, the feeding table 8 and the discharging table 10 are arranged at the feeding position and the discharging position of the cleaning and drying machine 9 respectively, the cleaning and drying machine 9 is used for cleaning the workpiece, and the truss system 11 is used for transferring the workpiece between the feeding table 8, the cleaning and drying machine 9 and the discharging table 10.

[0056] On the basis of the above-mentioned embodiments, in another embodiment of the present application, as shown in Figure 6 The feeding table 8 and the discharging table 10 each comprise a base frame 161, a receiving plate 162, a receiving block 163, a positioning pin 165 and an induction assembly 164 for inducting the workpiece, the receiving plate 162 is fixed on the base frame 161, the receiving block 163 is fixed on the receiving plate 162, the positioning pin 165 is arranged on the receiving block 163, and the induction assembly 164 is arranged on the side of the receiving plate 162 through a mounting plate. Specifically, the zero-point positioning load plate assembly 136 for fixing the workpiece is placed on the receiving block 163 of the feeding table 8 by the robot 5, and is positioned by the positioning pin 165; the receiving block 163 and the positioning pin 165 on the discharging table 10 also position and limit the zero-point positioning load plate assembly 136.

[0057] On the basis of the above-mentioned embodiments, in another embodiment of the present application, as shown in Figure 6 The truss system 11 comprises a support column 191, an X-axis moving assembly 192, a Z-axis moving assembly 193 and a truss clamp 194, the support column 191 is arranged at both ends of the cleaning and drying machine 9, the X-axis moving assembly 192 is arranged on the support column 191 and located above the cleaning and drying machine 9, the Z-axis moving assembly 193 is arranged on the X-axis moving assembly 192 and can move along the X-axis moving assembly 192, and the truss clamp 194 is arranged on the Z-axis moving assembly 193, and the Z-axis moving assembly 193 is used for driving the truss clamp 194 to move vertically.

[0058] On the basis of the above-mentioned embodiments, in another embodiment of the present application, as shown in Figure 6The cleaning and drying machine 9 comprises a frame assembly 171, an ultrasonic cleaning tank 172, a high-pressure spraying tank 173, a blow-drying tank 174 and a movable door 175, the ultrasonic cleaning tank 172, the high-pressure spraying tank 173 and the blow-drying tank 174 are sequentially arranged in the frame assembly 171, and the movable door 175 is movably connected to the upper portion of the frame assembly 171 and is used for covering the ultrasonic cleaning tank 172, the high-pressure spraying tank 173 and the blow-drying tank 174. Specifically, the truss clamp 194 takes the workpiece from the feeding table 8, places the workpiece in the cleaning equipment for workpiece cleaning, and carries and transfers the workpiece from the three tanks of the cleaning equipment according to system instructions, completes the cleaning and drying of the workpiece, and then transfers the workpiece to the discharging table 10. The frame assembly 171 is mainly used for supporting the overall structure of the cleaning and drying machine 9. The ultrasonic cleaning tank 172 cleans the workpiece through ultrasonic waves. The ultrasonic waves are generated by a transducer which converts the electric energy provided by an ultrasonic frequency power supply into ultrasonic frequency mechanical vibration, and radiates sound waves to the cleaning liquid in the tank through the tank wall. Micro-bubbles (cavitation nuclei) existing in the liquid vibrate under the action of the sound field. When the sound pressure reaches a certain value, the bubbles rapidly grow and then suddenly close, generating an impact wave when the bubbles close, which generates thousands of atmospheric pressures around the bubbles, thereby destroying the insoluble dirt and making them dispersed in the cleaning liquid. The high-pressure spraying tank 173 sprays clean water on the workpiece through a high-pressure pump body to spray and clean the workpiece, and filters the sprayed clean water through a high-efficiency filtering system to a sub-tank for recycling. The blow-drying tank 174 blows dry the workpiece through a high-pressure air blower to ensure that the workpiece is clean and free of water drops before entering the three-coordinate measuring machine, thereby effectively ensuring the measurement accuracy of the three-coordinate measuring machine.

[0059] On the basis of the above-mentioned embodiment, in another embodiment of the present application, the measuring mechanism 7 is arranged in the three-coordinate chamber, and the measuring platform is provided with a zero-point positioning base plate assembly 16. In this way, the zero-point positioning base plate assembly 16 cooperates with the zero-point positioning carrier plate 138 to position during measurement, thereby ensuring the measurement accuracy.

[0060] On the basis of the above-mentioned embodiment, in another embodiment of the present application, as shown in Figure 2 , the machining center is provided with an automatic lifting door assembly 12, the automatic lifting door assembly 12 comprises a lifting cylinder 13, a lifting door plate 14 and a fixed connecting plate 15, the lifting cylinder 13 is fixed on the frame of the machining center through the fixed connecting plate 15, the lifting door plate 14 is connected to the movable end of the lifting cylinder 13, and the lifting cylinder 13 is used to drive the lifting door plate 14 to move to realize the opening and closing of the automatic lifting door assembly 12. In this way, the machine tool is automatically opened according to the prompt when the robot 5 feeds, and the machine tool is automatically closed after feeding; the workpiece for feeding is the zero-point positioning carrier plate assembly 136, which is automatically combined and tensioned with the base plate zero-point positioner after feeding, without manual tool setting and other operations, and the machine tool realizes automatic machining according to the pre-programmed program.

[0061] Compared with the prior art, the present application adds visual photographing detection to load the type of workpiece, can realize mixed line production, uses different machining centers to process different workpieces; the robot 5 grabbing system adopts a double-station grabbing mechanism to greatly optimize the production rhythm and improve the production efficiency; the positioning mechanism requires that the fitting accuracy of the zero-point positioning base plate and the carrier plate 138 is within the predetermined condition to work normally, ensuring the processing accuracy; the cleaning and drying mechanism adopts a three-tank mode to clean the processed workpiece and the carrier plate 138 with ultrasonic cleaning liquid, high-pressure water spraying and air blowing three times, realizing the full-automatic cleaning of the workpiece without manual intervention; automatic measurement, only the first measurement is completed by manual, the related coordinate points of the workpiece to be measured are input into the program, the system will automatically call the related measurement program to detect according to the incoming material information each time, without manual installation and positioning of the incoming workpiece to measure the points each time, a large amount of manpower is saved.

[0062] The above only describes the preferred embodiments of the present application, and it should be noted that for those skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should also be considered within the protection scope of the present application.

Claims

1. An intelligent flexible production line, characterized in that, The system includes a flexible processing device, a visual recognition device, a circulating conveyor system, a robot, a ground rail, a gripping fixture, a positioning mechanism, a measuring mechanism, and a cleaning and drying device. The gripping fixture is mounted on the robot's robotic arm. The robot is mounted on the ground rail and can move along it. The flexible processing device includes multiple processing centers located on both sides of the ground rail. The circulating conveyor system is located on one side of the ground rail and includes a conveying mechanism, a loading station, a loading docking station, a visual imaging station, a material handling station, a first lifting mechanism, a second lifting mechanism, a material unloading docking station, and a material unloading and dismantling station. The workstations are connected by the conveying mechanism, which includes an upper conveying mechanism and a lower conveying mechanism. A first lifting mechanism and a second lifting mechanism are respectively located at both ends of the conveying mechanism to enable communication between the upper and lower conveying mechanisms. The loading station and the unloading / disassembly station are respectively located at the input and output ends of the conveying mechanism. The visual recognition device is located on one side of the visual imaging station and is used to photograph and recognize the workpiece at the visual imaging station and match the workpiece information. The positioning mechanism includes a zero-point positioning base plate assembly located at a predetermined position in the machining center and a zero-point positioning carrier plate assembly for fixing the workpiece. The zero-point positioning carrier plate assembly includes a carrier plate and positioning rivets on the carrier plate. The zero-point positioning base plate assembly is equipped with a zero-point locator. The positioning pull stud, after engaging with the zero-point locator, performs positioning and limiting. The cleaning and drying device is used to clean the processed workpiece. The measuring mechanism includes a measuring platform and a coordinate measuring machine (CMM). The CMM is used to measure the processed workpiece on the measuring platform. The robot uses the gripping fixture to grasp the zero-point positioning carrier plate assembly with the workpiece fixed for material flow. The loading station is used for loading workpieces. The loading and connecting station is used to reverse the flow of the zero-point positioning carrier plate after loading. The vision imaging station is also equipped with an automatic barcode scanning device for scanning and confirming whether the zero-point positioning carrier plate information is from the processing workpiece. If required, the visual recognition device takes a picture and matches it with the workpiece information; otherwise, the conveying mechanism continues to cycle. The picking and placing station is used to store the zero-point positioning carrier plate for the workpieces to be processed. The picking and placing station is located in the middle of the circulating conveying system. The unloading and connecting station is used to realize the unloading and reversing of the processed workpieces. The unloading and disassembly station is used to unbind the zero-point positioning carrier plate from the workpiece information and complete the entire cycle of the workpiece. The cleaning and drying device includes a loading platform, a cleaning and drying machine, an unloading platform, and a truss system. The loading platform and the unloading platform are respectively located at the loading position and unloading position of the cleaning and drying machine. The cleaning and drying machine is used for cleaning the workpieces. The truss system is used to grab the workpieces and move them between the loading platform, the cleaning and drying machine, and the unloading platform.The truss system includes support columns, an X-axis moving assembly, a Z-axis moving assembly, and a truss clamp. The support columns are located at both ends of the washing and drying machine. The X-axis moving assembly is mounted on the support columns and positioned above the washing and drying machine. The Z-axis moving assembly is mounted on the X-axis moving assembly and can move along it. The truss clamp is mounted on the Z-axis moving assembly, and the Z-axis moving assembly drives the truss clamp to move vertically.

2. The intelligent flexible production line according to claim 1, characterized in that, The gripping fixture includes a fixture frame assembly, a lower parallel pneumatic gripper, an upper parallel pneumatic gripper, a lower gripper, and an upper gripper. The lower parallel pneumatic gripper, the upper parallel pneumatic gripper, the lower gripper, and the upper gripper are disposed on the fixture frame assembly. The lower gripper and the upper gripper are used to grip the zero-point positioning carrier plate.

3. The intelligent flexible production line according to claim 1, characterized in that, The visual recognition device includes a support column, a connecting cantilever, a camera mounting plate, a camera, a light source height adjustment plate, a light source mounting plate, a light source angle adjustment plate, and a light source. The camera is fixed to the support column via the connecting cantilever and the camera mounting plate, and the light source is fixed to the connecting cantilever via the light source height adjustment plate, the light source mounting plate, and the light source angle adjustment plate.

4. The intelligent flexible production line according to claim 1, characterized in that, Both the loading platform and the unloading platform include a base frame, a receiving plate, a receiving block, a positioning pin, and a sensing component for sensing the workpiece. The receiving plate is fixed on the base frame, the receiving block is fixed on the receiving plate, the positioning pin is disposed on the receiving plate, and the sensing component is disposed on the side of the receiving plate via a mounting plate.

5. The intelligent flexible production line according to claim 1, characterized in that, The cleaning and drying machine includes a frame assembly, an ultrasonic cleaning tank, a high-pressure spray tank, a drying tank, and a movable door. The ultrasonic cleaning tank, the high-pressure spray tank, and the drying tank are sequentially arranged inside the frame assembly. The movable door is movably connected to the upper part of the frame assembly and is used to cover the ultrasonic cleaning tank, the high-pressure spray tank, and the drying tank.

6. The intelligent flexible production line according to claim 1, characterized in that, The measuring mechanism is located in a three-coordinate measuring room, and the measuring platform is equipped with a zero-point positioning base plate assembly.

7. The intelligent flexible production line according to claim 6, characterized in that, The machining center is equipped with an automatic lifting door assembly, which consists of a lifting cylinder, a lifting door plate, and a fixed connecting plate. The lifting cylinder is fixed to the frame of the machining center through the fixed connecting plate. The lifting door plate is connected to the movable end of the lifting cylinder. The lifting cylinder is used to drive the lifting door plate to move and realize the opening and closing of the automatic lifting door assembly.

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