Disclosure of Invention
The invention relates to a multi-station intelligent manufacturing unit for a stamping forming and forming die, which is a solution for realizing integration of intelligent processing, intelligent detection and intelligent forming, and solves the problem that the closed-loop intelligent joint adjustment of die manufacturing and stamping forming can feed back a system and intelligently correct a die.
A multi-station intelligent manufacturing method for stamping forming and forming dies comprises the following steps:
(1) initializing the RFID label of the stereoscopic warehouse according to the warehouse state through an MES according to a preset encoding rule; the MES sends out an instruction, the robot realizes the following sequential actions, a forming die part is taken from a stereoscopic warehouse (A1, B1) and sent into a zero point quick-change clamp of a multi-axis machining center, the robot exits, the multi-axis machining center starts, the operation machining is completed, an online measuring head is used for detecting, the detection is unqualified, the MES performs tool compensation, the operation machining is completed, the online detection is qualified, the data is returned to the MES system, and the robot takes out the forming die part and sends back to the stereoscopic warehouse (A1, B1);
(2) the MES sends out an instruction, a robot enters a stereoscopic warehouse (A1, B1) to take a forming die part and send the forming die part to an intelligent assembly table, the die is assembled, the assembled forming die is sent to a numerical control forming press station A through a die conveying platform, the numerical control forming press performs trial punching, if a punched product is unqualified, the forming die is sent back to the intelligent assembly table through the die conveying platform, the forming die part is automatically disassembled and sent back to the stereoscopic warehouse (A1, B1), the MES performs tool repair, the step (1) is repeated, the process size of the forming die part is corrected by using a multi-axis machining center, the step (2) is repeated, the die is assembled, and a qualified intermediate semi-finished;
(3) the MES sends out an instruction, the robot gets an electrode blank from a stereoscopic warehouse (A2, B2), the electrode blank is sent to a zero quick-change fixture of a multi-axis machining center, the robot exits, the multi-axis machining center is started, the operation machining is completed, an online measuring head is used for detecting, the detection is unqualified, the MES performs tool compensation, the operation machining is completed, the online detection is qualified, the data returns to the MES system, and the robot takes out the formed electrode part and sends the electrode part back to the stereoscopic warehouse (A2, B2);
(4) the MES sends out an instruction, the robot gets a forming die part from a stereoscopic warehouse (A3, B3) and sends the forming die part into a zero-point quick-change clamp of an electric spark forming machine, the robot exits, the robot gets an electrode part from the stereoscopic warehouse (A2, B2) and sends the electrode part into a main shaft clamp of the electric spark forming machine, the electric spark forming machine is started and finishes the operation and processing, the robot gets the electrode to return to the stereoscopic warehouse (A2, B2), the robot gets the forming die part and sends the forming die part into a diagram zero-point positioning clamp, a three-coordinate measuring machine measures the size of a forming die opening of the forming part, the forming gap is ensured to be in a preset range, and the robot gets the forming die part to return;
(5) the MES sends out an instruction, the robot gets a forming die part from a stereoscopic warehouse (A3, B3) in the figure and sends the forming die part into an intelligent assembly table, the die is assembled into a forming die, the forming die part is sent into a station B of a numerical control forming press through a die conveying platform after being assembled, the numerical control forming press performs trial punching, if a punched product is unqualified, the forming die part is sent back to the intelligent assembly table through the die conveying platform, the forming die part is disassembled and sent back to the stereoscopic warehouse (A3, B3), the MES performs electric spark discharge compensation, the step (4) is repeated, the electric spark forming press corrects the process size of the forming die part, the step (5) is repeated to assemble the die;
(6) completing the moulds at other stations by the same steps;
(7) the robot takes the formed blank from the stereoscopic warehouse (A4, B4), the formed blank is sent to a forming press station A, the robot claw is withdrawn, the forming press A is started and carries out stamping forming, the robot takes the semi-finished product formed piece of the forming station A and puts the semi-finished product formed piece back to the stereoscopic warehouse (A5, B5) for transposition A;
(8) the robot takes the scanner from the tool quick-changing table, and indexes the A position to three-dimensionally scan the semi-finished stamping part in a stereoscopic warehouse (A5, B5);
if the semi-finished product stamping part is not qualified, inputting repairing parameters according to errors, automatically adjusting the closing height of the die, and placing the scanned semi-finished product stamping part into a waste box by a robot;
if the quality is qualified, entering the next step;
(9) the robot takes the formed blank from the stereoscopic warehouse (A4, B4), the formed blank is sent to a station A of a forming press, a claw of the robot is withdrawn, the robot takes the semi-finished stamping part from a position A of transposition in the stereoscopic warehouse (A5, B5), the formed blank is sent to a station B of the forming press, the claw of the robot is withdrawn, the forming press is started and carries out stamping forming, the robot firstly takes the semi-finished stamping part at the station A of the forming press, the semi-finished stamping part is placed back to the stereoscopic warehouse for transposition A, then the semi-finished stamping part at the station B of the forming press is taken, and the semi-finished stamping part is placed back to the stereoscopic warehouse (A6, B6;
(10) the robot takes the scanner from the tool quick-changing table, and turns the three-dimensional scanning semi-finished stamping part at the position B in a stereoscopic warehouse (A6, B6);
if the workpiece is not qualified, inputting repair parameters according to errors, automatically adjusting the closing height of the die, and placing the scanned semi-finished stamping workpiece into a waste box by the robot;
if the quality is qualified, entering the next step;
(11) the robot takes the formed blank from the stereoscopic warehouse (A4, B4), the formed blank is sent to a forming press station A, the robot claw is withdrawn, the robot takes the semi-finished product formed piece from the stereoscopic warehouse (A5, B5) at the position of the transposition A, the formed blank is sent to a forming press station B, the robot claw is withdrawn, the robot takes the semi-finished product pressed piece from the stereoscopic warehouse (A6, B6) at the position of the transposition B, the formed blank is sent to a forming press station C, the forming press is started and carries out stamping forming, the robot takes the semi-finished product formed piece at the forming press station A at the position of the forming press station A, puts the semi-finished product formed piece back to the stereoscopic warehouse (A5, B5), then takes the semi-finished product formed piece at the forming press station B, puts the semi-finished product formed piece back to the stereoscopic warehouse (A6, B6) at the position of the transposition B, then takes the finished product formed piece at the forming;
(12) the robot takes the scanner from the tool quick-changing table, the three-dimensional scanning finished product forming piece is positioned at the position C in a stereoscopic warehouse (A7, B7), the finished product forming piece is scanned and qualified, and the scanned stamping piece is placed into a finished product box by the robot;
(13) and by parity of reasoning, debugging is completed, and stamping forming is continuously carried out.
In the invention, the MES is an intelligent control and design system, the functional modules of the MES comprise a process design module, a scheduling management module, an equipment management module, a measurement and tool compensation module, a production statistics module, a system setting module, a task management module and the like, and each module comprises a specific management function.
(1) Design of the process
And designing a 3D file according to a given 2D (DWG) file, and automatically generating EBOM, PBOM and numerical control machining process files from a design archive of the 3D software.
(2) Scheduling management
The schedule management module includes manual scheduling, automatic scheduling and process management.
1) Manual scheduling
the method comprises the steps of selecting manual scheduling according to machining and forming requirements, generating a machining process and a forming process of a workpiece, carrying out step-by-step machining and forming on each process of the workpiece, carrying out loading, unloading and material changing, automatically matching electrodes in a warehouse, carrying out repair on numerical control equipment such as an electric spark forming machine and a machining center according to a detection result of three coordinates, sending machined qualified parts into a die assembly unit, completing intelligent assembly, and sending the assembled die into a station A, a station B and a station C … of a forming press.
and secondly, finishing the processing of the parts by arranging and combining.
and mixing flow can be performed by a plurality of parts.
and fourthly, the part processing program is automatically issued to numerical control equipment such as an electric spark forming machine, a processing center and the like through a network.
able to be repaired and replaced.
sixthly, the blanking clearance can be adjusted, and the forming closing height can be adjusted.
2) Automatic scheduling
Automatic scheduling can be selected, and the automatic scheduling function can automatically carry out production processing and forming scheduling on order tasks according to parameters such as processes and the like. After scheduling is completed, automatic processing, forming and assembling of orders can be completed by combining other modules.
3) Machining program management
firstly, a processing program can be imported, the processing program can be directly issued to a machine tool through a network, and the issuing state can be tracked.
secondly, the machining program can be uploaded, and the programs of the electric spark forming machine and the machining center can be directly uploaded to a local computer through a network (suitable for the third race)
and thirdly, after the machining program is introduced, the workpiece can automatically identify the matched machining program (adapting to the change of the type of the workpiece), and the machine tool is issued and automatically loaded through a network before machining.
(3) Device management
And collecting data of production line equipment.
1) Machining center data acquisition
firstly, the working state of the machine tool is collected, including off-line/on-line, processing, idle, alarming and the like.
and secondly, collecting shaft information including a working mode, a feeding multiplying power, a shaft position, a main shaft load, a main shaft speed and the like.
and thirdly, collecting the name of the processing program being executed by the machine tool.
and fourthly, collecting alarm information of the machine tool.
collecting information of a machine tool chuck and opening and closing the door.
sixthly, acquiring the cutter and tool complement information of the machine tool.
2) Data acquisition for electric spark forming machine
firstly, collecting working states of the electric spark forming machine, including off-line/on-line, processing, idle, alarming and the like.
collecting information of the electric spark forming machine, including information of shaft position, working mode, working state and the like.
and thirdly, acquiring the name of the machining program and the number of the machining condition which are executed by the electric spark forming machine.
and fourthly, collecting alarm code information of the electric spark forming machine.
collecting information of the chuck state, the oil groove in place and the like of the electric spark forming machine.
3) Robot data acquisition
① robot axis position and axis speed information includes a joint 1, a joint 2, a joint 3, a joint 4, a joint 5, a joint 6, and a seventh axis.
and secondly, the working state, the working mode, the running speed and other information of the robot.
and thirdly, communication state information of the robot.
and fourthly, robot alarm information.
the current loaded project name and loaded program name information of the robot.
4) Data acquisition of digital control forming machine
firstly, the working state of the machine tool is collected, including off-line/on-line, forming (molding), idle, alarming and the like.
collecting oil pressure, speed information, etc.
and thirdly, acquiring alarm information of the machine tool.
and fourthly, collecting the door opening and closing information of the machine tool.
5) Bin management
and setting material information including type, field order and the like.
tracking material information, tracking material state information in real time, wherein the material state information comprises a material-free state, a material waiting state, a material processing state and a material processing state.
③ material information is synchronously sent to the PLC ③ the five-color lamp.
and fourthly, the module has a bin inventory function, each bin drop-down list can be bound with any workpiece type, each type of workpiece can be bound with a plurality of bins, and the module has a read-write function for executing RFID.
6) Communication setting function of five-color lamp
7) Bin initialization function
8) Monitoring function
setting communication parameters of the video recorder.
and secondly, previewing the camera video.
and thirdly, intercepting the monitoring picture.
and fourthly, displaying the operation information of the video recorder.
(4) Measurement and knife compensation
1) Tool information collection
And acquiring the number of the cutters of the machine tool in real time and acquiring data of the cutters of the machine tool.
2) Measurement data acquisition
And reading and displaying the cutter information of the machining center, including information such as length, radius, length compensation and radius compensation.
firstly, on-line measurement data acquisition
And displaying the size information and the cutter compensation information of the workpiece, and checking the error between the theoretical value and the actual value of the workpiece after the workpiece in the machining center is machined.
acquisition of three-coordinate measurement data
a) The three-coordinate measuring point can be designed through 3D design software, a measuring program is generated, and after the measurement is automatically executed, the three-coordinate measuring result can be collected.
b) After the three-coordinate measurement is finished, the measurement data of the workpiece to be detected can be output through a network, the measurement parameters are compared, whether the detection is qualified or not is judged, a measurement report is automatically generated, and the measurement report corresponding to the part can be checked in the control software.
c) The device has a function of recording measurement historical data, can check information such as measurement data, measurement results, measurement time and the like of each machined workpiece, is convenient for a player to analyze the measurement data and the machining trend, and the measurement objects comprise measured values, nominal values, upper deviations, lower deviations and the like.
d) The device has a measurement tolerance definition function, can set the tolerance of different part types, automatically obtains the three-coordinate measurement value, compares the theoretical size and the tolerance value, and automatically analyzes the measurement result.
e) And displaying the size information and the cutter compensation information of the workpiece, and checking the error between the theoretical value and the actual value of the workpiece after the workpiece in the machining center is machined.
3) Repair of
The dimension information and the cutter compensation information of the workpiece are displayed, after the workpiece in the machining center is machined, the error between the theoretical value and the actual value of the workpiece can be checked, and then the repair or the machining is determined; if the repair is needed, the corresponding tool compensation is determined, and the repair operation is performed after the tool compensation is written into the system.
4) Quality tracing function
The processing procedure of each part can be traced, and the traced content comprises the processing procedure, the measurement data and the measurement result of each part, the measured yield, the measured reject ratio and other information.
(5) Production statistics
1) Production data statistics
the method comprises the following steps of (1) counting the number of produced parts of a single part, and counting the qualified, unqualified and abnormal numbers of the parts.
and secondly, counting the number of the comprehensive produced parts of the plurality of parts, and counting the qualified, unqualified and abnormal numbers of the parts.
2) Signboard
the monitoring and watching board of the machining center comprises a machine tool online state, a machine tool working state (idle, running and alarming), a shaft position, a shaft speed and a main shaft load.
and secondly, monitoring a watching board of the electric spark forming machine, wherein the watching board comprises information of the electric spark forming machine such as online state, shaft position, machining state, current machining program, alarm code and the like.
and the robot billboard comprises information such as the online state of the robot, the working state (idle, running and alarming) of the robot, the shaft position and the like.
and fourthly, the stock bin billboard comprises stock bin material information and workpiece states.
and fifthly, producing a statistical billboard, including the number of processed pieces, the qualification rate, the utilization rate of equipment and the like.
and sixthly, a measurement result analysis report and a billboard can generate and display results of three-coordinate measurement, scanning quality and the like.
the display form of the signboard is in accordance with the actual production requirement.
(6) System setup
1) Network topology map setup
the production line network development graph is graphically displayed.
and communication parameters of each device can be configured.
2) Network authentication
firstly, the machine tool and the electric spark forming machine are in communication test, and the machine tool and the electric spark forming machine are manually dispatched and loaded with a processing program to verify whether the communication between the machine tool and the electric spark forming machine is normal or not by acquiring information such as a chuck, a door to be opened and closed, the rotating speed of a main shaft and the like (the electric spark forming machine is suitable for a third race)
and secondly, performing communication test of the robot, and verifying whether the communication of the robot is normal or not by acquiring the position information of the robot.
and thirdly, carrying out bin communication test, and verifying whether bin communication is normal or not by setting the state of the bin and the five-color lamp.
and fourthly, testing the three-coordinate communication, and verifying whether the three-coordinate communication is normal or not by testing the external dimension of the blank piece or the trial cut piece.
and (6) testing the communication of the 3D scanner, and verifying whether the communication of the 3D scanner is normal or not by scanning the overall dimension of the blank piece or the trial cut piece.
3) Log
And recording the operation information of the software.
(7) Task management
1) Task files such as orders, drawings and the like can be directly obtained in the task receiving module.
2) File material (including drawings, pdf format craft cards, etc. files) may be uploaded to the server.
The intelligent manufacturing unit of the multi-station stamping forming and forming die is characterized in that a stamping forming machine, a die precision measuring machine, equipment, die processing equipment, an industrial robot, data information acquisition equipment, die debugging equipment and the like form a hardware system, and a software system is formed by combining an intelligent control technology, a high-efficiency processing technology, an industrial Internet of things technology, an RFID digital information technology, an industrial engineering technology and the like, so that an intelligent processing, intelligent detection and intelligent forming integrated production line is realized.
Compared with the prior art, the invention has the following advantages: the invention realizes the integration of intelligent processing, intelligent detection and intelligent forming, solves the problem of intelligent joint adjustment of die manufacturing and stamping forming closed loop, enables the stamping forming quality problem to be fed back to a system, and intelligently corrects the die. The equipment workshop used by the method has small occupied area, high production efficiency and effectively reduced forming precision control and joint debugging difficulty.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Fig. 1 is a schematic diagram of an intelligent manufacturing unit of a multi-station stamping forming and forming die, which mainly comprises 17 parts, a safety protection system 1, a numerical control forming machine 2, an electric spark forming machine 3, a three-coordinate measuring machine 4, a tool table 5, a multi-axis linkage numerical control machining center 6, a tool quick-change table 7, a stereoscopic warehouse 8, a six-axis robot 9, an intelligent billboard 10, a cleaning and drying system 11, a servo one-dimensional walking shaft 12, an intelligent die assembling table 13, a die conveying platform 14, an intelligent control and design system 15, a PLC (programmable logic controller) electrical control system 16 and a robot control cabinet 17.
A multi-station intelligent manufacturing method for stamping forming and forming dies comprises the following steps:
(1) initializing the RFID label of the stereoscopic warehouse according to the warehouse state through an MES according to a preset encoding rule; the MES sends out an instruction, the robot realizes the following sequential actions, a forming die part is taken from a stereoscopic warehouse (A1, B1) and sent into a zero point quick-change clamp of a multi-axis machining center, the robot exits, the multi-axis machining center starts, the operation machining is completed, an online measuring head is used for detecting, the detection is unqualified, the MES performs tool compensation, the operation machining is completed, the online detection is qualified, the data is returned to the MES system, and the robot takes out the forming die part and sends back to the stereoscopic warehouse (A1, B1);
(2) the MES sends out an instruction, a robot enters a stereoscopic warehouse (A1, B1) to take a forming die part and send the forming die part to an intelligent assembly table, the die is assembled, the assembled forming die is sent to a numerical control forming press station A through a die conveying platform, the numerical control forming press performs trial punching, if a punched product is unqualified, the forming die is sent back to the intelligent assembly table through the die conveying platform, the forming die part is automatically disassembled and sent back to the stereoscopic warehouse (A1, B1), the MES performs tool repair, the step (1) is repeated, the process size of the forming die part is corrected by using a multi-axis machining center, the step (2) is repeated, the die is assembled, and a qualified intermediate semi-finished;
(3) the MES sends out an instruction, the robot gets an electrode blank from a stereoscopic warehouse (A2, B2), the electrode blank is sent to a zero quick-change fixture of a multi-axis machining center, the robot exits, the multi-axis machining center is started, the operation machining is completed, an online measuring head is used for detecting, the detection is unqualified, the MES performs tool compensation, the operation machining is completed, the online detection is qualified, the data returns to the MES system, and the robot takes out the formed electrode part and sends the electrode part back to the stereoscopic warehouse (A2, B2);
(4) the MES sends out an instruction, the robot gets a forming die part from a stereoscopic warehouse (A3, B3) and sends the forming die part into a zero-point quick-change clamp of an electric spark forming machine, the robot exits, the robot gets an electrode part from the stereoscopic warehouse (A2, B2) and sends the electrode part into a main shaft clamp of the electric spark forming machine, the electric spark forming machine is started, the operation and the processing are completed, the robot gets the electrode back to the stereoscopic warehouse (A2, B2), the robot gets the forming die part and sends the forming die part into a diagram zero-point positioning clamp, a three-coordinate measuring machine measures the size of a forming part electric spark forming die opening, the forming gap is ensured to be 0.1-0.2mm, and the warehouse robot gets the forming die part;
(5) the MES sends out an instruction, the robot gets a forming die part from a stereoscopic warehouse (A3, B3) in the figure and sends the forming die part into an intelligent assembly table, the die is assembled into a forming die, the forming die part is sent into a station B of a numerical control forming press through a die conveying platform after being assembled, the numerical control forming press performs trial punching, if a punched product is unqualified, the forming die part is sent back to the intelligent assembly table through the die conveying platform, the forming die part is disassembled and sent back to the stereoscopic warehouse (A3, B3), the MES performs electric spark discharge compensation, the step (4) is repeated, the electric spark forming press corrects the process size of the forming die part, the step (5) is repeated to assemble the die;
(6) completing the moulds at other stations by the same steps;
(7) the robot takes the formed blank from the stereoscopic warehouse (A4, B4), the formed blank is sent to a forming press station A, the robot claw is withdrawn, the forming press A is started and carries out stamping forming, the robot takes the semi-finished product formed piece of the forming station A and puts the semi-finished product formed piece back to the stereoscopic warehouse (A5, B5) for transposition A;
(8) the robot takes the scanner from the tool quick-changing table, and indexes the A position to three-dimensionally scan the semi-finished stamping part in a stereoscopic warehouse (A5, B5);
if the semi-finished product stamping part is not qualified, inputting repairing parameters according to errors, automatically adjusting the closing height of the die, and placing the scanned semi-finished product stamping part into a waste box by a robot;
if the quality is qualified, entering the next step;
(9) the robot takes the formed blank from the stereoscopic warehouse (A4, B4), the formed blank is sent to a station A of a forming press, a claw of the robot is withdrawn, the robot takes the semi-finished stamping part from a position A of transposition in the stereoscopic warehouse (A5, B5), the formed blank is sent to a station B of the forming press, the claw of the robot is withdrawn, the forming press is started and carries out stamping forming, the robot firstly takes the semi-finished stamping part at the station A of the forming press, the semi-finished stamping part is placed back to the stereoscopic warehouse for transposition A, then the semi-finished stamping part at the station B of the forming press is taken, and the semi-finished stamping part is placed back to the stereoscopic warehouse (A6, B6;
(10) the robot takes the scanner from the tool quick-changing table, and turns the three-dimensional scanning semi-finished stamping part at the position B in a stereoscopic warehouse (A6, B6);
if the workpiece is not qualified, inputting repair parameters according to errors, automatically adjusting the closing height of the die, and placing the scanned semi-finished stamping workpiece into a waste box by the robot;
if the quality is qualified, entering the next step;
(11) the robot takes the formed blank from the stereoscopic warehouse (A4, B4), the formed blank is sent to a forming press station A, the robot claw is withdrawn, the robot takes the semi-finished product formed piece from the stereoscopic warehouse (A5, B5) at the position of the transposition A, the formed blank is sent to a forming press station B, the robot claw is withdrawn, the robot takes the semi-finished product pressed piece from the stereoscopic warehouse (A6, B6) at the position of the transposition B, the formed blank is sent to a forming press station C, the forming press is started and carries out stamping forming, the robot takes the semi-finished product formed piece at the forming press station A at the position of the forming press station A, puts the semi-finished product formed piece back to the stereoscopic warehouse (A5, B5), then takes the semi-finished product formed piece at the forming press station B, puts the semi-finished product formed piece back to the stereoscopic warehouse (A6, B6) at the position of the transposition B, then takes the finished product formed piece at the forming;
(12) the robot takes the scanner from the tool quick-changing table, the three-dimensional scanning finished product forming piece is positioned at the position C in a stereoscopic warehouse (A7, B7), the finished product forming piece is scanned and qualified, and the scanned stamping piece is placed into a finished product box by the robot;
(13) and by parity of reasoning, debugging is completed, and stamping forming is continuously carried out.
Fig. 2 shows a MES management and control function block diagram of the present invention, and fig. 3 shows a MES management and control production flow diagram of the present invention, wherein the molding parts 1, 2, 3 refer to the molding die parts, and the molding dies 1, 2, 3 refer to 3 molding dies in 3 molding processes.
It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.